RTL8139L [ETC]

REALTEK 3.3V SINGLE CHIP FAST ETHERNET CONTROLLER WITH POWER MANAGEMENT; REALTEK 3.3V的单芯片快速以太网电源管理控制器
RTL8139L
型号: RTL8139L
厂家: ETC    ETC
描述:

REALTEK 3.3V SINGLE CHIP FAST ETHERNET CONTROLLER WITH POWER MANAGEMENT
REALTEK 3.3V的单芯片快速以太网电源管理控制器

控制器 LTE 以太网 以太网:16GBASE-T
文件: 总62页 (文件大小:645K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
RTL8139C(L)  
REALTEK 3.3V SINGLE CHIP  
FAST ETHERNET CONTROLLER  
WITH POWER MANAGEMENT  
RTL8139C(L)  
7.1 SummaryofEEPROMRegisters............................. 35  
7.2 SummaryofEEPROMPowerManagementRegisters....... 35  
8. PCI Configuration Space Registers..................... 36  
8.1 PCI Configuration Space Table ........................ 36  
8.2 PCI Configuration Space Functions.................. 37  
8.3 Default Values After Power-on (RSTB asserted)...... 42  
8.4 PCI Power Management Functions .................. 43  
8.5 Vital Product Data (VPD)................................. 45  
9. Functional Description ......................................... 46  
9.1 Transmit Operation........................................... 46  
9.2 Receive Operation............................................. 46  
9.3 Line Quality Monitor........................................ 46  
9.4 Clock Recovery Module ................................... 46  
9.5 Loopback Operation ......................................... 46  
9.6 Tx Encapsulation .............................................. 46  
9.7 Collision............................................................ 46  
9.8 Rx Decapsulation.............................................. 47  
9.9 Flow Control..................................................... 47  
9.9.1. Control Frame Transmission..................... 47  
9.9.2. Control Frame Reception.......................... 47  
9.10 LED Functions................................................ 47  
9.10.1 10/100 Mbps Link Monitor...................... 47  
9.10.2 LED_RX.................................................. 48  
9.10.3 LED_TX .................................................. 48  
9.10.4 LED_TX+LED_RX................................. 49  
10. Application Diagram .......................................... 50  
11. Electrical Characteristics................................... 51  
11.1 Temperature Limit Ratings............................. 51  
11.2 DC Characteristics .......................................... 51  
11.2.1 Supply Voltage ........................................ 51  
11.3 AC Characteristics .......................................... 52  
11.3.1 FLASH/BOOT ROM Timing.................. 52  
11.3.2 PCI Bus Operation Timing: ..................... 54  
12. Mechanical Dimensions...................................... 60  
1. Features:.................................................................. 2  
2. General Description................................................ 3  
3. Block Diagram ........................................................ 4  
4. Pin Assignments...................................................... 5  
5. Pin Descriptions ...................................................... 6  
5.1 Power Management/Isolation Interface.............. 6  
5.2 PCI Interface....................................................... 6  
5.3 FLASH/EEPROM Interface ............................... 8  
5.4 Power Pins.......................................................... 9  
5.5 LED Interface ..................................................... 9  
5.6 Attachment Unit Interface .................................. 9  
5.7 Test and Other Pins............................................. 9  
6. Register Descriptions............................................ 10  
6.1 Receive Status Register in Rx packet header.... 12  
6.2 Transmit Status Register................................... 13  
6.3 ERSR: Early Rx Status Register....................... 14  
6.4 Command Register ........................................... 14  
6.5 Interrupt Mask Register.................................... 15  
6.6 Interrupt Status Register ................................... 15  
6.7 Transmit Configuration Register ...................... 16  
6.8 Receive Configuration Register........................ 17  
6.9 9346CR: 93C46 (93C56) Command Register ......... 19  
6.10 CONFIG 0: Configuration Register 0............. 20  
6.11 CONFIG 1: Configuration Register 1............. 21  
6.12 Media Status Register..................................... 22  
6.13 CONFIG 3: Configuration Register3.............. 22  
5.14 CONFIG 4: Configuration Register4.............. 24  
6.15 Multiple Interrupt Select Register..................... 25  
6.16 PCI Revision ID.............................................. 25  
6.17 TransmitStatusofAllDescriptors(TSAD)Register......... 25  
6.18 Basic Mode Control Register.......................... 26  
6.19 Basic Mode Status Register............................ 26  
6.20 Auto-negotiation Advertisement Register.............. 27  
6.21 Auto-Negotiation Link PartnerAbilityRegister ............... 27  
6.22 Auto-negotiation Expansion Register .............. 28  
6.23 Disconnect Counter ........................................ 28  
6.24 False Carrier Sense Counter ........................... 28  
6.25 NWay Test Register........................................ 28  
6.26 RX_ER Counter.............................................. 29  
6.27 CS Configuration Register.............................. 29  
6.28 FlashMemoryRead/WriteRegister ........................ 29  
6.29 Config5: Configuration Register 5 ................. 30  
6.30 Function Event Register ................................. 31  
6.31 Function Event Mask Register........................ 31  
6.32 Function Present State Register...................... 32  
6.33 Function Force Event Register ....................... 32  
7. EEPROM Contents .............................................. 33  
1
2002/01/10  
Rev.1.4  
RTL8139C(L)  
1. Features  
128 pin QFP/LQFP  
Supports auxiliary power-on internal reset, to be ready  
for remote wake-up when main power still remains off  
Supports auxiliary power auto-detect, and sets the  
related capability of power management registers in PCI  
configuration space.  
Includes a programmable, PCI burst size and early  
Tx/Rx threshold.  
Supports a 32-bit general-purpose timer with the  
external PCI clock as clock source, to generate  
timer-interrupt  
Contains two large (2Kbyte) independent receive and  
transmit FIFO’s  
Advanced power saving mode when LAN function or  
wakeup function is not used  
Uses 93C46 (64*16-bit EEPROM) or 93C56  
(128*16-bit EEPROM) to store resource configuration,  
ID parameter, and VPD data. The 93C56 can also be  
used to store the CIS data structure for CardBus  
application.  
Integrated Fast Ethernet MAC, Physical chip and  
transceiver in one chip  
10 Mb/s and 100 Mb/s operation  
Supports 10 Mb/s and 100 Mb/s N-way  
Auto-negotiation operation  
PCI local bus single-chip Fast Ethernet controller  
Compliant to PCI Revision 2.2  
Supports PCI clock 16.75MHz-40MHz  
Supports PCI target fast back-to-back transaction  
Provides PCI bus master data transfers and PCI memory  
space or I/O space mapped data transfers of  
RTL8139C(L)'s operational registers  
Supports PCI VPD (Vital Product Data)  
Supports ACPI, PCI power management  
Supports CardBus. The CIS can be stored in 93C56 or  
expansion ROM  
Supports LED pins for various network activity  
indications  
Supports digital and analog loopback capability on both  
ports  
Half/Full duplex capability  
Supports Full Duplex Flow Control (IEEE 802.3x)  
3.3V power supply with 5V tolerant I/Os.  
Supports up to 128K bytes Boot ROM interface for both  
EPROM and Flash memory  
Supports 25MHz crystal or 25MHz OSC as the internal  
clock source. The frequency deviation of either crystal or  
OSC must be within 50 PPM.  
Compliant to PC99 standard  
Supports Wake-On-LAN function and remote wake-up  
(Magic Packet*, LinkChg and Microsoft® wake-up  
frame)  
Supports 4 Wake-On-LAN (WOL) signals (active high,  
active low, positive pulse, and negative pulse)  
* Third-party brands and names are the property of their  
respective owners.  
Note: The model number of the QFP package is RTL8139C. The LQFP package model number is RTL8139CL.  
2
2002/01/10  
Rev.1.4  
RTL8139C(L)  
2. General Description  
The Realtek RTL8139C(L) is a highly integrated and cost-effective single-chip Fast Ethernet controller that provides 32-bit  
performance, PCI bus master capability, and full compliance with IEEE 802.3u 100Base-T specifications and IEEE 802.3x Full  
Duplex Flow Control. It also supports Advanced Configuration Power management Interface (ACPI), PCI power management  
for modern operating systems that are capable of Operating System Directed Power Management (OSPM) to achieve the most  
efficient power management possible. The RTL8139CL is suitable for applications such as CardBus or mobile devices with a  
built-in network controller. The CIS data can be stored in either a 93C56 EEPROM or expansion ROM.  
In addition to the ACPI feature, the RTL8139C(L) also supports remote wake-up (including AMD Magic Packet, LinkChg, and  
Microsoft wake-up frame) in both ACPI and APM environments. The RTL8139C(L) is capable of performing an internal reset  
through the application of auxiliary power. When auxiliary power is on and the main power remains off, the RTL8139C(L) is  
ready and waiting for the Magic Packet or Link Change to wake the system up. Also, the LWAKE pin provides 4 different output  
signals including active high, active low, positive pulse, and negative pulse. The versatility of the RTL8139C(L) LWAKE pin  
provides motherboards with the Wake-On-LAN (WOL) function. The RTL8139C(L) also supports Analog Auto-Power-down,  
that is, the analog part of the RTL8139C(L) can be shut down temporarily according to user requirements or when the  
RTL8139C(L) is in a power down state with the wakeup function disabled. In addition, when the analog part is shut down and  
the IsolateB pin is low (i.e. the main power is off), then both the analog and digital parts stop functioning and power consumption  
of the RTL8139C(L) will be negligible. The RTL8139C(L) also supports an auxiliary power auto-detect function, and will  
auto-configure related bits of their own PCI power management registers in PCI configuration space.  
The PCI Vital Product Data (VPD) is also supported to provide the information that uniquely identifies hardware (i.e., the  
RTL8139C(L) LAN card). The information may consist of part number, serial number, and other detailed information.  
To provide cost down support, the RTL8139C(L) is capable of using a 25MHz crystal or OSC as its internal clock source.  
The RTL8139C(L) keeps network maintenance costs low and eliminates usage barriers. It is the easiest way to upgrade a  
network from 10 to 100Mbps. It also supports full-duplex operation, making 200Mbps bandwidth possible at no additional cost.  
To improve compatibility with other brands’ products, the RTL8139C(L) is also capable of receiving packets with  
InterFrameGap no less than 40 Bit-Time. The RTL8139C(L) is highly integrated and requires no “glue” logic or external  
memory. It includes an interface for a boot ROM and can be used in diskless workstations, providing maximum network security  
and ease of management.  
3
2002/01/10  
Rev.1.4  
RTL8139C(L)  
3. Block Diagram  
MAC  
Boot ROM  
Interface  
EEPROM  
Interface  
LED Driver  
Power Control Logic  
Early Interrupt  
Threshold  
Register  
Interrupt  
Control  
Logic  
Early Interrupt  
Control Logic  
PCI  
Interface  
Transmit/  
FIFO  
Control  
Logic  
Receive  
Logic  
FIFO  
MII  
Interface  
Interface  
PHY  
100M  
5B 4B  
Decoder  
Data  
Alignment  
RXD  
Descrambler  
RXC 25M  
10/100  
half/full  
Switch  
Logic  
MII  
Interface  
TXD  
4B 5B  
Encoder  
Scrambler  
TXC 25M  
10/100M Auto-negotiation  
Control Logic  
Link pulse  
10M  
TXC10  
TXD10  
Manchester coded  
waveform  
10M Output waveform  
shaping  
RXC10  
RXD10  
Data Recovery  
Receive low pass filter  
Transceiver  
TD+  
TXC 25M  
TXD  
3 Level  
Driver  
TXO+  
TXO -  
Parrallel  
to Serial  
Variable Current  
Baseline  
Peak  
Detect  
wander  
Correction  
RXIN+  
RXIN-  
3 Level  
Comparator  
MLT-3  
to NRZI  
Adaptive  
Equalizer  
ck  
data  
RXC 25M  
RXD  
Serial to  
Parrallel  
Master  
PPL  
Slave  
PLL  
Control  
Voltage  
25M  
4
2002/01/10  
Rev.1.4  
RTL8139C(L)  
4. Pin Assignments  
84 RTSET  
83 LWAKE/CSTSCHG  
82 RTT2  
85 GND  
86 RXIN-  
87 RXIN+  
88 OEB  
81 RTT3  
80 GND  
79 X1  
78 X2  
89 WEB  
90 VDD  
77 VDD  
76 PMEB  
75 CLKRUNB  
74 GND  
73 NC  
91 TXD-  
92 TXD+  
93 GND  
94 NC  
95 ISOLATEB  
96 VDD  
72 NC  
71 NC  
97 LED2  
98 LED1  
99 LED0  
100 MD7  
101 MD6  
102 MD5  
70 MA16  
69 MA15  
68 MA14  
67 MA13  
66 MA12  
65 MA11  
103 MD4  
104 MD3  
105 MD2  
106 VDD  
107 MD1  
108 MD0  
109 VDD  
110 ROMCSB  
111 GND  
112 GND  
113 GND  
114 INTAB  
115 RSTB  
116 CLK  
64 MA10  
63 MA9  
62 GND  
61 MA8  
60 MA7  
59 VDD  
58 VDD  
57 MA6/9356SEL  
56 GND  
55 GND  
54 NC  
53 MA5  
52 MA4  
51 MA3  
RTL8139C(L)  
117 GNTB  
118 REQB  
119 VDD  
120 AD31  
121 AD30  
122 AD29  
123 AD28  
124 GND  
125 AD27  
126 AD26  
127 AD25  
128 AD24  
50  
EECS  
49 MA2  
48 MA1  
47 MA0  
46 VDD  
45 AD0  
44 AD1  
43 AD2  
42 AD3  
41 AD4  
40 GND  
39 AD5  
1
2
3
4
5
6
7
8
9
VDD  
38 AD6  
CBE3B  
IDSEL  
AD23  
AD22  
AD21  
GND  
37 AD7  
36 CBE0B  
35 VDD  
34 AD8  
33 AD9  
32 AD10  
31 AD11  
30 GND  
29 AD12  
28 AD13  
27 AD14  
26 AD15  
25 VDD  
24 CBE1B  
23 PAR  
AD20  
AD19  
10 AD18  
11 AD17  
12 VDD  
13 AD16  
14 CBE2B  
15 FRAMEB  
16 IRDYB  
17 TRDYB  
18 GND  
22 SERRB  
21 PERRB  
20 STOPB  
19 DEVSELB  
5
2002/01/10  
Rev.1.4  
RTL8139C(L)  
5. Pin Descriptions  
In order to reduce pin count, and therefore size and cost, some pins have multiple functions. In those cases, the functions are  
separated with a “/” symbol. Refer to the Pin Assignment diagram for a graphical representation.  
5.1 Power Management/Isolation Interface  
Symbol  
PMEB  
Type  
Pin No  
Description  
O/D  
76  
Power Management Event: Open drain, active low. Used by the  
RTL8139C(L) to request a change in its current power management  
state and/or to indicate that a power management event has occurred.  
Isolate Pin: Active low. Used to isolate the RTL8139C(L) from the PCI  
bus. The RTL8139C(L) does not drive its PCI outputs (excluding  
PME#) and does not sample its PCI input (including RST# and  
PCICLK) as long as the Isolate pin is asserted.  
(PME#)  
ISOLATEB  
I
95  
83  
(ISOLATE#)  
LWAKE/  
O
LAN WAKE-UP Signal (When CardB_En=0, bit2 Config3): This  
signal is used to inform the motherboard to execute the wake-up  
process. The motherboard must support Wake-On-LAN (WOL). There  
are 4 choices of output, including active high, active low, positive pulse,  
and negative pulse, that may be asserted from the LWAKE pin. Please  
refer to the LWACT bit in the CONFIG1 register and the LWPTN bit in  
the CONFIG4 register for the setting of this output signal. The default  
output is an active high signal.  
CSTSCHG  
Once a PME event is received, the LWAKE and PMEB assert at the  
same time when the LWPME (bit4, CONFIG4) is set to 0. If the  
LWPME is set to 1, the LWAKE asserts only when the PMEB asserts  
and the ISOLATEB is low.  
CSTSCHG Signal (When CardB_En=1, bit2 Config3): This signal  
is used in CardBus applications only and is used to inform the  
motherboard to execute the wake-up process whenever a PME event  
