RTL8100BL-LF [REALTEK]
SINGLE-CHIP 10/100MBPS ETHERNET CONTROLLER WITH POWER MANAGEMENT;
| 型号： | RTL8100BL-LF |
| 厂家： | 
Realtek Semiconductor Corp. |
| 描述： | SINGLE-CHIP 10/100MBPS ETHERNET CONTROLLER WITH POWER MANAGEMENT 局域网（LAN）标准 以太网：16GBASE-T |
| 文件： | 总66页 (文件大小：761K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RTL8100B
RTL8100BL
RTL8100B-LF
RTL8100BL-LF
RTL8100B-GR
RTL8100BL-GR
SINGLE-CHIP 10/100MBPS ETHERNET
CONTROLLER WITH POWER MANAGEMENT
DATASHEET
Rev. 1.5
08 September 2005
Track ID: JATR-1076-21
RTL8100B(L)
Datasheet
COPYRIGHT
©2005 Realtek Semiconductor Corp. All rights reserved. No part of this document may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means without the written permission of Realtek Semiconductor Corp.
DISCLAIMER
Realtek provides this document “as is”, without warranty of any kind, neither expressed nor implied,
including, but not limited to, the particular purpose. Realtek may make improvements and/or changes in
this document or in the product described in this document at any time. This document could include
technical inaccuracies or typographical errors.
TRADEMARKS
Realtek is a trademark of Realtek Semiconductor Corporation. Other names mentioned in this document are
trademarks/registered trademarks of their respective owners.
USING THIS DOCUMENT
Though every effort has been made to ensure that this document is current and accurate, more information
may have become available subsequent to the production of this guide. In that event, please contact your
Realtek representative for additional information that may help in the development process.
REVISION HISTORY
Revision
Release Date
Summary
1.5
2005/09/08
Approved release.
Single-Chip 10/100 Ethernet Controller w/Power Management
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RTL8100B(L)
Datasheet
Table of Contents
1. GENERAL DESCRIPTION...............................................................................................................1
2. FEATURES..........................................................................................................................................2
3. SYSTEM APPLICATIONS................................................................................................................2
4. PIN ASSIGNMENTS ..........................................................................................................................2
4.1.
4.2.
PACKAGE IDENTIFICATION (100-PIN QFP).............................................................................2
PACKAGE IDENTIFICATION (100-PIN LQFP)...........................................................................3
5. PIN DESCRIPTIONS .........................................................................................................................4
5.1.
5.2.
5.3.
5.4.
5.5.
5.6.
5.7.
POWER MANAGEMENT/ISOLATION INTERFACE.......................................................................4
PCI INTERFACE.......................................................................................................................4
EEPROM INTERFACE.............................................................................................................6
POWER PINS............................................................................................................................6
LED INTERFACE .....................................................................................................................6
ATTACHMENT UNIT INTERFACE..............................................................................................7
TEST AND OTHER PINS...........................................................................................................7
6. REGISTER DESCRIPTIONS............................................................................................................8
6.1.
6.2.
6.3.
6.4.
6.5.
6.6.
6.7.
6.8.
RECEIVE STATUS REGISTER IN RX PACKET HEADER ............................................................10
TRANSMIT STATUS REGISTER...............................................................................................11
ERSR: EARLY RX STATUS REGISTER...................................................................................12
COMMAND REGISTER ...........................................................................................................12
INTERRUPT MASK REGISTER ................................................................................................13
INTERRUPT STATUS REGISTER..............................................................................................13
TRANSMIT CONFIGURATION REGISTER.................................................................................14
RECEIVE CONFIGURATION REGISTER....................................................................................16
9346CR: 93C46 COMMAND REGISTER.................................................................................18
CONFIG 0: CONFIGURATION REGISTER 0............................................................................19
CONFIG 1: CONFIGURATION REGISTER 1............................................................................20
MEDIA STATUS REGISTER.....................................................................................................21
CONFIG 3: CONFIGURATION REGISTER3.............................................................................22
CONFIG 4: CONFIGURATION REGISTER4.............................................................................23
MULTIPLE INTERRUPT SELECT REGISTER .............................................................................24
PCI REVISION ID..................................................................................................................24
TRANSMIT STATUS OF ALL DESCRIPTORS (TSAD) REGISTER ..............................................24
BASIC MODE CONTROL REGISTER........................................................................................25
BASIC MODE STATUS REGISTER...........................................................................................26
AUTO-NEGOTIATION ADVERTISEMENT REGISTER................................................................26
AUTO-NEGOTIATION LINK PARTNER ABILITY REGISTER .....................................................27
AUTO-NEGOTIATION EXPANSION REGISTER.........................................................................28
6.9.