occurs. This is always an active high signal, and the setting of LWACT  
(bit 4, Config1), LWPTN (bit2, Config4), and LWPME (bit4, Config4)  
mean nothing in this case.  
This pin is a 3.3V signaling output pin.  
5.2 PCI Interface  
Symbol  
AD31-0  
Type  
Pin No  
Description  
T/S  
120-123, 125-128, 4-6, PCI address and data multiplexed pins.  
8-11, 13, 26-29, 31-34,  
37-39, 41-45  
C/BE3-0  
CLK  
T/S  
I
2, 14, 24, 36  
116  
PCI bus command and byte enables multiplexed pins.  
Clock: This PCI Bus clock provides timing for all transactions and bus  
phases, and is input to PCI devices. The rising edge defines the start of  
each phase. The clock frequency ranges from 0 to 33MHz.  
CLKRUNB  
I/O  
75  
Clock Run: This signal is used by the RTL8139C(L) to request starting  
(or speeding up) the clock, CLK. CLKRUNB also indicates the clock  
status. For the RTL8139C(L), CLKRUNB is an open drain output as  
well as an input. The RTL8139C(L) requests the central resource to  
start, speed up, or maintain the interface clock by the assertion of  
CLKRUNB. For the host system, it is an S/T/S signal. The host system  
(central resource) is responsible for maintaining CLKRUNB asserted,  
and for driving it high to the negated (deasserted) state.  
6
2002/01/10  
Rev.1.4  
RTL8139C(L)  
DEVSELB  
FRAMEB  
S/T/S  
S/T/S  
19  
15  
Device Select: As a bus master, the RTL8139C(L) samples this signal  
to insure that a PCI target recognizes the destination address for the data  
transfer. As a target, the RTL8139C(L) asserts this signal low when it  
recognizes its target address after FRAMEB is asserted.  
Cycle Frame: As a bus master, this pin indicates the beginning and  
duration of an access. FRAMEB is asserted low to indicate the start of a  
bus transaction. While FRAMEB is asserted, data transfer continues.  
When FRAMEB is deasserted, the transaction is in the final data phase.  
As a target, the device monitors this signal before decoding the address  
to check if the current transaction is addressed to it.  
GNTB  
I
117  
Grant: This signal is asserted low to indicate to the RTL8139C(L) that  
the central arbiter has granted ownership of the bus to the  
RTL8139C(L). This input is used when the RTL8139C(L) is acting as a  
bus master.  
REQB  
IDSEL  
INTAB  
T/S  
I
118  
3
Request: The RTL8139C(L) will assert this signal low to request the  
ownership of the bus from the central arbiter.  
Initialization Device Select: This pin allows the RTL8139C(L) to  
identify when configuration read/write transactions are intended for it.  
Interrupt A: Used to request an interrupt. It is asserted low when an  
interrupt condition occurs, as defined by the Interrupt Status, Interrupt  
Mask and Interrupt Enable registers.  
O/D  
114  
IRDYB  
TRDYB  
PAR  
S/T/S  
S/T/S  
T/S  
16  
17  
23  
Initiator Ready: This indicates the initiating agent’s ability to complete  
the current data phase of the transaction.  
As a bus master, this signal will be asserted low when the  
RTL8139C(L) is ready to complete the current data phase transaction.  
This signal is used in conjunction with the TRDYB signal. Data  
transaction takes place at the rising edge of CLK when both IRDYB and  
TRDYB are asserted low. As a target, this signal indicates that the  
master has put data on the bus.  
Target Ready: This indicates the target agent’s ability to complete the  
current phase of the transaction.  
As a bus master, this signal indicates that the target is ready for the data  
during write operations and with the data during read operations. As a  
target, this signal will be asserted low when the (slave) device is ready  
to complete the current data phase transaction. This signal is used in  
conjunction with the IRDYB signal. Data transaction takes place at the  
rising edge of CLK when both IRDYB and TRDYB are asserted low.  
Parity: This signal indicates even parity across AD31-0 and C/BE3-0  
including the PAR pin. As a master, PAR is asserted during address and  
write data phases. As a target, PAR is asserted during read data phases.  
7
2002/01/10  
Rev.1.4  
RTL8139C(L)  
PERRB  
SERRB  
S/T/S  
O/D  
21  
22  
Parity Error: When the RTL8139C(L) is the bus master and a parity  
error is detected, the RTL8139C(L) asserts both SERR bit in ISR and  
Configuration Space command bit 8 (SERRB enable). Next, it  
completes the current data burst transaction, then stops operation and  
resets itself. After the host clears the system error, the RTL8139C(L)  
continues its operation.  
When the RTL8139C(L) is the bus target and a parity error is detected,  
the RTL8139C(L) asserts this PERRB pin low.  
System Error: If an address parity error is detected and Configuration  
Space Status register bit 15 (detected parity error) is enabled,  
RTL8139C(L) asserts both SERRB pin low and bit 14 of Status register  
in Configuration Space.  
Stop: Indicates the current target is requesting the master to stop the  
current transaction.  
Reset: When RSTB is asserted low, the RTL8139C(L) performs an  
internal system hardware reset. RSTB must be held for a minimum of  
120 ns.  
STOPB  
RSTB  
S/T/S  
I
20  
115  
5.3 FLASH/EEPROM Interface  
Symbol  
MA16-3  
Type  
Pin No  
70-63, 61, 60, 57,  
53-51  
Description  
O
Boot PROM Address Bus: These pins are used to access up to a  
128k-byte flash memory or EPROM.  
MA8  
I/O  
61  
Output pin as part of Boot PROM (or Flash) address bus after PCI reset.  
Input pin as Aux. Power detect pin to detect if Aux. Power exists or not,  
when initial power-on or PCI reset is asserted. Besides connecting this  
pin to Boot PROM, it should be pulled high to the Aux. Power via a  
resistor to detect Aux. power. If this pin is not pulled high to Aux.  
Power, the RTL8139C(L) assumes that no Aux. power exists. To  
support wakeup from ACPI D3cold or APM power-down, this pin must  
be pulled high to Aux. power via a resistor.  
When this pin is pulled high with a 10Kresistor, the 93C56 EEPROM  
is used to store the resource data and CIS for the RTL8139C(L). The  
RTL8139C(L) latches the status of this pin at power-up to determine  
what EEPROM (93C46 or 93C56) is used, afterwards, this pin is used  
as MA6.  
The MA2-0 pins are switched to EESK, EEDI, EEDO in 93C46  
(93C56) programming or auto-load mode.  
MA6/9356SEL  
MA2/EESK  
I/O  
O
57  
49  
MA1/EEDI  
MA0/EEDO  
EECS  
MD0-7  
ROMCSB  
OEB  
O
O, I  
O
I/O  
O
O
48  
47  
50  
93C46 (93C56) chip select  
Boot PROM data bus  
108, 107, 105-100  
110  
88  
ROM Chip Select: This is the chip select signal of the Boot PROM.  
Output Enable: This enables the output buffer of the Boot PROM or  
Flash memory during a read operation.  
WEB  
O
89  
Write Enable: This signal strobes data into the Flash memory during a  
write cycle.  
8
2002/01/10  
Rev.1.4  
RTL8139C(L)  
5.4 Power Pins  
Symbol  
VDD  
Type  
Pin No  
Description  
P
1, 12, 25, 35, 46, 58,  
59, 106, 109, 119  
77, 90, 96  
Digital Power +3.3V  
P
P
Analog Power +3.3V  
Digital Ground  
GND  
7, 18, 30, 40, 55, 56,  
62, 111, 112, 113, 124  
74, 80, 85, 93  
P
Analog Ground  
5.5 LED Interface  
Symbol  
Type  
Pin No  
99, 98, 97  
Description  
LED0, 1, 2  
O
LED pins  
LEDS1-0  
00  
01  
10  
11  
Tx/Rx  
LINK100  
LINK10  
Tx/Rx  
Tx  
LINK10/100  
Rx  
Tx  
LED0  
LED1  
LED2  
LINK10/100  
FULL  
LINK100  
LINK10  
During power down mode, the LEDs are OFF.  
5.6 Attachment Unit Interface  
Symbol  
Type  
Pin No  
92  
Description  
100/10BASE-T transmit (Tx) Data  
TXD+  
O
O
I
TXD-  
RXIN+  
RXIN-  
X1  
91  
87  
100/10BASE-T receive (Rx) Data  
25 MHz Crystal/OSC. Input  
Crystal Feedback Output: This output is used in crystal connection  
only. It must be left open when X1 is driven with an external 25 MHz  
oscillator.  
I
86  
I
79  
X2  
O
78  
5.7 Test and Other Pins  
Symbol  
Type  
TEST  
I/O  
Pin No  
81, 82  
Description  
Chip test pins.  
This pin must be pulled low by a 1.7Kresistor.  
Reserved  
RTT2-3  
RTSET  
NC  
84  
-
54, 71, 72, 73, 94  
9
2002/01/10  
Rev.1.4  
RTL8139C(L)  
6. Register Descriptions  
The RTL8139C(L) provides the following set of operational registers mapped into PCI memory space or I/O space.  
Offset  
0000h  
R/W  
Tag  
Description  
R/W  
IDR0  
ID Register 0: The ID registers 0-5 are only permitted to read/write  
by 4-byte access. Read access can be byte, word, or double word  
access. The initial value is autoloaded from the EEPROM EthernetID  
field.  
0001h  
0002h  
R/W  
R/W  
R/W  
R/W  
R/W  
-
IDR1  
IDR2  
IDR3  
IDR4  
IDR5  
-
ID Register 1  
ID Register 2  
0003h  
ID Register 3  
0004h  
ID Register 4  
0005h  
ID Register 5  
0006h-0007h  
0008h  
Reserved  
R/W  
MAR0  
Multicast Register 0: The MAR registers 0-7 are only permitted to  
read/write by 4-byte access. Read access can be byte, word, or double  
word access. Driver is responsible for initializing these registers.  
Multicast Register 1  
0009h  
000Ah  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R
MAR1  
MAR2  
MAR3  
MAR4  
MAR5  
MAR6  
MAR7  
TSD0  
Multicast Register 2  
000Bh  
Multicast Register 3  
000Ch  
Multicast Register 4  
000Dh  
Multicast Register 5  
000Eh  
Multicast Register 6  
000Fh  
Multicast Register 7  
0010h-0013h  
0014h-0017h  
0018h-001Bh  
001Ch-001Fh  
0020h-0023h  
0024h-0027h  
0028h-002Bh  
002Ch-002Fh  
0030h-0033h  
0034h-0035h  
0036h  
Transmit Status of Descriptor 0  
Transmit Status of Descriptor 1  
Transmit Status of Descriptor 2  
Transmit Status of Descriptor 3  
Transmit Start Address of Descriptor0  
Transmit Start Address of Descriptor1  
Transmit Start Address of Descriptor2  
Transmit Start Address of Descriptor3  
Receive (Rx) Buffer Start Address  
Early Receive (Rx) Byte Count Register  
Early Rx Status Register  
TSD1  
TSD2  
TSD3  
TSAD0  
TSAD1  
TSAD2  
TSAD3  
RBSTART  
ERBCR  
ERSR  
R
0037h  
0038h-0039h  
003Ah-003Bh  
R/W  
R/W  
R
CR  
CAPR  
CBR  
Command Register  
Current Address of Packet Read (The initial value is 0FFF0h)  
Current Buffer Address: The initial value is 0000h. It reflects total  
received byte-count in the rx buffer.  
Interrupt Mask Register  
003Ch-003Dh  
003Eh-003Fh  
0040h-0043h  
0044h-0047h  
0048h-004Bh  
R/W  
R/W  
R/W  
R/W  
R/W  
IMR  
ISR  
TCR  
RCR  
TCTR  
Interrupt Status Register  
Transmit (Tx) Configuration Register  
Receive (Rx) Configuration Register  
Timer Count Register: This register contains  
a
32-bit  
general-purpose timer. Writing any value to this 32-bit register will  
reset the original timer and begin to count from zero.  
Missed Packet Counter: Indicates the number of packets discarded  
due to rx FIFO overflow. It is a 24-bit counter. After s/w reset, MPC is  
cleared. Only the lower 3 bytes are valid.  
004Ch-004Fh  
R/W  
MPC  
When any value is written, MPC will be reset also.  
93C46 (93C56) Command Register  
0050h  
0051h  
0052h  
R/W  
R/W  
R/W  
9346CR  
CONFIG0  
CONFIG1  
Configuration Register 0  
Configuration Register 1  
10  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
0053H  
-
-
Reserved  
R /W  
0054h-0057h  
TimerInt  
Timer Interrupt Register: Once having written a nonzero value to  
this register, the Timeout bit of ISR register will be set whenever the  
TCTR reaches to this value. The Timeout bit will never be set as long  
as TimerInt register is zero.  
0058h  
R/W  
R/W  
R/W  
-
MSR  
CONFIG3  
CONFIG4  
-
Media Status Register  
Configuration register 3  
Configuration register 4  
Reserved  
Multiple Interrupt Select  
PCI Revision ID = 10h  
Reserved  
0059h  
005Ah  
005Bh  
005Ch-005Dh  
005Eh  
R/W  
R
MULINT  
RERID  
-
005Fh  
-
R
0060h-0061h  
0062h-0063h  
0064h-0065h  
0066h-0067h  
0068h-0069h  
006Ah-006Bh  
006Ch-006Dh  
006Eh-006Fh  
0070h-0071h  
0072h-0073h  
0074h-0075h  
0076-0077h  
0078h-007Bh  
007Ch-007Fh  
0080h  
TSAD  
Transmit Status of All Descriptors  
Basic Mode Control Register  
Basic Mode Status Register  
Auto-Negotiation Advertisement Register  
Auto-Negotiation Link Partner Register  
Auto-Negotiation Expansion Register  
Disconnect Counter  
R/W  
R
BMCR  
BMSR  
ANAR  
ANLPAR  
ANER  
DIS  
R/W  
R
R
R
R
FCSC  
False Carrier Sense Counter  
N-way Test Register  
R/W  
R
NWAYTR  
REC  
RX_ER Counter  
R/W  
-
CSCR  
CS Configuration Register  
Reserved  
-
R/W  
R/W  
R/W  
-
PHY1_PARM  
TW_PARM  
PHY2_PARM  
-
PHY parameter 1  
Twister parameter  
PHY parameter 2  
0081-0083h  
Reserved  
0084h  
0085h  
0086h  
0087h  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
R/W  
CRC0  
CRC1  
CRC2  
Power Management CRC Register0 for Wakeup Frame0  
Power Management CRC Register1 for Wakeup Frame1  
Power Management CRC Register2 for Wakeup Frame2  
Power Management CRC Register3 for Wakeup Frame3  
Power Management CRC Register4 for Wakeup Frame4  
Power Management CRC Register5 for Wakeup Frame5  
Power Management CRC Register6 for Wakeup Frame6  
Power Management CRC Register7 for Wakeup Frame7  
Power Management Wakeup Frame0 (64bit)  
CRC3  
0088h  
CRC4  
0089h  
CRC5  
008Ah  
CRC6  
008Bh  
CRC7  
008Ch–0093h  
0094h–009Bh  
009Ch–00A3h  
00A4h–00ABh  
00ACh–00B3h  
00B4h–00BBh  
00BCh–00C3h  
00C4h–00CBh  
00CCh  
Wakeup0  
Wakeup1  
Wakeup2  
Wakeup3  
Wakeup4  
Wakeup5  
Wakeup6  
Wakeup7  
LSBCRC0  
LSBCRC1  
LSBCRC2  
LSBCRC3  
LSBCRC4  
LSBCRC5  
LSBCRC6  
LSBCRC7  
FLASH  
Power Management Wakeup Frame1 (64bit)  
Power Management Wakeup Frame2 (64bit)  
Power Management Wakeup Frame3 (64bit)  
Power Management Wakeup Frame4 (64bit)  
Power Management Wakeup Frame5 (64bit)  
Power Management Wakeup Frame6 (64bit)  
Power Management Wakeup Frame7 (64bit)  
LSB of the Mask byte of Wakeup Frame0 Within Offset 12 to 75  
LSB of the Mask byte of Wakeup Frame1 Within Offset 12 to 75  
LSB of the Mask byte of Wakeup Frame2 Within Offset 12 to 75  
LSB of the Mask byte of Wakeup Frame3 Within Offset 12 to 75  
LSB of the Mask byte of Wakeup Frame4 Within Offset 12 to 75  
LSB of the Mask byte of Wakeup Frame5 Within Offset 12 to 75  
LSB of the Mask byte of Wakeup Frame6 Within Offset 12 to 75  
LSB of the Mask byte of Wakeup Frame7 Within Offset 12 to 75  
Flash Memory Read/Write Register  
00CDh  
00CEh  
00CFh  
00D0h  
00D1h  
00D2h  
00D3h  
00D4h-00D7h  
11  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
00D8h  
R/W  
-
Config5  
-
Configuration Register 5  
00D9h-00EFh  
00F0h-00F3h  
00F4h-00F7h  
00F8h-00FBh  
00FCh-00FFh  
Reserved  
R/W  
R/W  
R
FER  
Function Event Register (Cardbus only)  
Function Event Mask Register (CardBus only)  
Function Present State Register (CardBus only)  
Function Force Event Register (CardBus only)  
FEMR  
FPSR  
FFER  
W
6.1 Receive Status Register in Rx packet header  
Bit  
15  
R/W  
R
Symbol  
MAR  
Description  
Multicast Address Received: This bit set to 1 indicates that a multicast  
packet is received.  
14  
13  
R
R
PAM  
BAR  
Physical Address Matched: This bit set to 1 indicates that the destination  
address of this packet matches the value written in ID registers.  
Broadcast Address Received: This bit set to 1 indicates that a broadcast  
packet is received. BAR, MAR bit will not be set simultaneously.  
Reserved  
12-6  
5
-
R
-
ISE  
Invalid Symbol Error: (100BASE-TX only) This bit set to 1 indicates  
that an invalid symbol was encountered during the reception of this packet.  
Runt Packet Received: This bit set to 1 indicates that the received packet  
length is smaller than 64 bytes ( i.e. media header + data + CRC < 64  
bytes )  
4
R
RUNT  
3
2
1
0
R
R
R
R
LONG  
CRC  
FAE  
Long Packet: This bit set to 1 indicates that the size of the received  
packet exceeds 4k bytes.  
CRC Error: When set, indicates that a CRC error occurred on the  
received packet.  
Frame Alignment Error: When set, indicates that a frame alignment  
error occurred on this received packet.  
ROK  
Receive OK: When set, indicates that a good packet is received.  
12  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
6.2 Transmit Status Register  
(TSD0-3)(Offset 0010h-001Fh, R/W)  
The read-only bits (CRS, TABT, OWC, CDH, NCC3-0, TOK, TUN) will be cleared by the RTL8139C(L) when the Transmit  
Byte Count (bit12-0) in the corresponding Tx descriptor is written. It is not affected when software writes to these bits. These  
registers are only permitted to write by double-word access. After a software reset, all bits except the OWN bit are reset to “0”.  
Bit  
31  
R/W  
R
Symbol  
CRS  
Description  
Carrier Sense Lost: This bit is set to 1 when the carrier is lost during  
transmission of a packet.  
30  
29  
R
R
TABT  
OWC  
Transmit Abort: This bit is set to 1 if the transmission of a packet was  
aborted. This bit is read only, writing to this bit is not affected.  
Out of Window Collision: This bit is set to 1 if the RTL8139C(L)  
encountered an "out of window" collision during the transmission of a  
packet.  
28  
R
R
CDH  
CD Heart Beat: The same as RTL8139(A/B).  
This bit is cleared in the 100 Mbps mode.  
27-24  
NCC3-0  
Number of Collision Count: Indicates the number of collisions  
encountered during the transmission of a packet.  
23-22  
21-16  
-
-
Reserved  
R/W  
ERTXTH5-0  
Early Tx Threshold: Specifies the threshold level in the Tx FIFO to  
begin the transmission. When the byte count of the data in the Tx FIFO  
reaches this level, (or the FIFO contains at least one complete packet)  
the RTL8139C(L) will transmit this packet.  
000000 = 8 bytes  
These fields count from 000001 to 111111 in unit of 32 bytes.  
This threshold must be avoided from exceeding 2K byte.  
Transmit OK: Set to 1 indicates that the transmission of a packet was  
completed successfully and no transmit underrun occurs.  
Transmit FIFO Underrun: Set to 1 if the Tx FIFO was exhausted  
during the transmission of a packet. The RTL8139C(L) can re-transfer  
data if the Tx FIFO underruns and can also transmit the packet to the  
wire successfully even though the Tx FIFO underruns. That is, when  
TSD<TUN>=1, TSD<TOK>=0 and ISR<TOK>=1 (or ISR<TER>=1).  
OWN: The RTL8139C(L) sets this bit to 1 when the Tx DMA  
operation of this descriptor was completed. The driver must set this bit  
to 0 when the Transmit Byte Count (bit0-12) is written. The default  
value is 1.  
15  
14  
R
R
TOK  
TUN  
13  
R/W  
R/W  
OWN  
SIZE  
12-0  
Descriptor Size: The total size in bytes of the data in this descriptor. If  
the packet length is more than 1792 byte (0700h), the Tx queue will be  
invalid, i.e. the next descriptor will be written only after the OWN bit of  
that long packet's descriptor has been set.  
13  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
6.3 ERSR: Early Rx Status Register  
(Offset 0036h, R)  
Bit  
7-4  
3
R/W  
Symbol  
-
Description  
-
Reserved  
R
ERGood  
Early Rx Good packet: This bit is set whenever a packet is completely  
received and the packet is good. This bit is cleared when writing 1 to it,  
Early Rx Bad packet: This bit is set whenever a packet is completely  
received and the packet is bad. Writing 1 will clear this bit.  
2
1
R
R
ERBad  
EROVW  
Early Rx OverWrite: This bit is set when the RTL8139C(L)'s local  
address pointer is equal to CAPR. In the early mode, this is different  
from buffer overflow. It happens that the RTL8139C(L) detected an Rx  
error and wanted to fill another packet data from the beginning address  
of that error packet. Writing 1 will clear this bit.  
Early Rx OK: The power-on value is 0. It is set when the Rx byte count  
of the arriving packet exceeds the Rx threshold. After the whole packet  
is received, the RTL8139C(L) will set ROK or RER in ISR and clear  
this bit simultaneously. Setting this bit will invoke a ROK interrupt.  
0
R
EROK  
6.4 Command Register  
(Offset 0037h, R/W)  
This register is used for issuing commands to the RTL8139C(L). These commands are issued by setting the corresponding bits for  
the function. A global software reset along with individual reset and enable/disable for transmitter and receiver are provided here.  
Bit  
7-5  
4
R/W  
-
R/W  
Symbol  
Description  
-
Reserved  
RST  
Reset: Setting to 1 forces the RTL8139C(L) to a software reset state  
which disables the transmitter and receiver, reinitializes the FIFOs,  
resets the system buffer pointer to the initial value (Tx buffer is at  
TSAD0, Rx buffer is empty). The values of IDR0-5 and MAR0-7 and  
PCI configuration space will have no changes. This bit is 1 during the  
reset operation, and is cleared to 0 by the RTL8139C(L) when the reset  
operation is complete.  
3
2
R/W  
R/W  
RE  
TE  
Receiver Enable: When set to 1, and the receive state machine is idle,  
the receive machine becomes active. This bit will read back as a 1  
whenever the receive state machine is active. After initial power-up,  
software must insure that the receiver has completely reset before  
setting this bit.  
Transmitter Enable: When set to 1, and the transmit state machine is  
idle, then the transmit state machine becomes active. This bit will read  
back as a 1 whenever the transmit state machine is active. After initial  
power-up, software must insure that the transmitter has completely reset  
before setting this bit.  
1
0
-
R
-
Reserved  
BUFE  
Buffer Empty: The Rx buffer is empty; There is no packet stored in the  
Rx buffer ring.  
14  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
6.5 Interrupt Mask Register  
(Offset 003Ch-003Dh, R/W)  
This register masks the interrupts that can be generated from the ISR. Writing a “1” to the bit enables the corresponding interrupt.  
During a hardware reset, all mask bits are cleared. Setting a mask bit allows the corresponding bit in the ISR to cause an interrupt.  
ISR bits are always set to 1, however, if the condition is present, regardless of the state of the corresponding mask bit.  
Bit  
15  
R/W  
R/W  
Symbol  
SERR  
Description  
System Error Interrupt: 1 => Enable, 0 => Disable.  
14  
13  
12-7  
6
R/W  
R/W  
-
TimeOut  
LenChg  
-
Time Out Interrupt: 1 => Enable, 0 => Disable.  
Cable Length Change Interrupt: 1 => Enable, 0 => Disable.  
Reserved  
R/W  
R/W  
FOVW  
Rx FIFO Overflow Interrupt: 1 => Enable, 0 => Disable.  
Packet Underrun/Link Change Interrupt: 1 => Enable, 0 =>  
Disable.  
5
PUN/LinkChg  
4
3
2
1
0
R/W  
R/W  
R/W  
R/W  
R/W  
RXOVW  
TER  
Rx Buffer Overflow Interrupt: 1 => Enable, 0 => Disable.  
Transmit Error Interrupt: 1 => Enable, 0 => Disable.  
Transmit OK Interrupt: 1 => Enable, 0 => Disable.  
Receive Error Interrupt: 1 => Enable, 0 => Disable.  
Receive OK Interrupt: 1 => Enable, 0 => Disable.  
TOK  
RER  
ROK  
6.6 Interrupt Status Register  
(Offset 003Eh-003Fh, R/W)  
This register indicates the source of an interrupt when the INTA pin goes active. Enabling the corresponding bits in the Interrupt  
Mask Register (IMR) allows bits in this register to produce an interrupt. When an interrupt is active, one of more bits in this  
register are set to a “1”. The interrupt Status Register reflects all current pending interrupts, regardless of the state of the  
corresponding mask bit in the IMR. Reading the ISR clears all interrupts. Writing to the ISR has no effect.  
Bit  
15  
R/W  
R/W  
Symbol  
SERR  
Description  
System Error: Set to 1 when the RTL8139C(L) signals a system error  
on the PCI bus.  
14  
13  
R/W  
R/W  
TimeOut  
LenChg  
Time Out: Set to 1 when the TCTR register reaches to the value of the  
TimerInt register.  
Cable Length Change: Cable length is changed after Receiver is  
enabled.  
12 - 7  
6
5
-
-
Reserved  
R/W  
R/W  
FOVW  
Rx FIFO Overflow: Set when an overflow occurs on the Rx status FIFO.  
Packet Underrun/Link Change: Set to 1 when CAPR is written but  
Rx buffer is empty, or when link status is changed.  
Rx Buffer Overflow: Set when receive (Rx) buffer ring storage  
resources have been exhausted.  
PUN/LinkChg  
4
3
2
1
R/W  
R/W  
R/W  
R/W  
RXOVW  
TER  
Transmit (Tx) Error: Indicates that a packet transmission was  
aborted, due to excessive collisions, according to the TXRR's setting  
Transmit (Tx) OK: Indicates that a packet transmission is completed  
successfully.  
Receive (Rx) Error: Indicates that a packet has either CRC error or  
frame alignment error (FAE). The collided frame will not be recognized  
as CRC error if the length of this frame is shorter than 16 byte.  
Receive (Rx) OK: In normal mode, indicates the successful completion  
of a packet reception. In early mode, indicates that the Rx byte count of  
the arriving packet exceeds the early Rx threshold.  
TOK  
RER  
0
R/W  
ROK  
15  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
6.7 Transmit Configuration Register  
(Offset 0040h-0043h, R/W)  
This register defines the Transmit Configuration for the RTL8139C(L). It controls such functions as Loopback, Heartbeat, Auto  
Transmit Padding, programmable Interframe Gap, Fill and Drain Thresholds, and maximum DMA burst size.  
Bit  
31  
30-26  
R/W  
Symbol  
-
HWVERID  
Description  
-
Reserved  
R
Hardware Version ID:  
Bit30 Bit29 Bit28 Bit27 Bit26 Bit23  
RTL8139  
RTL8139A  
RTL8139A-G  
RTL8139B  
RTL8130  
RTL8139C  
Reserved  
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
0
0
0
1
1
0
0
0
0
0
1
1
0
0
1
0
0
0
All other combination  
25-24  
R/W  
IFG1, 0  
Interframe Gap Time: This field allows adjustment of the interframe  
gap time below the standards of 9.6 us for 10Mbps, 960 ns for  
100Mbps. The time can be programmed from 9.6 us to 8.4 us (10Mbps)  
and 960ns to 840ns (100Mbps). Note that any value other than (1, 1)  
will violate the IEEE 802.3 standard.  
The formula for the inter frame gap is:  
10 Mbps  
8.4us + 0.4(IFG(1:0)) us  
840ns + 40(IFG(1:0)) ns  
100 Mbps  
23  
22-19  
18, 17  
R
-
R/W  
8139A-G  
-
LBK1, LBK0  
RTL8139A rev.G ID = 1. For others, this bit is 0.  
Reserved  
Loopback test: There will be no packet on the TX+/- lines under the  
Loopback test condition. The loopback function must be independent of  
the link state.  
00: normal operation  
01: Reserved  
10: Reserved  
11: Loopback mode  
16  
R/W  
CRC  
Append CRC:  
0: A CRC is appended at the end of a packet  
1: No CRC appended at the end of a packet  
15-11  
10-8  
-
-
Reserved  
R/W  
MXDMA2, 1, 0  
Max DMA Burst Size per Tx DMA Burst: This field sets the  
maximum size of transmit DMA data bursts according to the following  
table:  
000 = 16 bytes  
001 = 32 bytes  
010 = 64 bytes  
011 = 128 bytes  
100 = 256 bytes  
101 = 512 bytes  
110 = 1024 bytes  
111 = 2048 bytes  
16  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
7-4  
R/W  
TXRR  
Tx Retry Count: These are used to specify additional transmission  
retries in multiples of 16 (IEEE 802.3 CSMA/CD retry count). If the  
TXRR is set to 0, the transmitter will re-transmit 16 times before  
aborting due to excessive collisions. If the TXRR is set to a value  
greater than 0, the transmitter will re-transmit a number of times equal  
to the following formula before aborting:  
Total retries = 16 + (TXRR * 16)  
The TER bit in the ISR register or transmit descriptor will be set when  
the transmission fails and reaches to this specified retry count.  
Reserved  
Clear Abort: Setting this bit to 1 causes the RTL8139C(L) to  
retransmit the packet at the last transmitted descriptor when this  
transmission was aborted. Setting this bit is only permitted in the  
transmit abort state.  
3-1  
0
-
W
-
CLRABT  
6.8 Receive Configuration Register  
(Offset 0044h-0047h, R/W)  
This register is used to set the receive configuration for the RTL8139C(L). Receive properties such as accepting error packets,  
runt packets, setting the receive drain threshold etc. are controlled here.  
Bit  
R/W  
-
Symbol  
Description  
31-28  
27-24  
-
Reserved  
R/W  
ERTH3, 2, 1, 0  
Early Rx threshold bits: These bits are used to select the Rx threshold  
multiplier of the whole packet that has been transferred to the system  
buffer in early mode when the frame protocol is under the  
RTL8139C(L)'s definition.  
0000 = no early rx threshold  
0010 = 2/16  
0001 = 1/16  
0011 = 3/16  
0101 = 5/16  
0111 = 7/16  
1001 = 9/16  
1011 = 11/16  
1101 = 13/16  
1111 = 15/16  
0100 = 4/16  
0110 = 6/16  
1000 = 8/16  
1010 = 10/16  
1100 = 12/16  
1110 = 14/16  
Reserved  
23-18  
17  
-
-
R/W  
MulERINT  
Multiple early interrupt select: When this bit is set, any received  
packet invokes early interrupt according to MULINT<MISR[11:0]>  
setting in early mode. When this bit is reset, the packets of familiar  
protocol (IPX, IP, NDIS, etc) invoke early interrupt according to  
RCR<ERTH[3:0]> setting in early mode. The packets of unfamiliar  
protocol will invoke early interrupt according to the setting of  
MULINT<MISR[11:0]>.  
16  
R/W  
R/W  
RER8  
The RTL8139C(L) receives the error packet whose length is larger than  
8 bytes after setting the RER8 bit to 1.  
The RTL8139C(L) receives the error packet larger than 64-byte long  
when the RER8 bit is cleared. The power-on default is zero.  
If AER or AR is set, the RER will be set when the RTL8139C(L)  
receives an error packet whose length is larger than 8 bytes. The RER8  
is “ Don’t care “ in this situation.  
15-13  
RXFTH2, 1, 0  
Rx FIFO Threshold: Specifies Rx FIFO Threshold level. When the  
number of the received data bytes from a packet, which is being  
received into the RTL8139C(L)'s Rx FIFO, has reached to this level (or  
the FIFO has contained a complete packet), the receive PCI bus master  
function will begin to transfer the data from the FIFO to the host  
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RTL8139C(L)  
memory. This field sets the threshold level according to the following  
table:  
000 = 16 bytes  
001 = 32 bytes  
010 = 64 bytes  
011 = 128 bytes  
100 = 256 bytes  
101 = 512 bytes  
110 = 1024 bytes  
111 = no rx threshold. The RTL8139C(L) begins the transfer of data  
after having received a whole packet in the FIFO.  
12-11  
10-8  
R/W  
R/W  
RBLEN1, 0  
Rx Buffer Length: This field indicates the size of the Rx ring buffer.  
00 = 8k + 16 byte  
01 = 16k + 16 byte  
10 = 32K + 16 byte  
11 = 64K + 16 byte  
MXDMA2, 1, 0  
Max DMA Burst Size per Rx DMA Burst: This field sets the  
maximum size of the receive DMA data bursts according to the following  
table:  
000 = 16 bytes  
001 = 32 bytes  
010 = 64 bytes  
011 = 128 bytes  
100 = 256 bytes  
101 = 512 bytes  
110 = 1024 bytes  
111 = unlimited  
7
R/W  
WRAP  
0: The RTL8139C(L) will transfer the rest of the packet data into the  
beginning of the Rx buffer if this packet has not been completely  
moved into the Rx buffer and the transfer has arrived at the end of  
the Rx buffer.  
1: The RTL8139C(L) will keep moving the rest of the packet data into the  
memory immediately after the end of the Rx buffer, if this packet has  
not been completely moved into the Rx buffer and the transfer has  
arrived at the end of the Rx buffer. The software driver must reserve at  
least 1.5K bytes buffer to accept the remainder of the packet. We  
assume that the remainder of the packet is X bytes. The next packet will  
be moved into the memory from the X byte offset at the top of the Rx  
buffer.  
This bit is invalid when Rx buffer is selected to 64K bytes.  
EEPROM Select: This bit reflects what type of EEPROM is used.  