6.10.
6.11.
6.12.
6.13.
6.14.
6.15.
6.16.
6.17.
6.18.
6.19.
6.20.
6.21.
6.22.
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6.23.
6.24.
6.25.
6.26.
6.27.
6.28.
DISCONNECT COUNTER ........................................................................................................28
FALSE CARRIER SENSE COUNTER.........................................................................................28
NWAY TEST REGISTER.........................................................................................................29
RX_ER COUNTER ................................................................................................................29
CS CONFIGURATION REGISTER.............................................................................................29
CONFIG5: CONFIGURATION REGISTER 5 ...............................................................................30
7. EEPROM (93C46) CONTENTS ......................................................................................................31
7.1.
7.2.
SUMMARY OF RTL8100B(L) EEPROM REGISTERS ............................................................33
SUMMARY OF EEPROM POWER MANAGEMENT REGISTERS................................................33
8. PCI CONFIGURATION SPACE REGISTERS.............................................................................34
8.1.
8.2.
8.3.
8.4.
PCI CONFIGURATION SPACE TABLE .....................................................................................34
PCI CONFIGURATION SPACE FUNCTIONS..............................................................................35
DEFAULT VALUES AFTER POWER-ON (RSTB ASSERTED) ....................................................39
PCI POWER MANAGEMENT FUNCTIONS ...............................................................................40
9. BLOCK DIAGRAM..........................................................................................................................44
10.
10.1.
FUNCTIONAL DESCRIPTION......................................................................................45
TRANSMIT OPERATION .........................................................................................................45
RECEIVE OPERATION ............................................................................................................45
BASE LINE WANDER COMPENSATION...................................................................................45
LINE QUALITY MONITOR......................................................................................................45
CLOCK RECOVERY MODULE.................................................................................................46
LOOPBACK OPERATION ........................................................................................................46
TX ENCAPSULATION .............................................................................................................46
COLLISION ............................................................................................................................46
RX DECAPSULATION.............................................................................................................47
FLOW CONTROL....................................................................................................................47
Control Frame Transmission.......................................................................................47
Control Frame Reception ............................................................................................47
LED FUNCTIONS...................................................................................................................48
10/100Mbps Link Monitor...........................................................................................48
LED_RX.......................................................................................................................48
LED_TX .......................................................................................................................49
LED_TX+LED_RX......................................................................................................49
10.2.
10.3.
10.4.
10.5.
10.6.
10.7.
10.8.
10.9.
10.10.
10.10.1.
10.10.2.
10.11.
10.11.1.
10.11.2.
10.11.3.
10.11.4.
11.
12.
APPLICATION DIAGRAM ............................................................................................50
ELECTRICAL CHARACTERISTICS ...........................................................................51
12.1.
12.2.
TEMPERATURE LIMIT RATINGS.............................................................................................51
DC CHARACTERISTICS..........................................................................................................51
12.2.1. Supply Voltage Vcc = 3.0V min. to 3.6V max......................................................................51
12.2.2. Supply Voltage Vdd25 = 2.3V min. to 2.7V max. ................................................................51
12.3.