1: The EEPROM used is 9356.  
6
5
R
9356SEL  
AER  
0: The EEPROM used is 9346.  
R/W  
Accept Error Packets: This bit determines if packets with CRC error,  
alignment error and/or collided fragments will be accepted or rejected.  
0: Reject error packets  
1: Accept error packets  
4
3
R/W  
R/W  
AR  
AB  
Accept Runt Packets: This bit allows the receiver to accept packets  
that are smaller than 64 bytes. The packet must be at least 8 bytes long to  
be accepted as a runt.  
0: Reject runt packets  
1: Accept runt packets  
Accept Broadcast Packets: This bit allows the receiver to accept or  
reject broadcast packets.  
0: Reject broadcast packets  
1: Accept broadcast packets  
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RTL8139C(L)  
2
1
0
R/W  
R/W  
R/W  
AM  
APM  
AAP  
Accept Multicast Packets: This bit allows the receiver to accept or  
reject multicast packets.  
0: Reject multicast packets  
1: Accept multicast packets  
Accept Physical Match Packets: This bit allows the receiver to accept  
or reject physical match packets.  
0: Reject physical match packets  
1: Accept physical match packets  
Accept Physical Address Packets: This bit allows the receiver to  
accept or reject packets with a physical destination address.  
0: Reject packets with a physical destination address  
1: Accept packets with a physical destination address  
6.9 9346CR: 93C46 (93C56) Command Register  
(Offset 0050h, R/W)  
Bit  
7-6  
R/W  
R/W  
Symbol  
EEM1-0  
Description  
Operating Mode: These 2 bits select the RTL8139C(L) operating mode.  
EEM1  
EEM0  
Operating Mode  
0
0
Normal (RTL8139C(L) network/host communication  
mode)  
0
1
Auto-load: Entering this mode will make the  
RTL8139C(L) load the contents of 93C46 (93C56) as  
when the RSTB signal is asserted. This auto-load  
operation will take about 2 ms. After it is completed, the  
RTL8139C(L) goes back to the normal mode  
automatically (EEM1 = EEM0 = 0) and all the other  
registers are reset to default values.  
1
1
0
1
93C46 (93C56) programming: In this mode, both network  
and host bus master operations are disabled. The 93C46  
(93C56) can be directly accessed via bit3-0 which now  
reflect the states of EECS, EESK, EEDI, & EEDO pins  
respectively.  
Config register write enable: Before writing to CONFIG0,  
1, 3, 4 registers, and bit13, 12, 8 of BMCR(offset  
62h-63h), the RTL8139C(L) must be placed in this mode.  
This will prevent RTL8139C(L)'s configurations from  
accidental change.  
4-5  
3
-
-
Reserved  
R/W  
R/W  
R/W  
R
EECS  
EESK  
EEDI  
EEDO  
These bits reflect the state of EECS, EESK, EEDI & EEDO pins in  
auto-load or 93C46 (93C56) programming mode and are valid only  
when Flash bit is cleared.  
2
1
0
Note: EESK, EEDI and EEDO is valid after boot ROM complete.  
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RTL8139C(L)  
6.10 CONFIG 0: Configuration Register 0  
(Offset 0051h, R/W)  
Bit  
7
R/W  
R
Symbol  
SCR  
Description  
Scrambler Mode: Always 0.  
PCS Mode: Always 0.  
6
5
R
PCS  
R
T10  
10 Mbps Mode: Always 0.  
4-3  
2-0  
R
PL1, PL0  
BS2, BS1, BS0  
Select 10 Mbps medium type: Always (PL1, PL0) = (1, 0)  
R
Select Boot ROM size  
BS2  
0
BS1  
0
BS0  
0
Description  
No Boot ROM  
0
0
0
1
1
1
0
1
1
0
0
1
1
0
1
0
1
0
8K Boot ROM  
16K Boot ROM  
32K Boot ROM  
64K Boot ROM  
128K Boot ROM  
unused  
1
1
1
unused  
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RTL8139C(L)  
6.11 CONFIG 1: Configuration Register 1  
(Offset 0052h, R/W)  
Bit  
7-6  
5
R/W  
R/W  
R/W  
Symbol  
LEDS1-0  
Description  
Refer to LED PIN definition. These bits’ initial value come from 93C46/93C56.  
Driver Load: Software may use this bit to make sure that the driver has been  
loaded. Writing 1 is 1. Writing 0 is 0. When the command register bits IOEN,  
MEMEN, and BMEN of the PCI configuration space are written, the  
RTL8139C(L) will clear this bit automatically.  
DVRLOAD  
4
R/W  
LWACT  
LWAKE active mode: The LWACT bit and LWPTN bit in the CONFIG4  
register are used to program the LWAKE pin’s output signal. According to the  
combination of these two bits, there may be 4 choices of LWAKE signal, i.e.,  
active high, active low, positive (high) pulse, and negative (low) pulse. The  
output pulse width is about 150 ms. In CardBus applications, the LWACT and  
LWPTN have no meaning.  
The default value of each of these two bits is 0, i.e., the default output signal of  
the LWAKE pin is an active high signal.  
LWAKE output  
LWACT  
0
1
0
Active high*  
Active low  
LWPTN  
1
Positive pulse  
Negative pulse  
* Default value.  
3
2
1
R
R
MEMMAP  
IOMAP  
VPD  
Memory Mapping: The operational registers are mapped into PCI memory space.  
I/O Mapping: The operational registers are mapped into PCI I/O space.  
Vital Product Data: This is used to set to enable Vital Product Data. The VPD  
data is stored in 93C46 or 93C56 from within offset 40h-7Fh.  
Power Management Enable:  
R/W  
0
R/W  
PMEn  
Write able only when 93C46CR register EEM1=EEM0=1  
Let A denote the New_Cap bit (bit 4 of the Status Register) in the PCI  
Configuration space offset 06H.  
Let B denote the Cap_Ptr register in the PCI Configuration space offset 34H.  
Let C denote the Cap_ID (power management) register in the PCI Configuration  
space offset 50H.  
Let D denote the power management registers in the PCI Configuration space  
offset from 52H to 57H.  
Let E denote the Next_Ptr (power management) register in the PCI  
Configuration space offset 51H.  
PMEn Description  
0
1
A=B=C=E=0, D not valid  
A=1, B=50h, C=01h, D valid, E=0  
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RTL8139C(L)  
6.12 Media Status Register  
(Offset 0058h, R/W)  
This register allows configuration of a variety of device and PHY options, and provides PHY status information.  
Bit  
7
R/W  
R/W  
Symbol  
TXFCE/  
Description  
Tx Flow Control Enable: The flow control is valid in full-duplex  
LdTXFCE  
mode only. This register’s default value comes from 93C46 (93C56).  
RTL8139C(L)  
ANE = 1  
Remote  
NWAY FLY mode  
NWAY mode only  
No NWAY  
TXFCE/LdTXFCE  
R/O  
R/W  
R/W  
R/W  
ANE = 1  
ANE = 1  
ANE = 0 &  
full-duplex mode  
ANE = 0 &  
half-duplex mode  
-
-
invalid  
NWAY FLY mode: NWAY with flow control capability  
NWAY mode only: NWAY without flow control capability  
RX Flow control Enable: The flow control is enabled in full-duplex  
mode only. The default value comes from 93C46 (93C56).  
Reserved  
6
R/W  
RXFCE  
5
4
-
R
-
Aux_Status  
Aux. Power present Status:  
1: The Aux. Power is present.  
0: The Aux. Power is absent.  
The value of this bit is fixed after each PCI reset.  
Speed: Set, when current media is 10 Mbps mode. Reset, when current  
media is 100 Mbps mode.  
3
R
SPEED_10  
2
1
R
R
LINKB  
TXPF  
Inverse of Link status: 0 = Link OK. 1 = Link Fail.  
Transmit Pause Flag: Set when the RTL8139C(L) sends pause packet.  
Reset when the RTL8139C(L) sends timer done packet.  
Receive Pause Flag: Set when the RTL8139C(L) is in backoff state  
because a pause packet received. Reset when pause state is clear.  
0
R
RXPF  
6.13 CONFIG 3: Configuration Register3  
(Offset 0059h, R/W)  
Bit  
R/W  
Symbol  
Description  
7
R
GNTSel  
Gnt Select: Select the Frame’s asserted time after the Grant signal has  
been asserted. The Frame and Grant are the PCI signals.  
1: Delay one clock from GNT assertion  
0: No delay  
6
R/W  
PARM_En  
Parameter Enable: (These parameters are used in 100Mbps mode)  
Setting to 0 and 9346CR register EEM1=EEM0=1 enable the  
PHY1_PARM, PHY2_PARM, TW_PARM be written via software.  
Setting to 1 will allow parameters auto-loaded from 93C46 (93C56)  
and disable writing to PHY1_PARM, PHY2_PARM and TW_PARM  
registers via software. The PHY1_PARM, PHY2_PARM, and  
TW_PARM can be auto-loaded from EEPROM in this mode. The  
parameter auto-load process is executed every time when the Link is  
OK in 100Mbps mode.  
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RTL8139C(L)  
5
R/W  
Magic  
Magic Packet: This bit is valid when the PWEn bit of CONFIG1  
register is set. The RTL8139C(L) will assert the PMEB signal to  
wakeup the operating system when the Magic Packet is received.  
Once the RTL8139C(L) has been enabled for Magic Packet wakeup  
and has been put into adequate state, it scans all incoming packets  
addressed to the node for a specific data sequence, which indicates to  
the controller that this is a Magic Packet frame. A Magic Packet frame  
must also meet the basic requirements: Destination address + Source  
address + data + CRC  
The destination address may be the node ID of the receiving station or  
a multicast address, which includes the broadcast address.  
The specific sequence consists of 16 duplications of 6 byte ID registers,  
with no breaks or interrupts. This sequence can be located anywhere  
within the packet, but must be preceded by a synchronization stream, 6  
bytes of FFh. The device will also accept a multicast address, as long as the  
16 duplications of the IEEE address match the address of the ID registers.  
If the Node ID is 11h 22h 33h 44h 55h 66h, then the magic frame’s  
format is like the following:  
Destination address + source address + MISC + FF FF FF FF FF FF +  
MISC + 11 22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66 +  
11 22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33  
44 55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66  
+ 11 22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33  
44 55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66 + MISC + CRC  
Link Up: This bit is valid when the PWEn bit of CONFIG1 register is  
set. The RTL8139C(L), in adequate power state, will assert the PMEB  
signal to wakeup the operating system when the cable connection is  
re-established.  
4
R/W  
LinkUp  
3
2
R
R
CardB_En  
Card Bus Enable: Set to 1 to enable CardBus related registers and  
functions. Set to 0 to disable CardBus related registers and functions.  
CLKRUN Enable:  
CLKRUN_En  
Set to 1 to enable CLKRUN.  
Set to 0 to disable CLKRUN.  
1
R
FuncRegEn  
Functions Registers Enable (CardBus only): Set to 1 to enable the 4  
Function Registers (Function Event Register, Function Event Mask  
Register, Function Present State Register, and Function Force Event  
Register) for CardBus application.  
Set to 0 to disable the 4 Function Registers for CardBus application.  
Fast Back to Back Enable: Set to 1 to enable Fast Back to Back.  
0
R
FBtBEn  
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RTL8139C(L)  
5.14 CONFIG 4: Configuration Register4  
(Offset 005Ah, R/W)  
Bit  
R/W  
Symbol  
Description  
7
R/W  
RxFIFOAutoClr  
When set to 1, the RTL8139C(L) will clear the Rx FIFO overflow  
automatically.  
6
5
R/W  
R/W  
AnaOff  
Analog Power Off: This bit can not be auto-loaded from EEPROM  
(9346 or 9356).  
1: Turn off the analog power of the RTL8139C(L) internally.  
0: Normal working state. This is also power-on default value.  
Long Wake-up Frame: The initial value comes from EEPROM  
autoload.  
LongWF  
Set to 1: The RTL8139C(L) supports up to 5 wake-up frames, each  
with 16-bit CRC algorithm for MS Wakeup Frame, the low byte of  
16-bit CRC should be placed at the correspondent CRC register, and  
the high byte of 16-bit CRC should be placed at the correspondent  
LSBCRC register. The wake-up frame 0 and 1 are the same as above,  
except that the masked bytes start from offset 0 to 63. The wake-up  
frame 2 and 3 are merged into one long wake-up frame respectively  
with masked bytes selected from offset 0 to 127. The wake-up frame 4  
and 5, 6 and 7 are merged respectively into another 2 long wake-up  
frames. Please refer to 7.4 PCI Power Management functions for a  
detailed description.  
Set to 0: The RTL8139C(L) supports up to 8 wake-up frames, each  
with masked bytes selected from offset 12 to 75.  
LANWAKE vs. PMEB:  
4
R/W  
LWPME  
Set to 1: The LWAKE can only be asserted when the PMEB is asserted  
and the ISOLATEB is low.  
Set to 0: The LWAKE and PMEB are asserted at the same time.  
In CardBus application, this bit has no meaning.  
Reserved  
3
2
1
0
-
-
R/W  
-
LWPTN  
-
LWAKE pattern: Please refer to LWACT bit in CONFIG1 register.  
Reserved  
R/W  
PBWakeup  
Pre-Boot Wakeup: The initial value comes from EEPROM autoload.  
1: Pre-Boot Wakeup disabled. (suitable for CardBus and MiniPCI  
application)  
0: Pre-Boot Wakeup enabled.  
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RTL8139C(L)  
6.15 Multiple Interrupt Select Register  
(Offset 005Ch-005Dh, R/W)  
If the received packet data is not a familiar protocol (IPX, IP, NDIS, etc.) to RTL8139C(L), RCR<ERTH[3:0]> will not be used  
to transfer data in early mode. This register will be written to the received data length in order to make an early Rx interrupt for  
the unfamiliar protocol.  
Bit  
R/W  
-
Symbol  
-
Description  
15-12  
11-0  
Reserved  
R/W  
MISR11-0  
Multiple Interrupt Select: Indicates that the RTL8139C(L) makes an  
Rx interrupt after RTL8139C(L) has transferred the byte data into the  
system memory. If the value of these bits is zero, there will be no early  
interrupt as soon as the RTL8139C(L) prepares to execute the first PCI  
transaction of the received data. Bit1, 0 must be zero.  
The ERTH3-0 bits should not be set to 0 when the multiple interrupt  
select register is used.  
The above is true when MulERINT=0 (bit17, RCR). When MulERINT=1, any received packet invokes early interrupt  
according to MISR[11:0] setting in early mode.  
6.16 PCI Revision ID  
(Offset 005Eh, R)  
Bit  
R/W  
Symbol  
Description  
7-0  
R
Revision ID  
The value in PCI Configuration Space offset 08h is 10h.  
6.17 TransmitStatusofAllDescriptors(TSAD)Register  
(Offset 0060h-0061h, R/W)  
Bit  
15  
14  
13  
12  
11  
10  
9
R/W  
R
Symbol  
TOK3  
TOK2  
TOK1  
TOK0  
TUN3  
TUN2  
TUN1  
TUN0  
TABT3  
TABT2  
TABT1  
TABT0  
OWN3  
OWN2  
OWN1  
OWN0  
Description  
TOK bit of Descriptor 3  
TOK bit of Descriptor 2  
TOK bit of Descriptor 1  
TOK bit of Descriptor 0  
TUN bit of Descriptor 3  
TUN bit of Descriptor 2  
TUN bit of Descriptor 1  
TUN bit of Descriptor 0  
TABT bit of Descriptor 3  
TABT bit of Descriptor 2  
TABT bit of Descriptor 1  
TABT bit of Descriptor 0  
OWN bit of Descriptor 3  
OWN bit of Descriptor 2  
OWN bit of Descriptor 1  
OWN bit of Descriptor 0  
R
R
R
R
R
R
8
R
7
R
6
R
5
R
4
R
3
R
2
R
1
R
0
R
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RTL8139C(L)  
6.18 Basic Mode Control Register  
(Offset 0062h-0063h, R/W)  
Bit  
Name  
Reset  
Description/Usage  
Default/  
Attribute  
0, RW  
15  
This bit sets the status and control registers of the PHY(register  
0062-0074H) in a default state. This bit is self-clearing. 1 = software  
reset; 0 = normal operation.  
14  
13  
Reserved  
-
-
This bit sets the network speed. 1 = 100Mbps; 0 = 10Mbps. This bit‘s  
initial value comes from 93C46 (93C56).  
0, RW  
Spd_Set  
12  
This bit enables/disables the NWay auto-negotiation function. Set to  
1 to enable auto-negotiation, bit13 will be ignored.  
Set to 0 disables auto-negotiation, bit13 and bit8 will determine the  
link speed and the data transfer mode, respectively. This bit‘s initial  
value comes from 93C46 (93C56).  
0, RW  
Auto Negotiation  
Enable  
(ANE)  
11-10  
9
Reserved  
-
-
This bit allows the NWay auto-negotiation function to be reset.  
1 = re-start auto-negotiation; 0 = normal operation.  
This bit sets the duplex mode. 1 = full-duplex; 0 = normal operation.  
This bit‘s initial value comes from 93C46 (93C56).  
If bit12 = 1, read = status write = register value.  
If bit12 = 0, read = write = register value.  
0, RW  
Restart Auto  
Negotiation  
Duplex Mode  
8
0, RW  
7-0  
Reserved  
-
-
6.19 Basic Mode Status Register  
(Offset 0064h-0065h, R)  
Bit  
15  
14  
Name  
Description/Usage  
1 = enable 100Base-T4 support; 0 = suppress 100Base-T4 support.  
1 = enable 100Base-TX full duplex support;  
0 = suppress 100Base-TX full duplex support.  
1 = enable 100Base-TX half-duplex support;  
0 = suppress 100Base-TX half-duplex support.  
1 = enable 10Base-T full duplex support;  
0 = suppress 10Base-T full duplex support.  
1 = enable 10Base-T half-duplex support;  
0 = suppress 10Base-T half-duplex support.  
Reserved  
Default/ Attribute  
0, RO  
100Base-T4  
100Base_TX_ FD  
1, RO  
13  
12  
11  
1, RO  
1, RO  
1, RO  
100BASE_TX_H  
D
10Base_T_FD  
10_Base_T_HD  
10-6  
5
-
-
1 = auto-negotiation process completed;  
0 = auto-negotiation process not completed.  
1 = remote fault condition detected (cleared on read);  
0 = no remote fault condition detected.  
1 = Link had not been experienced fail state.  
0 = Link had been experienced fail state  
1 = valid link established;  
0, RO  
Auto Negotiation  
Complete  
4
3
2
0, RO  
1, RD  
0, RO  
Remote Fault  
Auto Negotiation  
Link Status  
0 = no valid link established.  
1
0
1 = jabber condition detected; 0 = no jabber condition detected.  
1 = extended register capability;  
0, RO  
1, RO  
Jabber Detect  
Extended  
0 = basic register capability only.  
Capability  
26  
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RTL8139C(L)  
6.20 Auto-negotiation Advertisement Register  
(Offset 0066h-0067h, R/W)  
Bit  
Name  
NP  
Description/Usage  
Default/ Attribute  
15  
Next Page bit.  
0, RO  
1 = transmitting the protocol specific data page;  
0 = transmitting the primary capability data page  
1 = acknowledge reception of link partner capability data word.  
1 = advertise remote fault detection capability;  
0 = do not advertise remote fault detection capability.  
Reserved  
14  
13  
0, RO  
0, RW  
ACK  
RF  
12-11  
10  
-
-
1 = flow control is supported by local node.  
0 = flow control is not supported by local mode.  
The default value  
comes from  
EEPROM, RO  
0, RO  
Pause  
9
8
1 = 100Base-T4 is supported by local node;  
0 = 100Base-T4 not supported by local node.  
1 = 100Base-TX full duplex is supported by local node;  
0 = 100Base-TX full duplex not supported by local node.  
1 = 100Base-TX is supported by local node;  
0 = 100Base-TX not supported by local node.  
1 = 10Base-T full duplex supported by local node;  
0 = 10Base-T full duplex not supported by local node.  
1 = 10Base-T is supported by local node;  
T4  
TXFD  
TX  
1, RW  
1, RW  
7
6
1, RW  
10FD  
10  
5
1, RW  
0 = 10Base-T not supported by local node.  
4-0  
Binary encoded selector supported by this node. Currently only  
CSMA/ CD <00001> is specified. No other protocols are  
supported.  
<00001>, RW  
Selector  
6.21 Auto-NegotiationLinkPartnerAbility Register  
(Offset 0068h-0069h, R)  
Bit  
Name  
NP  
Description/Usage  
Default/ Attribute  
15  
Next Page bit.  
0, RO  
1 = transmitting the protocol specific data page;  
0 = transmitting the primary capability data page  
1 = link partner acknowledges reception of local node’s capability  
data word.  
14  
0, RO  
ACK  
13  
12-11  
10  
1 = link partner is indicating a remote fault.  
Reserved  
0, RO  
-
0, RO  
RF  
-
Pause  
1 = Flow control is supported by link partner,  
0 = Flow control is not supported by link partner.  
1 = 100Base-T4 is supported by link partner;  
0 = 100Base-T4 not supported by link partner.  
1 = 100Base-TX full duplex is supported by link partner;  
0 = 100Base-TX full duplex not supported by link partner.  
1 = 100Base-TX is supported by link partner;  
0 = 100Base-TX not supported by link partner.  
1 = 10Base-T full duplex is supported by link partner;  
0 = 10Base-T full duplex not supported by link partner.  
1 = 10Base-T is supported by link partner;  
0 = 10Base-T not supported by link partner.  
Link Partner's binary encoded node selector. Currently only  
CSMA/ CD <00001> is specified.  
9
8
0, RO  
0, RO  
T4  
TXFD  
TX  
7
0, RO  
6
0, RO  
10FD  
10  
5
0, RO  
4-0  
<00000>, RO  
Selector  
27  
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RTL8139C(L)  
6.22 Auto-negotiation Expansion Register  
(Offset 006Ah-006Bh, R)  
This register contains additional status for NWay auto-negotiation.  
Bit  
15-5  
4
Name  
-
Description/Usage  
Default/ Attribute  
Reserved. These bits are always set to 0.  
-
Status indicating if a multiple link fault has occurred.  
1 = fault occurred; 0 = no fault occurred.  
0, RO  
MLF  
3
2
1
Status indicating if the link partner supports Next Page negotiation.  
1 = supported; 0 = not supported.  
0, RO  
0, RO  
0, RO  
LP_NP_ABLE  
NP_ABLE  
This bit indicates if the local node is able to send additional Next  
Pages.  
This bit is set when a new Link Code Word Page has been received.  
The bit is automatically cleared when the auto-negotiation link  
partner’s ability register (register 5) is read by management.  
1 = link partner supports NWay auto-negotiation.  
PAGE_RX  
0
0, RO  
LP_NW_ABLE  
6.23 Disconnect Counter  
(Offset 006Ch-006Dh, R)  
Bit  
Name  
Description/Usage  
Default/ Attribute  
15-0  
This 16-bit counter increments by 1 for every disconnect event. It rolls  
over when becomes full. It is cleared to zero by read command.  
h'[0000],  
R
DCNT  
6.24 False Carrier Sense Counter  
(Offset 006Eh-006Fh, R)  
This counter provides information required to implement the “False Carriers” attribute within the MAU managed object class of  
Clause 30 of the IEEE 802.3u specification.  
Bit  
15-0  
Name  
FCSCNT  
Description/Usage  
This 16-bit counter increments by 1 for each false carrier event. It is  
cleared to zero by read command.  
Default/ Attribute  
h'[0000],  
R
6.25 NWay Test Register  
(Offset 0070h-0071h, R/W)  
Bit  
15-8  
7
Name  
-
Description/Usage  
Default/ Attribute  
Reserved  
-
1 = set NWay to loopback mode.  
0, RW  
-
0, RW  
0, RO  
0, RO  
0, RO  
NWLPBK  
-
ENNWLE  
FLAGABD  
FLAGPDF  
FLAGLSC  
6-4  
3
Reserved  
1 = LED0 Pin indicates linkpulse  
1 = Auto-neg experienced ability detect state  
1 = Auto-neg experienced parallel detection fault state  
1 = Auto-neg experienced link status check state  
2
1
0
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RTL8139C(L)  
6.26 RX_ER Counter  
(Offset 0072h-0073h, R)  
Bit  
Name  
Description/Usage  
Default/ Attribute  
15-0  
This 16-bit counter increments by 1 for each valid packet received.  
It is cleared to zero by read command.  
h'[0000],  
R
RXERCNT  
6.27 CS Configuration Register  
(Offset 0074h-0075h, R/W)  
Bit  
15  
Name  
Testfun  
-
Description/Usage  
Default/ Attribute  
1 = Auto-neg speeds up internal timer  
0,WO  
-
14-10  
9
Reserved  
Active low TPI link disable signal. When low, TPI still transmits  
link pulses and TPI stays in good link state.  
1 = HEART BEAT enable, 0 = HEART BEAT disable. HEART  
BEAT function is only valid in 10Mbps mode.  
1 = enable jabber function. 0 = disable jabber function  
Used to login force good link in 100Mbps for diagnostic purposes.  
1 = DISABLE, 0 = ENABLE.  
1, RW  
LD  
8
1, RW  
HEART BEAT  
7
6
1, RW  
1, RW  
JBEN  
F_LINK_100  
5
4
3
Assertion of this bit forces the disconnect function to be bypassed.  
Reserved  
0, RW  
-
0, RO  
F_Connect  
-
Con_status  
This bit indicates the status of the connection. 1 = valid connected  
link detected; 0 = disconnected link detected.  
Assertion of this bit configures LED1 pin to indicate connection  
status.  
2
0, RW  
Con_status_En  
1
0
Reserved  
-
-
Bypass Scramble  
0, RW  
PASS_SCR  
6.28 Flash Memory Read/Write Register  
(Offset 00D4h-00D7h, R/W)  
Bit  
R/W  
Symbol  
Description  
31-24  
R/W  
MD7-MD0  
Flash Memory Data Bus: These bits set and reflect the state of the  
MD7 - MD0 pins, during write and read process respectively.  
Reserved  
Chip Select: This bit sets the state of the ROMCSB pin.  
Output Enable: This bit sets the state of the OEB pin.  
Write Enable: This bit sets the state of the WEB pin.  
Enable software access to flash memory:  
23-21  
20  
19  
18  
-
-
W
W
W
W
ROMCSB  
OEB  
WEB  
17  
SWRWEn  
0: Disable read/write access to flash memory via software.  
1: Enable read/write access to flash memory via software and disable  
the EEPROM access during flash memory access via software.  
Flash Memory Address Bus: These bits set the state of the MA16-0  
pins.  
16-0  
W
MA16-MA0  
29  
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RTL8139C(L)  
6.29 Config5: Configuration Register 5  
(Offset 00D8h, R/W)  
This register, unlike other Config registers, is not protected by the 93C46 Command register. Therefore, there is no need to  
enable Config register write prior to writing to Config5.  
Bit  
7
R/W  
-
Symbol  
-
Description  
Reserved  
6
R/W  
BWF  
Broadcast Wakeup Frame:  
0: Default value. Disable Broadcast Wakeup Frame with mask bytes  
of only DID field = FF FF FF FF FF FF.  
1: Enable Broadcast Wakeup Frame with mask bytes of only DID  
field = FF FF FF FF FF FF.  
The power-on default value of this bit is 0.  
5
4
3
R/W  
R/W  
R/W  
MWF  
UWF  
Mroadcast Wakeup Frame:  
0: Default value. Disable Multicast Wakeup Frame with mask bytes  
of only DID field, which is a multicast address.  
1: Enable Multicast Wakeup Frame with mask bytes of only DID  
field, which is a multicast address.  
The power-on default value of this bit is 0.  
Unicast Wakeup Frame:  
0: Default value. Disable Unicast Wakeup Frame with mask bytes of  
only DID field, which is its own physical address.  
1: Enable Unicast Wakeup Frame with mask bytes of only DID field,  
which is its own physical address.  
The power-on default value of this bit is 0.  
FIFOAddrPtr  
FIFO Address Pointer: (Realtek internal use only to test FIFO SRAM)  
0: (Power-on) default value. Both Rx and Tx FIFO address pointers  
are updated in ascending way from 0 and upwards. The initial FIFO  
address pointer is 0.  
1: Both Rx and Tx FIFO address pointers are updated in descending  
way from 1FFh and downwards. The initial FIFO address pointer is  
1FFh.  
Note: This bit does not participate in EEPROM auto-load. The FIFO  
address pointers can not be reset, except initial power-on.  
The power-on default value of this bit is 0.  
2
R/W  
LDPS  
Link Down Power Saving mode: When cable is disconnected (Link  
Down), the analog part will power down itself (PHY Tx part & part of  
twister) automatically. However, the PHY Rx part and part of twister  
to monitor SD signal will not, in case the cable is re-connected and  
Link should be established again.  
1: Disable.  
0: Enable.  
1
0
R/W  
R/W  
LANWake  
PME_STS  
LANWake signal enable/disable:  
1: Enable LANWake signal.  
0: Disable LANWake signal.  
PME_Status bit: Always sticky/can be reset by PCI RST# and  
software.  
1: The PME_Status bit can be reset by PCI reset or by software.  
0: The PME_Status bit can only be reset by software.  
Config5 register, offset D8h: (SYM_ERR register is changed to Config5, the function of SYM_ERR register is no longer  
supported by RTL8139C.)  
The 3 bits (bit2-0) are auto-loaded from EEPROM Config5 byte to RTL8139C Config5 register.  
30  
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RTL8139C(L)  
6.30 Function Event Register  
(Offset 00F0h-00F3h, R/W)  
Bit  
31-16  
15  
R/W  
-
Symbol  
-
Description  
Reserved  
R/W  
INTR  
Interrupt: This bit is set to 1 when INTR field in the Function Force  
Event Register is set. Writing a 1 may clear this bit. Writing a 0 has no  
effect. This bit is not affected by the RST# pin and software reset.  
Reserved  
General Wakeup: This bit is set to 1 when the GWAKE field in the  
Function Present State Register changes its state from 0 to 1. This bit  
can also be set when the GWAKE bit of the Function Force Register is  
set. Writing a 1 may clear this bit. Writing a 0 has no effect. This bit is  
not affected by the RST# pin.  
14-5  
4
-
-
R/W  
GWAKE  
3-0  
-
-
Reserved  
This register is valid only when Card_En=1 (bit3, Config3) and FuncRegEn=1 (bit1, Config3).  
The Function Event (Offset F0h), Function Event Mask (Offset F4h), Function Present State (Offset F8h), and Function  
Force Event (Offset FCh) registers have some corresponding fields with the same names. The GWAKE and INTR bits  
of these registers reflect the wake-up event signaled on the SCTCSCHG pin. The operation of CSTCSCHG pin is similar  
to PME# pin except that the CSTCSCHG pin is asserted high.  
6.31 Function Event Mask Register  
(Offset 00F4h-00F7h, R/W)  
Bit  
31-16  
15  
R/W  
-
Symbol  
-
Description  
Reserved  
R/W  
INTR  
Interrupt mask: When cleared (0), setting of the INTR bit in either  
the Function Present State Register or the Function Event Register  
will neither cause assertion of the INT# signal while the CardBus PC  
Card interface is powered up, nor the system Wakeup (CSTSCHG)  
while the interface is powered off. Setting this bit to 1, enables the  
INTR bit in both the Function Present State Register and the Function  
Event Register to generate the INT# signal (and the system Wakeup if  
the corresponding WKUP field in this Function Event Mask Register  
is also set). This bit is not affected by the RST# pin.  
14  
R/W  
WKUP  
Wakeup mask: When cleared (0), the Wakeup function is disabled, i.e.,  
the setting of this bit in the Function Event Register will not assert the  
CSTSCHG signal. Setting this bit to 1, enables the fields in the  
Function Event Register to assert the CSTSCHG signal. This bit is not  
affected by RST#.  
13-5  
4
-
-
Reserved  
R/W  
GWAKE  
General Wakeup mask: When cleared (0), setting this bit in the  
Function Event Register will not cause the CSTSCHG pin to be  
asserted. Setting this bit to 1, enables the GWAKE field in the  
Function Event Register to assert CSTSCHG pin if bit14 of this  
register is also set. This bit is not affected by RST#.  
3-0  
-
-
Reserved  
This register is valid only when Card_En=1 (bit3, Config3) and FuncRegEn=1 (bit1, Config3).  
31  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
6.32 Function Present State Register  
(Offset 00F8h-00FBh, R)  
Bit  
31-16  
15  
R/W  
Symbol  
-
Description  
-
Reserved  
R
INTR  
Interrupt: This bit is set when one of the ISR register bits has been set  
to 1. This bit remains set (1), until all of the ISR register bits have been  
cleared. It is not affected by RST#.  
14-5  
4
-
R
-
Reserved  
GWAKE  
General Wakeup: This bit reflects the current state of the Wakeup  
event(s), it’s just like the PME_Status bit of the PMCSR register. This  
bit remains set (1), until the PME_Status bit of the PMCSR register is  
cleared. It is not affected by RST#.  
3-0  
-
-
Reserved  
This register is valid only when Card_En=1 (bit3, Config3) and FuncRegEn=1 (bit1, Config3).  
This read-only register reflects the current state of the function.  
6.33 Function Force Event Register  
(Offset 00FCh-00FFh, W)  
Bit  
31-16  
15  
R/W  
-
Symbol  
-
Description  
Reserved  
W
INTR  
Interrupt: Writing a 1 sets the INTR bit in the Function Event  
Register. However, the INTR bit in the Function Present State  
Register is not affected and continues to reflect the current state of the  
ISR register. Writing a 0 to this bit has no effect.  
14-5  
4
-
-
Reserved  
W
GWAKE  
General Wakeup: Setting this bit to 1, sets the GWAKE bit in the  
Function Event Register. However, the GWAKE bit in the Function  
Present State Register is not affected and continues to reflect the current  