AC CHARACTERISTICS..........................................................................................................52
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12.3.1. PCI Bus Operation Timing..................................................................................................52
13.
13.1.
13.2.
14.
MECHANICAL DIMENSIONS ......................................................................................58
QFP......................................................................................................................................58
LQFP....................................................................................................................................59
ORDERING INFORMATION.........................................................................................60
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1. General Description
The Realtek RTL8100B(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 RTL8100B(L) also supports shared Boot ROM pins & clock run
pin.
In addition to the ACPI feature, the RTL8100B(L) also supports remote wake-up (including AMD Magic
Packet, LinkChg, and Microsoft® wake-up frame) in both ACPI and APM environments. The
RTL8100B(L) is capable of performing an internal reset through the application of auxiliary power. When
auxiliary power is applied and the main power remains off, the RTL8100B(L) is ready and is 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
RTL8100B(L) LWAKE pin provides motherboards with Wake-On-LAN (WOL) functionality.
The RTL8100B(L) also supports Analog Auto-Power-down, that is, the analog part of the RTL8100B(L)
can be shut down temporarily according to user requirement or when the RTL8100B(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 the power
consumption of the RTL8100B(L) will be negligible. The RTL8100B(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.
PCI Vital Product Data (VPD) is also supported to provide the information that uniquely identifies
hardware (Ex., the OEM brand name of RTL8100B(L) LAN card). The information may consist of part
number, serial number, and other detailed information.
To provide cost down support, the RTL8100B(L) is capable of using a 25MHz crystal or OSC as its internal
clock source.
The RTL8100B(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
RTL8100B(L) is also capable of receiving packets with InterFrameGap no less than 40 Bit-Time. The
RTL8100B(L) is highly integrated and requires no “glue” logic or external memory.
The RTL8100B(L) includes a PCI and Expansion Memory Share Interface (Realtek’s patent pending) for a
boot ROM and can be used in diskless workstations, providing maximum network security and ease of
management.
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Datasheet
2. Features
100-Pin QFP/LQFP
Supports 4 Wake-On-LAN (WOL) signals
(active high, active low, positive pulse, and
negative pulse)
Integrated Fast Ethernet MAC, Physical chip
and transceiver in one chip
Supports auxiliary power-on internal reset, to
be ready for remote wake-up when main
power remains off
10Mbps and 100Mbps operation
Supports 10Mbps and 100Mbps N-way
Auto-negotiation operation
Supports auxiliary power auto-detect, and sets
the related capability of power management
registers in PCI configuration space
PCI local bus single-chip Fast Ethernet
controller
Complies with PCI Revision 2.2
Includes a programmable, PCI burst size and
early Tx/Rx threshold
Supports PCI clock 16.75MHz-40MHz
Supports a 32-bit general-purpose timer with
the external PCI clock as clock source, to
generate timer-interrupt
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
Contains two large (2Kbyte) independent
receive and transmit FIFO’s
RTL8100B(L)'s operational registers
Advanced power saving mode when LAN
function or wakeup function is not used
Supports PCI VPD (Vital Product
Data)
Uses 93C46 (64*16-bit EEPROM) to store
resource configuration, ID parameter, and
VPD data
Supports ACPI, PCI power
management
Supports LED pins for various network
Supports 25MHz crystal or 25MHz OSC as
the internal clock source. The frequency
deviation of either crystal or OSC must be
within 50 PPM.
activity indications
Supports loopback capability
Half/Full duplex capability
Complies with PC99 and PC2001 standards
Supports Full Duplex Flow Control (IEEE
Supports Wake-On-LAN function and remote
wake-up (Magic Packet*, LinkChg and
Microsoft® wake-up frame)
802.3x)
2.5/3.3V power supply with 5V tolerant I/Os
0.25µm CMOS process
3. System Applications
LOM (LAN on Motherboard) and LON (LAN on Notebook) applications.