state of the Wakeup request. Writing a 0 to this bit has no effect.  
Reserved  
3-0  
-
-
This register is valid only when Card_En=1 (bit3, Config3) and FuncRegEn=1 (bit1, Config3).  
32  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
7. EEPROM Contents  
(93C46 or 93C56)  
The 93C46 is a 1K-bit EEPROM (the 93C56 is a 2K-bit EEPROM). Although it is actually addressed by words, its contents are  
listed below by bytes for convenience. After the valid duration of the RSTB pin or auto-load command in 9346CR, the  
RTL8139C(L) performs a series of EEPROM read operations from the 93C46 (93C56) address 00H to 31H.  
It is suggested to obtain Realtek approval before changing the default settings of the EEPROM.  
Bytes  
00h  
Contents  
29h  
Description  
These 2 bytes contain the ID code word for the RTL8139C(L). The RTL8139C(L) will  
load the contents of the EEPROM into the corresponding location if the ID word (8129h)  
is correct, otherwise, the Vendor ID and Device ID of the PCI configuration space are  
hex 10EC and 8129 respectively.  
01h  
81h  
02h-03h  
04h-05h  
06h-07h  
08h-09h  
0Ah  
0Bh  
0Ch  
VID  
DID  
PCI Vendor ID, PCI configuration space offset 00h-01h.  
PCI Device ID, PCI configuration space offset 02h-03h.  
SVID  
PCI Subsystem Vendor ID, PCI configuration space offset 2Ch-2Dh.  
PCI Subsystem ID, PCI configuration space offset 2Eh-2Fh.  
SMID  
MNGNT  
MXLAT  
MSRBMCR  
PCI Minimum Grant Timer, PCI configuration space offset 3Eh.  
PCI Maximum Latency Timer, PCI configuration space offset 3Fh.  
Bits 7-6 map to bits 7-6 of the Media Status register (MSR); Bits 5, 4, 0 map to bits 13,  
12, 8 of the Basic Mode Control register (BMCR); Bits 3-2 are reserved. If the network  
speed is set to Auto-Detect mode (i.e. Nway mode), then Bit 1=0 means the local  
RTL8139C(L) supports flow control (IEEE 802.3x). In this case, Bit 10=1 in the  
Auto-negotiation Advertisement Register (offset 66h-67h). Bit 1=1 means the local  
RTL8139C(L) does not support flow control. In this case, Bit 10=0 in Auto-negotiation  
Advertisement. This is because there are Nway switch hubs which keep sending flow  
control pause packets for no reason, if the link partner supports Nway flow control.  
RTL8139C(L) Configuration register 3, operational register offset 59H.  
After auto-load command or hardware reset, the RTL8139C(L) loads the Ethernet ID to  
IDR0-IDR5 of the RTL8139C(L)'s I/O registers.  
0Dh  
0Eh-13h  
CONFIG3  
Ethernet ID  
14h  
15h  
16h-17h  
CONFIG0  
CONFIG1  
PMC  
RTL8139C(L) Configuration register 0, operational registers offset 51h.  
RTL8139C(L) Configuration register 1, operational registers offset 52h.  
Reserved. Do not change this field without Realtek approval.  
Power Management Capabilities. PCI configuration space address 52h and 53h.  
Reserved. Do not change this field without Realtek approval.  
18h  
19h  
-
CONFIG4  
Reserved. Do not change this field without Realtek approval.  
RTL8139C(L) Configuration register 4, operational registers offset 5Ah.  
1Ah-1Dh  
PHY1_PARM_U Reserved. Do not change this field without Realtek approval.  
PHY Parameter 1-U for RTL8139C. Operational registers of the RTL8139C(L) are from  
78h to 7Bh.  
1Eh  
PHY2_PARM_U Reserved. Do not change this field without Realtek approval.  
PHY Parameter 2-U for RTL8139C. Operational register of the RTL8139C(L) is 80h.  
33  
2002/01/10  
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RTL8139C(L)  
1Fh  
CONFIG_5  
Do not change this field without Realtek approval.  
Bit7-3: Reserved.  
Bit2: Link Down Power Saving mode:  
Set to 1: Disable.  
Set to 0: Enable. When cable is disconnected(Link Down), the analog part will power  
down itself (PHY Tx part & part of twister) automatically except PHY Rx part and  
part of twister to monitor SD signal in case that cable is re-connected and Link should  
be established again.  
Bit1: LANWake signal Enable/Disable  
Set to 1: Enable LANWake signal.  
Set to 0: Disable LANWake signal.  
Bit0: PME_Status bit property  
Set to 1: The PME_Status bit can be reset by PCI reset or by software if  
D3cold_support_PME is 0. If D3cold_support_PME=1, the PME_Status bit is a  
sticky bit.  
Set to 0: The PME_Status bit is always a sticky bit and can only be reset by software.  
20h-23h  
24h-27h  
28h-2Bh  
2Ch  
TW_PARM_U  
TW_PARM_T  
Reserved. Do not change this field without Realtek approval.  
Twister Parameter U for RTL8139C. Operational registers of the RTL8139C(L) are  
7Ch-7Fh.  
Reserved. Do not change this field without Realtek approval.  
Twister Parameter T for RTL8139C. Operational registers of the RTL8139C(L) are  
7Ch-7Fh.  
PHY1_PARM_T Reserved. Do not change this field without Realtek approval.  
PHY Parameter 1-T for RTL8139C. Operational registers of the RTL8139C(L) are from  
78h to 7Bh.  
PHY2_PARM_T Reserved. Do not change this field without Realtek approval.  
PHY Parameter 2-T for RTL8139C. Operational register of the RTL8139C(L) is 80h.  
2Dh-2Fh  
30h-31h  
-
Reserved.  
CISPointer  
Reserved. Do not change this field without Realtek approval.  
CIS Pointer.  
32h-33h  
CheckSum  
Reserved. Do not change this field without Realtek approval.  
Checksum of the EEPROM content.  
34h-3Eh  
3Fh  
-
Reserved. Do not change this field without Realtek approval.  
Reserved. Do not change this field without Realtek approval.  
PXE ROM code parameter.  
PXE_Para  
40h-7Fh  
80h-FFh  
VPD_Data  
CIS_Data  
VPD data field. Offset 40h is the start address of the VPD data.  
CIS data field. Offset 80h is the start address of the CIS data. (93C56 only).  
34  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
7.1 Summary of EEPROM Registers  
Offset  
Name  
Type  
Bit7  
Bit6  
Bit5  
Bit4  
Bit3  
Bit2  
Bit1  
Bit0  
00h-05h IDR0 – IDR5 R/W*  
51h  
52h  
58h  
63H  
59h  
CONFIG0  
CONFIG1  
R
-
-
-
-
-
-
-
-
BS2  
-
BS1  
-
VPD  
VPD  
BS0  
-
PMEN  
PMEN  
*
-
W
R
LEDS1  
LEDS1  
TxFCE  
TxFCE  
LEDS0 DVRLOAD LWACT MEMMAP IOMAP  
LEDS0 DVRLOAD LWACT  
RxFCE  
RxFCE  
*
-
-
-
-
-
-
-
-
-
-
W
R
-
-
-
-
*
W
R
MSRBMCR  
CONFIG3  
-
-
-
-
Spd_Set  
Spd_Set  
Magic  
ANE  
ANE  
-
-
FUDUP  
FUDUP  
*
W
R
GNTDel PARM_EN  
LinkUp CardB_En CLKRU FuncReg FBtBEn  
N_En  
-
LWPTN  
En  
-
-
*
-
PARM_EN  
AnaOff  
Magic  
LongWF LWPME  
LinkUp  
-
-
-
-
W
5Ah  
CONFIG4  
* RxFIFO  
R/W  
AutoClr  
78h-7Bh PHY1_PARM R/W**  
7Ch-7Fh TW1_PARM R/W**  
TW2_PARM  
32 bit Read Write  
32 bit Read Write  
32 bit Read Write  
8 bit Read Write  
80h  
PHY2_PARM R/W**  
*
The registers marked with type = W can be written only if bits EEM1=EEM0=1.  
** The registers marked with type = W can be written only if bits EEM1=EEM0=1 and CONFIG3<PARM_EN> = 0.  
*
**  
7.2 SummaryofEEPROMPowerManagementRegisters  
Configuration Name Type  
Space offset  
Bit7  
Bit6  
Bit5  
Bit4  
Bit3  
Bit2  
Bit1  
Bit0  
52h  
53h  
PMC  
R
R
Aux_I_b1 Aux_I_b0  
DSI  
Reserved PMECLK  
Version  
D1  
PME_D3cold PME_D3ho PME_D2 PME_D1 PME_D0  
D2  
Aux_I_b2  
t
55h  
PMCS  
R
R
W
PME_Status  
PME_Status  
-
-
-
-
-
-
-
-
-
-
-
-
PME_En  
PME_En  
35  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
8. PCI Configuration Space Registers  
8.1 PCI Configuration Space Table  
No.  
00h  
01h  
02h  
03h  
Name  
Type  
R
Bit7  
Bit6  
Bit5  
Bit4  
Bit3  
Bit2  
VID2  
VID10  
DID2  
DID10  
Bit1  
VID1  
VID9  
DID1  
DID9  
Bit0  
VID0  
VID8  
DID0  
DID8  
IOEN  
IOEN  
VID  
VID7  
VID6  
VID5  
VID4  
VID3  
R
VID15  
VID14  
VID13  
VID12  
VID11  
DID  
R
DID7  
DID6  
DID5  
DID4  
DID3  
R
R
DID15  
DID14  
DID13  
DID12  
DID11  
04h Command  
05h  
0
PERRSP  
0
-
0
-
BMEN MEMEN  
BMEN MEMEN  
W
R
-
PERRSP  
-
-
0
0
0
-
0
0
0
FBTBEN SERREN  
W
R
-
-
-
-
-
-
0
SERREN  
06h  
07h  
Status  
FBBC  
0
0
NewCap  
0
0
0
R
DPERR  
SSERR  
RMABT RTABT  
RMABT RTABT  
STABT  
DST1  
DST0  
DPD  
W
R
DPERR  
SSERR  
STABT  
-
-
DPD  
08h Revision ID  
0
0
0
0
0
0
0
0
09h  
0Ah  
0Bh  
0Ch  
0Dh  
PIFR  
SCR  
BCR  
CLS  
LTR  
R
0
0
0
0
0
0
0
0
R
0
0
0
0
0
0
0
0
R
0
0
0
0
0
0
1
0
R
0
0
0
0
0
0
0
0
LTR0  
LTR0  
0
R
LTR7  
LTR6  
LTR5  
LTR4  
LTR3  
LTP2  
LTR1  
W
R
LTR7  
LTR6  
LTR5  
LTR4  
LTR3  
LTP2  
LTR1  
0Eh  
0Fh  
10h  
HTR  
BIST  
IOAR  
0
0
0
0
0
-
0
0
0
-
0
0
0
-
0
0
0
-
0
R
R
0
0
0
0
0
0
0
-
IOIN  
-
W
R/W  
R/W  
R/W  
R
-
-
11h  
12h  
13h  
IOAR15  
IOAR23  
IOAR31  
0
IOAR14  
IOAR22  
IOAR30  
0
IOAR13 IOAR12 IOAR11 IOAR10  
IOAR9  
IOAR8  
IOAR21 IOAR20 IOAR19 IOAR18 IOAR17 IOAR16  
IOAR29 IOAR28 IOAR27 IOAR26 IOAR25 IOAR24  
14h MEMAR  
0
-
0
-
0
-
0
-
0
-
MEMIN  
-
MEM8  
W
R/W  
R/W  
R/W  
-
-
15h  
16h  
17h  
18h-2  
7h  
28h-2  
Bh  
2Ch  
2Dh  
2Eh  
2Fh  
30h  
MEM15  
MEM23  
MEM31  
MEM14  
MEM22  
MEM30  
MEM13 MEM12 MEM11 MEM10  
MEM9  
MEM21 MEM20 MEM19 MEM18 MEM17 MEM16  
MEM29 MEM28 MEM27 MEM26 MEM25 MEM24  
RESERVED  
CISPtr  
SVID  
Cardbus CIS Pointer  
R
R
SVID7  
SVID15  
SMID7  
SMID15  
0
SVID6  
SVID14  
SMID6  
SMID14  
0
SVID5  
SVID13 SVID12 SVID11 SVID10  
SMID5 SMID4 SMID3 SMID2  
SVID4  
SVID3  
SVID2  
SVID1  
SVID0  
SVID8  
SMID0  
SMID8  
BROMEN  
BROMEN  
0
SVID9  
SMID  
BMAR  
R
SMID1  
R
SMID13 SMID12 SMID11 SMID10  
SMID9  
R
0
-
0
-
0
-
0
-
0
-
0
-
0
-
W
R
-
-
31h  
BMAR15 BMAR14 BMAR13 BMAR12 BMAR11  
BMAR15 BMAR14 BMAR13 BMAR12 BMAR11  
W
-
32h  
33h  
34h  
35h-3  
Bh  
R/W BMAR23 BMAR22 BMAR21 BMAR20 BMAR19 BMAR18 BMAR17 BMAR16  
R/W BMAR31 BMAR30 BMAR29 BMAR28 BMAR27 BMAR26 BMAR25 BMAR24  
Cap_Ptr  
ILR  
R
0
1
0
1
0
0
0
0
RESERVED  
3Ch  
R/W  
IRL7  
ILR6  
ILR5 ILR4  
ILR3  
ILR2  
ILR1  
ILR0  
36  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
3Dh  
IPR  
R
R
R
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
3Eh MNGNT  
3Fh  
40h–  
4Fh  
50h  
51h  
52h  
53h  
54h  
MXLAT  
RESERVED  
PMID  
NextPtr  
PMC  
R
R
0
0
0
0
0
0
DSI  
0
0
0
0
0
0
0
0
1
0
R
Aux_I_b1 Aux_I_b0  
Reserved PMECLK  
Version  
D1  
R
PME_D3cold PME_D3hot PME_D2 PME_D1 PME_D0  
D2  
0
-
-
-
Aux_I_b2  
PMCSR  
R
0
-
0
-
-
-
0
-
-
-
0
-
-
-
0
-
-
-
Power State  
Power State  
-
-
W
R
55h  
PME_Status  
PME_Status  
PME_En  
PME_En  
W
56h–  
5Fh  
60h  
61h  
RESERVED  
VPDID  
NextPtr  
R
R
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
62h Flag VPD R/W VPDADDR VPDADDR VPDADD VPDADD VPDADD VPDADD VPDADD VPDADD  
Address  
7
Flag  
6
R5  
R4  
R3  
R2  
R1  
R0  
63h  
R/W  
VPDADDR VPDADD VPDADD VPDADD VPDADD VPDADD VPDADD  
14  
R13  
Data5  
Data13  
Data21  
Data29  
R12  
Data4  
Data12  
Data20  
Data28  
R11  
Data3  
Data11  
Data19  
Data27  
R10  
Data2  
Data10  
Data18  
Data26  
R9  
R8  
64h VPD Data R/W  
Data7  
Data15  
Data23  
Data31  
Data6  
Data14  
Data22  
Data30  
Data1  
Data9  
Data17  
Data25  
Data0  
Data8  
Data16  
Data24  
65h  
66h  
67h  
68h-F  
Fh  
R/W  
R/W  
R/W  
RESERVED  
8.2 PCI Configuration Space Functions  
The PCI configuration space is intended for configuration, initialization, and catastrophic error handling functions. The  
functions of RTL8139C(L)'s configuration space are described below.  
VID:  
Vendor ID. This field will be set to a value corresponding to PCI Vendor ID in the external EEPROM. If there is no  
EEPROM, this field will default to a value of 10ECh which is Realtek Semiconductor's PCI Vendor ID.  
DID:  
Device ID. This field will be set to a value corresponding to PCI Device ID in the external EEPROM. If there is no  
EEPROM, this field will default to a value of 8129h.  
Command: The command register is a 16-bit register used to provide coarse control over a device's ability to generate and  
respond to PCI cycles.  
37  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
Bit  
15-10  
9
Symbol  
-
Description  
Reserved  
FBTBEN  
Fast Back-To-Back Enable: Config3<FBtBEn>=0:Read as 0. Write operation has no effect. The  
RTL8139C(L) will not generate Fast Back-to-back cycles. When Config3<FbtBEn>=1, This read/write  
bit controls whether or not a master can do fast back-to-back transactions to different devices.  
Initialization software will set the bit if all targets are fast back-to-back capable. A value of 1 means the  
master is allowed to generate fast back-to-back transaction to different agents. A value of 0 means fast  
back-to-back transactions are only allowed to the same agent. This bit’s state after RST# is 0.  
System Error Enable: When set to 1, the RTL8139C(L) asserts the SERRB pin when it detects a parity  
error on the address phase (AD<31:0> and CBEB<3:0> ).  
8
7
6
SERREN  
ADSTEP  
PERRSP  
Address/Data Stepping: Read as 0, write operation has no effect. The RTL8139C(L) never performs  
address/data stepping.  
Parity Error Response: When set to 1, RTL8139C(L) will assert the PERRB pin on the detection of a  
data parity error when acting as the target, and will sample the PERRB pin as the master. When set to 0,  
any detected parity error is ignored and the RTL8139C(L) continues normal operation.  
Parity checking is disabled after hardware reset (RSTB).  
5
VGASNOO  
P
MWIEN  
SCYCEN  
VGA palette SNOOP: Read as 0, write operation has no effect.  
4
3
Memory Write and Invalidate cycle Enable: Read as 0, write operation has no effect.  
Special Cycle Enable: Read as 0, write operation has no effect. The RTL8139C(L) ignores all special  
cycle operation.  
2
BMEN  
Bus Master Enable: When set to 1, the RTL8139C(L) is capable of acting as a bus master. When set to  
0, it is prohibited from acting as a PCI bus master.  
For the normal operation, this bit must be set by the system BIOS.  
1
0
MEMEN  
IOEN  
Memory Space Access: When set to 1, the RTL8139C(L) responds to memory space accesses. When  
set to 0, the RTL8139C(L) ignores memory space accesses.  
I/O Space Access: When set to 1, the RTL8139C(L) responds to IO space access. When set to 0, the  
RTL8139C(L) ignores I/O space accesses.  
Status: The status register is a 16-bit register used to record status information for PCI bus related events. Reads to this register  
behave normally. Writes are slightly different in that bits can be reset, but not set.  
38  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
Bit  
Symbol  
Description  
15  
DPERR  
Detected Parity Error: When set indicates that the RTL8139C(L) detected a parity error, even if parity  
error handling is disabled in command register PERRSP bit.  
Signaled System Error: When set indicates that the RTL8139C(L) asserted the system error pin, SERRB.  
Writing a 1 clears this bit to 0.  
14  
13  
SSERR  
RMABT  
RTABT  
STABT  
DST1-0  
DPD  
Received Master Abort: When set indicates that the RTL8139C(L) terminated a master transaction with  
master abort. Writing a 1 clears this bit to 0.  
12  
Received Target Abort: When set indicates that the RTL8139C(L) master transaction was terminated due  
to a target abort. Writing a 1 clears this bit to 0.  
11  
Signaled Target Abort: Set to 1 whenever the RTL8139C(L) terminates a transaction with target abort.  
Writing a 1 clears this bit to 0.  
10-9  
8
Device Select Timing: These bits encode the timing of DEVSELB. They are set to 01b (medium),  
indicating the RTL8139C(L) will assert DEVSELB two clocks after FRAMEB is asserted.  
Data Parity error Detected:  
This bit sets when the following conditions are met:  
The RTL8139C(L) asserts parity error(PERRB pin) or it senses the assertion of PERRB pin by another  
device.  
The RTL8139C(L) operates as a bus master for the operation that caused the error.  
The Command register PERRSP bit is set.  
Writing a 1 clears this bit to 0.  
7
6
FBBC  
UDF  
Fast Back-To-Back Capable: Config3<FbtBEn>=0, Read as 0, write operation has no effect.  
Config3<FbtBEn>=1, Read as 1.  
User Definable Features Supported: Read as 0, write operation has no effect. The RTL8139C(L) does  
not support UDF.  
66 MHz Capable: Read as 0, write operation has no effect. The RTL8139C(L) has no 66MHz capability.  
New Capability: Config3<PMEn>=0, Read as 0, write operation has no effect. Config3<PMEn>=1, Read as  
1.  
5
4
66MHz  
NewCap  
0-3  
-
Reserved  
RID: Revision ID Register  
The Revision ID register is an 8-bit register that specifies the RTL8139C(L) controller revision number.  
PIFR: Programming Interface Register  
The programming interface register is an 8-bit register that identifies the programming interface of the RTL8139C(L)  
controller. Because the PCI version 2.1 specification does not define any specific value for network devices, PIFR = 00h.  
SCR: Sub-Class Register  
The Sub-class register is an 8-bit register that identifies the function of the RTL8139C(L). SCR = 00h indicates that the  
RTL8139C(L) is an Ethernet controller.  
BCR: Base-Class Register  
The Base-class register is an 8-bit register that broadly classifies the function of the RTL8139C(L). BCR = 02h indicates  
that the RTL8139C(L) is a network controller.  
CLS: Cache Line Size  
Reads will return a 0, writes are ignored.  
LTR: Latency Timer Register  
Specifies, in units of PCI bus clocks, the value of the latency timer of the RTL8139C(L).  
When the RTL8139C(L) asserts FRAMEB, it enables its latency timer to count. If the RTL8139C(L) deasserts FRAMEB  
prior to count expiration, the content of the latency timer is ignored. Otherwise, after the count expires, the RTL8139C(L)  
initiates transaction termination as soon as its GNTB is deasserted. Software is able to read or write, and the default value is  
00H.  
HTR: Header Type Register  
Reads will return a 0, writes are ignored.  
39  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
BIST: Built-in Self Test  
Reads will return a 0, writes are ignored.  
IOAR: This register specifies the BASE IO address which is required to build an address map during configuration. It also  
specifies the number of bytes required as well as an indication that it can be mapped into IO space.  
Bit  
Symbol  
Description  
31-8 IOAR31-8  
BASE IO Address: This is set by software to the Base IO address for the operational register map.  
7-2  
IOSIZE  
Size Indication: Read back as 0. This allows the PCI bridge to determine that the RTL8139C(L)  
requires 256 bytes of IO space.  
Reserved  
1
0
-
IOIN  
IO Space Indicator: Read only. Set to 1 by the RTL8139C(L) to indicate that it is capable of being  
mapped into IO space.  
MEMAR: This register specifies the base memory address for memory accesses to the RTL8139C(L) operational registers. This  
register must be initialized prior to accessing any of the RTL8139C(L)'s register with memory access.  
Bit  
31-8  
7-4  
Symbol  
MEM31-8  
MEMSIZE  
Description  
Base Memory Address: This is set by software to the base address for the operational register map.  
Memory Size: These bits return 0, which indicates that the RTL8139C(L) requires 256 bytes of  
Memory Space.  
3
2-1  
MEMPF  
MEMLOC  
Memory Prefetchable: Read only. Set to 0 by the RTL8139C(L).  
Memory Location Select: Read only. Set to 0 by the RTL8139C(L). This indicates that the base  
register is 32-bit wide and can be placed anywhere in the 32-bit memory space.  
Memory Space Indicator: Read only. Set to 0 by the RTL8139C(L) to indicate that it is capable of  
being mapped into memory space.  
0
MEMIN  
40  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
CISPtr: CardBus CIS Pointer. This field is valid only when CardB_En (bit3, Config3) = 1. The value of this register is  
auto-loaded from 93C46 or 93C56 (from offset 30h-31h).  
-
Bit 2-0: Address Space Indicator  
Bit2-0  
0
Meaning  
Not supported. (CIS begins in device-dependent configuration space.)  
The CIS begins in the memory address governed by one of the six Base  
Address Registers. Ex., if the value is 2, then the CIS begins in the memory  
address space governed by Base Address Register 2.  
The CIS begins in the Expansion ROM space.  
1-6  
7
-
-
Bit27-3: Address Space Offset  
Bit31-28: ROM Image number  
Bit2-0  
Space Type  
Configuration space  
Memory space  
Address Space Offset Values  
0
Not supported.  
X; 1X6  
0hvalueFFFF FFF8h. This is the offset into the memory address space  
governed by Base Address Register X. Adding this value to the value in the  
Base Address Register gives the location of the start of the CIS. For  
RTL8139C(L), the value is 100h.  
0image numberFh, 0hvalue0FFF FFF8h. This is the offset into the  
expansion ROM address space governed by the Expansion ROM Base  
Register. The image number is in the uppermost nibble of the CISPtr  
register. The value consists of the remaining bytes. For RTL8139C(L), the  
image number is 0h.  
7
Expansion ROM  
This read-only register points to where the CIS begins, in one of the following spaces:  
i.  
Memory space --- The CIS may be in any of the memory spaces from offset 100h and up after being  
auto-loaded from 93C56. The CIS is stored in 93C56 EEPROM physically from offset 80h-FFh.  
Expansion ROM space --- The CIS is stored in expansion ROM physically within the 128KB max.  
ii.  
SVID: Subsystem Vendor ID. This field will be set to a value corresponding to the PCI Subsystem Vendor ID in the external  
EEPROM. If there is no EEPROM, this field will default to a value of 11ECh which is Realtek Semiconductor's PCI  
Subsystem Vendor ID.  
SMID: Subsystem ID. This field will be set to a value corresponding to the PCI Subsystem ID in the external EEPROM. If there  
is no EEPROM, this field will default to a value of 8129h.  
BMAR: This register specifies the base memory address for memory accesses to the RTL8139C(L) operational registers. This  
register must be initialized prior to accessing any of the RTL8139C(L)'s registers with memory access.  
Bit  
Symbol  
Description  
31-18 BMAR31-18 Boot ROM Base Address  
17-11  
ROMSIZE  
These bits indicate how many Boot ROM spaces to be supported.  
The Relationship between Config 0 <BS2:0> and BMAR17-11 is the following:  
BS2 BS1 BS0 Description  
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
No Boot ROM, BROMEN=0 (R)  
8K Boot ROM, BROMEN (R/W), BMAR12-11 = 0 (R), BMAR17-13 (R/W)  
16K Boot ROM, BROMEN (R/W), BMAR13-11 = 0 (R), BMAR17-14 (R/W)  
32K Boot ROM, BROMEN (R/W), BMAR14-11 = 0 (R), BMAR17-15 (R/W)  
64K Boot ROM, BROMEN (R/W), BMAR15-11 = 0 (R), BMAR17-16 (R/W)  
128K Boot ROM, BROMEN(R/W), BMAR16-11=0 (R), BMAR17 (R/W)  
unused  
unused  
10-1  
0
-
Reserved (read back 0)  
BROMEN  
Boot ROM Enable: This is used by the PCI BIOS to enable accesses to Boot ROM.  
41  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
ILR: Interrupt Line Register  
The Interrupt Line Register is an 8-bit register used to communicate with the routing of the interrupt. It is written by the  
POST software to set interrupt line for the RTL8139C(L).  
IPR: Interrupt Pin Register  
The Interrupt Pin register is an 8-bit register indicating the interrupt pin used by the RTL8139C(L). The  
RTL8139C(L) uses INTA interrupt pin. Read only. IPR = 01H.  
MNGNT: Minimum Grant Timer: Read only  
Specifies how long a burst period the RTL8139C(L) needs at 33 MHz clock rate in units of 1/4 microsecond. This  
field will be set to a value from the external EEPROM. If there is no EEPROM, this field will default to a value of 20h.  
MXLAT: Maximum Latency Timer: Read only  
Specifies how often the RTL8139C(L) needs to gain access to the PCI bus in units of 1/4 microseconds. This field  
will be set to a value from the external EEPROM. If there is no EEPROM, this field will default to a value of 20h.  
8.3 Default Values After Power-on (RSTB asserted)  
PCI Configuration Space Table  
No.  
00h  
01h  
02h  
03h  
04h  
Name  
Type  
R
Bit7  
Bit6  
Bit5  
Bit4  
Bit3  
Bit2  
Bit1  
Bit0  
VID  
1
1
1
0
1
0
0
-
0
-
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
0
R
0
0
1
0
DID  
R
0
0
0
1
R
1
0
0
0
Command  
R
0
0
0
0
W
R
-
PERRSP  
-
-
BMEN MEMEN IOEN  
05h  
0
0
-
0
0
0
0
0
0
0
W
R
-
-
NewCap  
0
-
-
-
SERREN  
06h  
07h  
Status  
0
0
0
0
0
0
R
0
0
0
1
W
R
DPERR  
SSERR RMABT RTABT  
STABT  
-
-
DPD  
08h  
09h  
0Ah  
0Bh  
0Ch  
0Dh  
Revision ID  
PIFR  
0
0
0
0
0
0
0
0
R
0
0
0
0
0
0
0
0
SCR  
R
0
0
0
0
0
0
0
0
BCR  
R
0
0
0
0
0
0
1
0
CLS  
R
0
0
0
0
0
0
0
0
LTR  
R
0
0
0
0
0
0
0
0
W
R
LTR7  
LTR6  
LTR5  
LTR4  
LTR3  
LTP2  
LTR1  
LTR0  
0Eh  
0Fh  
10h  
11h  
12h  
13h  
14h  
15h  
16h  
17h  
18h  
|
HTR  
BIST  
IOAR  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
R
R
R/W  
R/W  
R/W  
R
MEMAR  
R/W  
R/W  
R/W  
RESERVED(ALL 0)  
-
27h  
28h  
29h  
R
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CISPtr  
42  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
2Ah  
2Bh  
2Ch  
2Dh  
2Eh  
2Fh  
30h  
R
R
0
0
1
0
0
1
0
-
0
0
1
0
0
0
0
-
0
0
1
0
1
0
0
-
0
0
0
1
0
0
0
-
0
0
1
0
1
0
0
-
0
0
0
0
0
0
SVID  
SMID  
BMAR  
R
1
0
0
R
0
0
1
R
0
0
1
R
0
0
1
R
0
0
0
W
R
-
-
BROMEN  
31h  
0
0
0
0
0
0
0
0
-
W
R/W  
R/W  
R
BMAR15 BMAR14 BMAR13 BMAR12 BMAR11  
-
-
32h  
33h  
34h  
35h  
|
0
0
Ptr7  
0
0
Ptr6  
0
0
Ptr5  
0
0
Ptr4  
0
0
Ptr3  
0
0
0
0
0
0
Cap-Ptr  
-
Ptr2  
Ptr1  
Ptr0  
RESERVED(ALL 0)  
3Bh  
3Ch  
3Dh  
3Eh  
3Fh  
40h  
|
ILR  
IPR  
R/W  
R
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
MNGNT  
MXLAT  
R
0
0
R
RESERVED(ALL 0)  
-
FFh  
8.4 PCI Power Management Functions  
The RTL8139C(L) is compliant to ACPI (Rev 1.0, 1.0b, 2.0), PCI Power Management (Rev 1.1), and Network Device Class  
Power Management Reference Specification (V1.0, 1.0a, 2.0), such as to support OS Directed Power Management (OSPM)  
environment. To support this, the RTL8139C(L) provides the following capabilities:  
The RTL8139C(L) can monitor the network for a Wakeup Frame, a Magic Packet, or a Link Change, and notify the  
system via PME# when such a packet or event arrives. Then, the whole system can be restored to a working state to  
process the incoming jobs.  
The RTL8139C(L) can be isolated from the PCI bus automatically with the auxiliary power circuit when the PCI bus is  
in B3 state, i.e. when the power on the PCI bus is removed. When the motherboard includes a built-in RTL8139C(L)  
single-chip fast Ethernet controller, the RTL8139C(L) can be disabled when needed by pulling the isolate pin low to 0V.  
When the RTL8139C(L) is in power down mode (D1 ~ D3):  
The Rx state machine is stopped, and the RTL8139C(L) keeps monitoring the network for wakeup events such as Magic  
Packet, Wakeup Frame, and/or Link Change, in order to wake up the system. When in power down mode, the  
RTL8139C(L) will not reflect the status of any incoming packets in the ISR register and will not receive any packets into  
the Rx FIFO.  
The FIFO status and the packets which are already contained in the Rx FIFO before entering power down mode are kept  
by the RTL8139C(L) during power down mode.  
The transmission is stopped. The action of PCI bus master mode is stopped, as well. The Tx FIFO is kept.  
After restoration to a D0 state, the PCI bus master mode continues to transfer the data, which is not yet moved into the Tx  
FIFO from the last break. The packet that was not transmitted completely last time is transmitted again.  
D3cold_support_PME bit(bit15, PMC register) & Aux_I_b2:0 (bit8:6, PMC register) in PCI configuration space.  
If 9346 D3cold_support_PME bit(bit15, PMC) = 1, the above 4 bits depend on the existence of Aux. power.  
If 9346 D3cold_support_PME bit(bit15, PMC) = 0, the above 4 bits are all 0's.  
Examples:  
1. If 9346 D3c_support_PME = 1,  
If Aux. power exists, then PMC in PCI config space is the same as 9346 PMC, i.e. if 9346 PMC = C2 F7,  
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then PCI PMC = C2 F7.  
If Aux. power is absent, then PMC in PCI config space is the same as 9346 PMC except the above 4 bits  
are all 0’s. I.e. if 9346 PMC = C2 F7, the PCI PMC = 02 76.  
In this case, if wakeup support is desired when the main power is off, it is suggested that the 9346  
PMC be set to: C2 F7 (RT 9346 default value). It is not recommended to set the D0_support_PME  
bit to “1”.  
2. If 9346 D3c_support_PME = 0,  
If Aux. power exists, then PMC in PCI config space is the same as 9346 PMC. I.e. if 9346 PMC = C2 77,  
then PCI PMC = C2 77.  
If Aux. power is absent, then PMC in PCI config space is the same as 9346 PMC except the above 4 bits  
are all 0’s. I.e. if 9346 PMC = C2 77, the PCI PMC = 02 76.  
In this case, if wakeup support is not desired when the main power is off, it is suggested that the  
9346 PMC to be 02 76. It is not recommended to set the D0_support_PME bit to “1”.  
A Link Wakeup occurs only when the following conditions are met:  
The LinkUp bit (CONFIG3#4) is set to 1, the PMEn bit (CONFIG1#0) is set to 1, and the RTL8139C(L) is in an  
isolation state, or the PME# can be asserted in current power state.  
The Link status is re-established.  
A Magic Packet Wakeup occurs only when the following conditions are met:  
The destination address of the received Magic Packet matches.  
The received Magic Packet does not contain a CRC error.  
The Magic bit (CONFIG3#5) is set to 1, the PMEn bit (CONFIG1#0) is set to 1, and the RTL8139C(L) is in isolation  
state, or the PME# can be asserted in current power state.  
The Magic Packet pattern matches, i.e. 6 * FFh + MISC(can be none)+ 16 * DID(Destination ID) in any part of a valid  
(Fast) Ethernet packet.  
A Wakeup Frame event occurs only when the following conditions are met:  
The destination address of the received Wakeup Frame matches.  
The received Wakeup Frame does not contain a CRC error.  
The PMEn bit (CONFIG1#0) is set to 1.  
The 8-bit CRC* (or 16-bit CRC) of the received Wakeup Frame matches with the 8-bit CRC* (or 16-bit CRC) of the  
sample Wakeup Frame pattern received from the local machine’s OS.  
The last masked byte** of the received Wakeup Frame matches with the last masked byte of the sample Wakeup Frame  
pattern provided by the local machine’s OS. (In Long Wakeup Frame mode, the last masked byte field is replaced with  
the high byte of the 16-bit CRC.)  
* 8-bit CRC:  
This 8-bit CRC logic is used to generate an 8-bit CRC from the masked bytes of the received Wakeup Frame packet within offset  
12 to 75. Software should calculate the 8-bit Power Management CRC for each specific sample wakeup frame and store the  
calculated CRC in the corresponding CRC register for the RTL8139C(L) to check if there is a Wakeup Frame packet coming in.  
* 16-bit CRC: (Long Wakeup Frame mode, the mask bytes cover from offset 0 to 127):  
Long Wakeup Frame: The RTL8139C(L) also supports 3 long Wakeup Frames. If the range of the mask bytes of the sample  
Wakeup Frame, passed down by the OS to the driver, exceeds the range from offset 12 to 75, the related registers of wakeup  
frames 2 and 3 can be merged to support one long wakeup frame by setting the LongWF (bit0, CONFIG4). Thus, the range  
of effective mask bytes extends from offset 0 to 127. The low byte and high byte of the calculated 16-bit CRC should be put  
into register CRC2 and LSBCRC2 respectively. The mask bytes (16 bytes) should be stored to register Wakeup2 and  
Wakeup3. The CRC3 and LSBCRC3 have no meaning in this case and should be reset to 0. The long Wakeup Frame pairs  
are wakeup frames 4 and 5, wakeup frames 6 and 7. The CRC5, CRC7, LSBCRC5, and LSBCRC7 have no meaning in this  
case and should be reset to 0, if the RTL8139C(L) is set to support long Wakeup Frames. In this case, the RTL8139C(L)  