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Datasheet
4. Pin Assignments
Figure 1. Pin Assignments (100-Pin QFP)
4.1. Package Identification (100-Pin QFP)
Lead (Pb)-free package is indicated by an ‘L’ in the location marked ‘T’ in Figure 1.
‘Green’ package is indicated by a ‘G’ in the location marked ‘T’ in Figure 1.
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Datasheet
Figure 2. Pin Assignments (100-Pin LQFP)
4.2. Package Identification (100-Pin LQFP)
Lead (Pb)-free package is indicated by an ‘L’ in the location marked ‘T’ in Figure 2.
‘Green’ package is indicated by a ‘G’ in the location marked ‘T’ in Figure 2.
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5. Pin Descriptions
5.1. Power Management/Isolation Interface
Symbol
Type
Pin No
Description
PMEB
(PME#)
O/D
57
Power Management Event: Open drain, active low. Used by the
RTL8100B(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 RTL8100B(L) from the PCI
bus. The RTL8100B(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.
LAN WAKE-UP signal: 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.
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.
ISOLATEB
(ISOLATE#)
I
74
64
LWAKE
O
This pin is a 3.3V signaling output pin.
5.2. PCI Interface
Symbol
AD31-0
Type
Pin No
Description
T/S
86,87,89,91-95,100, PCI address and data multiplexed pins.
1,3-5,8-10,23-30,33, Pins AD31-24 are shared with BootROM data pins, while AD16-0 are
36-38,41,42,44,45
98,11,21,32
83
shared with BootROM address pins.
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.
C/BE3-0
CLK
T/S
I
DEVSELB
FRAMEB
S/T/S
S/T/S
15
12
Device Select: As a bus master, the RTL8100B(L) samples this signal
to insure that a PCI target recognizes the destination address for the data
transfer. As a target, the RTL8100B(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
84
Grant: This signal is asserted low to indicate to the RTL8100B(L) that
the central arbiter has granted ownership of the bus to the
RTL8100B(L). This input is used when the RTL8100B(L) is acting as a
bus master.
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Datasheet
Symbol
REQB
Type
T/S
Pin No
85
Description
Request: The RTL8100B(L) will assert this signal low to request the
ownership of the bus from the central arbiter.
IDSEL
INTAB
I
99
81
Initialization Device Select: This pin allows the RTL8100B(L) to
identify when configuration read/write transactions are intended for it.
INTAB: 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
IRDYB
TRDYB
S/T/S
S/T/S
13
14
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 RTL8100B(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.
Parity Error: When the RTL8100B(L) is the bus master and a parity
error is detected, the RTL8100B(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 RTL8100B(L)
continues its operation.
PAR
T/S
20
18
PERRB
S/T/S
When the RTL8100B(L) is the bus target and a parity error is detected,
the RTL8100B(L) asserts this PERRB pin low.
SERRB
O/D
19
System Error: If an address parity error is detected and Configuration
Space Status register bit 15 (detected parity error) is enabled,
RTL8100B(L) asserts both SERRB pin low and bit 14 of Status register
in Configuration Space.
STOPB
RSTB
S/T/S
I
17
82
Stop: Indicates the current target is requesting the master to stop the
current transaction.
Reset: When RSTB is asserted low, the RTL8100B(L) performs
internal system hardware reset. RSTB must be held for a minimum of
120 ns.
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Datasheet
5.3. EEPROM Interface
Symbol
AUX
Type
Pin No
Description
I
50
Aux. Power Detect: This pin is used to notify the RTL8100B(L) of the
existence of Aux. power during initial power-on or a PCI reset.
This pin should be pulled high to the Aux. power via a resistor to detect
the Aux. power. Doing so, will enable wakeup support from ACPI D3
cold or APM power-down. If this pin is not pulled high, the
RTL8100B(L) assumes that no Aux. power exists.
EESK
EEDI
EEDO
EECS
O
O
O, I
48
47
46
49
The MA2-0 pins are switched to EESK, EEDI, EEDO in 93C46
programming or auto-load mode.