supports 5 wakeup frames, that are 2 normal wakeup frames and 3 long wakeup frames.  
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RTL8139C(L)  
** last masked byte:  
The last byte of the masked bytes of the received Wakeup Frame packet within offset 12 to 75 (in 8-bit CRC mode) should  
match the last byte of the masked bytes of the sample Wakeup Frame provided by the local machine’s OS.  
The PME# signal is asserted only when the following conditions are met:  
The PMEn bit (bit0, CONFIG1) is set to 1.  
The PME_En bit (bit8, PMCSR) in PCI Configuration Space is set to 1.  
The RTL8139C(L) may assert PME# in current power state, or the RTL8139C(L) is in isolation state. Refer to  
PME_Support(bit15-11) of the PMC register in PCI Configuration Space.  
Magic Packet, LinkUp, or Wakeup Frame has occurred.  
Note: Writing a 1 to the PME_Status (bit15) of the PMCSR register in the PCI Configuration Space will clear this bit  
and cause the RTL8139C(L) to stop asserting a PME# (if enabled).  
When the RTL8139C(L) is in power down mode, ex. D1-D3, the IO, MEM, and Boot ROM space are all disabled. After RST#  
is asserted, the power state must be changed to D0 if the original power state is D3cold. There is no hardware enforced delays at  
RTL8139C(L)’s power state. When in ACPI mode, the RTL8139C(L) does not support PME from D0, due to the setting of the  
PMC register. This setting comes from EEPROM.  
The RTL8139C(L) also supports the LAN WAKE-UP function. The LWAKE pin is used to notify the motherboard to execute  
the wake-up process whenever the RTL8139C(L) receives a wakeup event, such as Magic Packet.  
The LWAKE signal is asserted according the following setting.  
LWPME bit (bit4, CONFIG4):  
0: The LWAKE is asserted whenever there is wakeup event occurs.  
1: The LWAKE can only be asserted when the PMEB is asserted and the ISOLATEB is low.  
Bit1 of DELAY byte(offset 1Fh, EEPROM):  
0: LWAKE signal is disabled.  
1: LWAKE signal is enabled  
8.5 Vital Product Data (VPD)  
Bit 31 of the VPD is used to issue the VPD read/write command and is also a flag used to indicate if the transfer of data between  
the VPD data register and the 93C46/93C56 has been completed or not.  
1.  
2.  
Write VPD register: (write data to 93C46/93C56)Write the flag bit to a one at the same time the VPD address is written.  
When the flag bit is set to zero by the RTL8139C(L), the VPD data (all 4 bytes) has been transferred from the VPD data  
register to 93C46/93C56.  
Read VPD register: (read data from 93C46/93C56) Write the flag bit to a zero at the same time the VPD address is written.  
When the flag bit is set to one by the RTL8139C(L), the VPD data (all 4 bytes) has been transferred from the 93C46/93C56  
to the VPD data register.  
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RTL8139C(L)  
9. Functional Description  
9.1 Transmit Operation  
The host CPU initiates a transmit by storing an entire packet of data in one of the descriptors in the main memory. When the  
entire packet has been transferred to the Tx buffer, the RTL8139C(L) is instructed to move the data from the Tx buffer to the  
internal transmit FIFO in PCI bus master mode. When the transmit FIFO contains a complete packet or is filled to the  
programmed threshold level, the RTL8139C(L) begins packet transmission.  
9.2 Receive Operation  
The incoming packet is placed in the RTL8139C(L)'s Rx FIFO. Concurrently, the RTL8139C(L) performs address filtering of  
multicast packets according to its hash algorithms. When the amount of data in the Rx FIFO reaches the level defined in the  
Receive Configuration Register, the RTL8139C(L) requests the PCI bus to begin transferring the data to the Rx buffer in PCI bus  
master mode.  
9.3 Line Quality Monitor  
The line quality monitor function is available in 100Base-TX mode. It is possible to determine the amount of Equalization being used  
by accessing certain test registers with the DSP engine. This provides a crude indication of connected cable length. This function  
allows for a quick and simple verification of the line quality in that any significant deviation from an expected register value (based on  
a known cable length) would indicate that the signal quality has deviated from the expected nominal case.  
9.4 Clock Recovery Module  
The Clock Recovery Module (CRM) is supported in both 10Base-T and 100Base-TX mode. The CRM accepts 125Mb/s MLT3 data  
from the equalizer. The DPLL locks onto the 125Mb/s data stream and extracts a 125MHz recovered clock. The extracted and  
synchronized clock and data are used as required by the synchronous receive operations.  
9.5 Loopback Operation  
Loopback mode is normally used to verify that the logic operations up to the Ethernet cable function correctly. In loopback mode for  
100Mbps, the RTL8139C(L) takes frames from the transmit descriptor and transmits them up to internal Twister logic.  
9.6 Tx Encapsulation  
While operating in 100Base-TX mode, the RTL8139C(L) encapsulates the frames that it transmits according to the 4B/5B  
code-groups table. The changes of the original packet data are listed as follows:  
1. The first byte of the preamble in the MAC frame is replaced with the JK symbol pair.  
2. After the CRC, the TR symbol pair is inserted.  
9.7 Collision  
If the RTL8139C(L) is not in full-duplex mode, a collision event occurs when the receive input is not idle while the  
RTL8139C(L) transmits. If the collision was detected during the preamble transmission, the jam pattern is transmitted after  
completing the preamble (including the JK symbol pair).  
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RTL8139C(L)  
9.8 Rx Decapsulation  
The RTL8139C(L) continuously monitors the network when reception is enabled. When activity is recognized it starts to process  
the incoming data.  
After detecting receive activity on the line, the RTL8139C(L) starts to process the preamble bytes based on the mode of  
operation.  
While operating in 100Base-TX mode, the RTL8139C(L) expects the frame to start with the symbol pair JK in the first bye of the  
8-byte preamble.  
The RTL8139C(L) checks the CRC bytes and checks if the packet data ends with the TR symbol pair, if not, the RTL8139C(L)  
reports a CRC error RSR.  
The RTL8139C(L) reports a RSR<CRC> error in the following case:  
In 100Base-TX mode, one of the following occur.  
a. An invalid symbol (4B/5B Table) is received in the middle of the frame.  
The RSR<ISE> bit also sets.  
b. The frame does not end with the TR symbol pair.  
9.9 Flow Control  
The RTL8139C(L) supports IEEE802.3X flow control to improve performance in full-duplex mode. It detects PAUSE packets  
to achieve flow control tasks.  
9.9.1. Control Frame Transmission  
When the RTL8139C(L) detects that its free receive buffer is less than 3K bytes, it sends a PAUSE packet with  
pause_time(=FFFFh) to inform the source station to stop transmission for the specified period of time. After the driver has  
processed the packets in the receive buffer and updated the boundary pointer, the RTL8139C(L) sends the other PAUSE packet  
with pause_time(=0000h) to wake up the source station to restart transmission.  
9.9.2. Control Frame Reception  
The RTL8139C(L) enters a back off state for a specified period of time when it receives a valid PAUSE packet with  
pause_time(=n). If the PAUSE packet is received while the RTL8139C(L) is transmitting, the RTL8139C(L) starts to back off  
after current transmission completes. The RTL8139C(L) is free to transmit the next packets when it receives a valid PAUSE  
packet with pause_time(=0000h) or the backoff timer(=n*512 bit time) elapses.  
Note: The PAUSE operation cannot be used to inhibit transmission of MAC Control frames (e.g. a PAUSE packet). The N-way  
flow control capability can be disabled. Please refer to Section 7, “EEPROM (93C46 or 93C56) Contents” for a detailed  
description.  
9.10 LED Functions  
9.10.1 10/100 Mbps Link Monitor  
The Link Monitor senses the link integrity or if a station is down.  
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RTL8139C(L)  
9.10.2 LED_RX  
In 10/100 Mbps mode, the LED function is like the RTL8129.  
Power On  
LED = Low  
No  
Receiving Packet?  
Yes  
LED = High for (100 +- 10) ms  
LED = Low for (12 +- 2) ms  
9.10.3 LED_TX  
Power On  
LED = Low  
No  
Transmitting Packet  
Yes  
LED = High for (100 +- 10) ms  
LED = Low for (12 +- 2) ms  
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RTL8139C(L)  
9.10.4 LED_TX+LED_RX  
Power On  
LED = Low  
No  
Tx or Rx Packet?  
Yes  
LED = High for (100 +- 10) ms  
LED = Low for (12 +- 2) ms  
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RTL8139C(L)  
10. Application Diagram  
EEPROM  
LED  
CLK  
DATA  
BOOT  
ROM  
RTL8139C(L)  
RJ45  
Magetics  
Address  
Auxiliary Power  
PCI INTERFACE  
50  
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RTL8139C(L)  
11. Electrical Characteristics  
11.1 Temperature Limit Ratings  
Parameter  
Minimum  
Maximum  
+125  
Units  
°C  
°C  
Storage temperature  
-55  
0
Operating temperature  
70  
11.2 DC Characteristics  
11.2.1 Supply Voltage  
Vcc = 3.0V min. to 3.6V max.  
Symbol  
Parameter  
Conditions  
Minimum  
Maximum  
Units  
V
V
V
V
Minimum High Level Output Voltage  
Maximum Low Level Output Voltage  
Minimum High Level Input Voltage  
Maximum Low Level Input Voltage  
Input Current  
I
0.9 * Vcc  
Vcc  
V
OH  
OL  
IH  
IL  
OH= -8mA  
I
0.1 * Vcc  
Vcc+0.5  
0.3 * Vcc  
1.0  
V
V
V
OL= 8mA  
0.5 * Vcc  
-0.5  
I
V
V
-1.0  
uA  
IN  
IN= CC or  
GND  
I
I
Tri-State Output Leakage Current  
Average Operating Supply Current  
V
V
-10  
10  
uA  
OZ  
CC  
OUT= CC or  
GND  
I
0mA,  
150  
mA  
OUT=  
51  
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RTL8139C(L)  
11.3 AC Characteristics  
11.3.1 FLASH/BOOT ROM Timing  
FLASH/BOOT ROM - Read  
MA17-0  
TRC  
ROMCSB  
OEB  
TWRBR  
TOES  
TCE  
TOOLZ  
WEB  
TOHZ  
TOH  
TCOLZ  
MD7-0  
TACC  
Symbol  
TRC  
TCE  
TACC  
TOES  
TCOLZ  
TOOLZ  
TOHZ  
TOH  
Description  
Minimum  
Typical  
Maximum  
Units  
ns  
Read Cycle  
135  
-
-
-
-
-
-
-
-
-
200  
200  
60  
-
-
40  
0
Chip Enable Access Time  
Address Access Time  
Output Enable Access Time  
Chip Enable to Output in Low Z  
-
-
-
ns  
ns  
ns  
0
0
-
ns  
Output Enable to Output in Low Z  
Output Disable to Output in High Z  
Output Hold from Address, ROMCSB, or  
OEB  
ns  
ns  
0
ns  
TWRBR  
Write Recovery time Before Read  
6
-
-
us  
52  
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RTL8139C(L)  
FLASH MEMORY - Write  
SETUPMPROGRAM  
COMMAND  
PROGRAM COMMAND  
STANDBY/VCC  
POWER-DOWN  
PROGRAM  
VERIFY  
VCC POWER-UP  
& STANDBY  
LATCH ADDRESS  
& DATA  
PROGRAMMING  
VERIFICATION  
COMMAND  
MA17-0  
ROMCSB  
OEB  
tWC  
tWC  
tAS  
tRC  
tAH  
tCH  
tAH  
tCS  
tCH  
tCS  
tWHWH1  
tWHGL  
tWPH  
tGHWL  
tDF  
tWP  
tDS  
tWP  
tWP  
tDS  
tOH  
tOE  
WEB  
tDS  
tDH  
tDH  
tOOLZ  
VALID  
DATA  
IN  
DATAOUT  
=40H  
DATAOUT  
=C0H  
DATAO  
MD7-0  
tCOLZ  
tCE  
Symbol  
TWC  
Description  
Write Cycle Time  
Address Set-up Time  
Address Hold Time  
Data Set-up Time  
Data Hold Time  
Minimum  
Typical  
Maximum  
Units  
ns  
135  
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TAS  
ns  
TAH  
60  
50  
10  
6
0
20  
ns  
TDS  
ns  
TDH  
ns  
TWHGL  
TGHWL  
TCS  
Write Recovery Time before Read  
Read Recovery Time before Write  
Chip Enable Set-up Time before  
Write  
us  
us  
ns  
TCH  
TWP  
Chip Enable Hold Time  
Write Pulse Width  
0
-
-
-
-
-
-
-
us  
ns  
ns  
us  
50  
20  
10  
TWPH  
Write Pulse Width High  
TWHWH1  
Duration of Programming Operation  
25  
53  
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RTL8139C(L)  
11.3.2 PCI Bus Operation Timing:  
Target Read  
Target Write  
54  
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RTL8139C(L)  
Configuration Read  
Configuration Write  
55  
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RTL8139C(L)  
BUS Arbitration  
Memory Read  
56  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
Memory Write  
Target Initiated Termination - Retry  
57  
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Rev.1.4  
RTL8139C(L)  
Target Initiated Termination - Disconnect  
Target Initiated Termination - Abort  
58  
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RTL8139C(L)  
Master Initiated Termination - Abort  
Parity Operation - one example  
59  
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RTL8139C(L)  
12. Mechanical Dimensions  
Note:  
Symbol Dimension in inch Dimension in mm  
1. Dimension D & E do not include interlead flash.  
2. Dimension b does not include dambar  
protrusion/intrusion.  
Typical  
Typical  
Min  
Max Min  
Max  
-
0.134  
-
-
3.40  
0.91  
3.10  
0.32  
0.25  
14.25  
20.25  
0.75  
17.50  
23.50  
1.08  
1.85  
0.10  
12°  
3. Controlling dimension: Millimeter  
4. General appearance spec. should be based on final visual  
inspection spec.  
A
A1  
A2  
B
0.004 0.010 0.036 0.10  
0.102 0.112 0.122 2.60  
0.005 0.009 0.013 0.12  
0.002 0.006 0.010 0.05  
0.541 0.551 0.561 13.75  
0.778 0.787 0.797 19.75  
0.010 0.020 0.030 0.25  
0.665 0.677 0.689 16.90  
0.902 0.913 0.925 22.90  
0.027 0.035 0.043 0.68  
0.053 0.063 0.073 1.35  
0.25  
2.85  
0.22  
0.15  
14.00  
20.00  
0.5  
C
D
TITLE: 128 QFP (14x20 mm ) PACKAGE OUTLINE  
-CU L/F, FOOTPRINT 3.2 mm  
E
LEADFRAME MATERIAL:  
APPROVE  
DOC. NO. 530-ASS-P004  
HD  
HE  
L
17.20  
23.20  
0.88  
1.60  
-
VERSION  
PAGE  
DWG NO.  
DATE  
1
OF  
CHECK  
Q128 - 1  
Nov. 4 1999  
L1  
y
-
-
0.004  
-
-
-
REALTEK SEMI-CONDUCTOR CO., LTD  
θ
0°  
12°  
0°  
60  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
Note:  
Symbol Dimension in inch  
Dimension in mm  
1.Dimension b does not include dambar protrusion/intrusion.  
2.Controlling dimension: Millimeter  
Min Typical Max Min Typical Max  
-
-
0.067  
-
-
-
1.70  
0.25  
1.50  
0.29  
0.20  
14.25  
20.25  
BSC  
16.30  
23.30  
0.75  
REF  
9°  
3.General appearance spec. should be based on final visual  
A
A1  
A2  
b
0.000 0.004 0.008 0.00  
0.051 0.055 0.059 1.30  
0.006 0.009 0.011 0.15  
1.40  
0.22  
-
0.004  
-
0.006 0.09  
TITLE: 128LD  
APPROVE  
CHECK  
c
LQFP  
( 14x20x1.4 mm*2 ) PACKAGE  
-CU L/F, FOOTPRINT 2.0 mm  
LEADFRAME MATERIAL:  
0.541 0.551 0.561 13.75  
0.778 0.787 0.797 19.75  
0.020 BSC  
D
E
14.00  
20.00  
0.50  
16.00  
22.00  
0.60  
1.00  
3.5°  
DOC. NO.  
VERSION  
PAGE  
530-ASS-P004  
0.620 0.630 0.640 15.90  
0.855 0.866 0.877 21.70  
0.016 0.024 0.031 0.45  
0.039 REF  
1
HD  
HE  
L
L1  
θ
OF  
LQ128 - 1  
Nov. 4.1999  
DWG NO.  
DATE  
REALTEK SEMICONDUCTOR CORP.  
0°  
3.5°  
9°  
0°  
61  
2002/01/10  
Rev.1.4  
RTL8139C(L)  
Realtek Semiconductor Corp.  
Headquarters  
1F, No. 2, Industry East Road IX, Science-based  
Industrial Park, Hsinchu, 300, Taiwan, R.O.C.  
Tel : 886-3-5780211 Fax : 886-3-5776047  
WWW: www.realtek.com.tw  
62  
2002/01/10  
Rev.1.4  

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REALTEK

RTL8150LM

USB Bus Controller, CMOS, PQFP100, 14 X 14 MM, 1.40 MM HEIGHT, MS-026BED, LQFP-100
REALTEK

RTl8152B

INTEGRATED 10/100M ETHERNET CONTROLLER
REALTEK

RTL8152B-VB-CG

INTEGRATED 10/100M ETHERNET CONTROLLER
REALTEK

RTL8168

INTEGRATED GIGABIT ETHERNET CONTROLLER FOR PCI EXPRESS TM
ETC

RTL8168B-GR

Micro Peripheral IC
REALTEK

RTL8169

RTL8169 Specification
ETC

RTL8169S-32

LAN Controller, PQFP128
REALTEK

RTL8169S-64

LAN Controller, PBGA233
REALTEK

RTL8169SB

INTEGRATED GIGABIT ETHERNET CONTROLLER (NIC)
REALTEK

RTL8169SB-LF

INTEGRATED GIGABIT ETHERNET CONTROLLER (NIC)
REALTEK