O
EEPROM chip select
5.4. Power Pins
Symbol
VDD
Type
Pin No
6,22,34,39,90,97
59,70,75
51,96
58
2,16,31,43,56,
62,66,73,88
Description
+3.3V (Digital)
+3.3V (Analog)
+2.5V (Digital)
+2.5V (Analog)
P
P
P
P
P
AVDD
VDD25
AVDD25
GND
Ground
5.5. LED Interface
Symbol
Type
Pin No
Description
LED0, 1, 2
O
80,79,77
LED pins
LEDS1-0
LED0
LED1
00
01
TX/RX
10
TX
11
TX
TX/RX
LINK100
LINK10
LINK10/100
FULL
LINK10/100
RX
LINK100
LINK10
LED2
During power down mode, the LED’s are OFF.
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Datasheet
5.6. Attachment Unit Interface
Symbol
TXD+
TXD-
RXIN+
RXIN-
X1
Type
Pin No
72
71
68
67
61
Description
100/10BASE-T transmit (Tx) data.
O
O
I
I
I
100/10BASE-T receive (Rx) data.
25 MHz crystal/OSC. input.
X2
O
60
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.
5.7. Test And Other Pins
Symbol
RTT3
Type
TEST
I/O
Pin No
63
Description
Chip test pin.
This pin must be pulled low by a resistor. Please refer to the application
circuit for correct value.
Use this pin and an external PNP type transistor to generate +2.5V for
the RTL8100B(L).
RTSET
VCTRL
NC
65
Analog
-
55
7, 35, 40, 52, 53, 54,
69, 76, 78
Reserved
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Datasheet
6. Register Descriptions
The RTL8100B(L) provides the following set of operational registers mapped into PCI memory space or
I/O space.
Offset
R/W
Tag
Description
0000h
R/W
IDR0
ID Register 0, The ID register0-5 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 EEPROM EthernetID field.
ID Register 1
ID Register 2
ID Register 3
ID Register 4
ID Register 5
Reserved
Multicast Register 0, The MAR register0-7 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
Multicast Register 2
Multicast Register 3
Multicast Register 4
Multicast Register 5
Multicast Register 6
Multicast Register 7
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
0001h
0002h
0003h
0004h
0005h
R/W
R/W
R/W
R/W
R/W
-
IDR1
IDR2
IDR3
IDR4
IDR5
-
0006h-0007h
0008h
R/W
MAR0
0009h
000Ah
000Bh
000Ch
000Dh
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
000Eh
000Fh
0010h-0013h
0014h-0017h
0018h-001Bh
001Ch-001Fh
0020h-0023h
0024h-0027h
0028h-002Bh
002Ch-002Fh
0030h-0033h
0034h-0035h
0036h
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
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
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Datasheet
Offset
R/W
Tag
Description
When written any value, MPC will be reset also.
93C46 Command Register
Configuration Register 0
Configuration Register 1
Reserved
0050h
0051h
0052h
R/W
9346CR
CONFIG0
CONFIG1
-
R/W
R/W
-
0053H
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
0059h
005Ah
R/W
R/W
R/W
-
MSR
CONFIG3
CONFIG4
-
Media Status Register
Configuration register 3
Configuration register 4
Reserved
005Bh
005Ch-005Dh
005Eh
R/W
R
-
MULINT
RERID
-
Multiple Interrupt Select
PCI Revision ID = 10h.
Reserved.
005Fh
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
R
R/W
R
R/W
R
R
R
R
R/W
R
R/W
-
TSAD
BMCR
BMSR
ANAR
ANLPAR
ANER
DIS
FCSC
NWAYTR
REC
CSCR
-
PHY1_PARM
TW_PARM
PHY2_PARM
-
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
False Carrier Sense Counter
N-way Test Register
RX_ER Counter
CS Configuration Register
Reserved.
PHY parameter 1
Twister parameter
PHY parameter 2
R/W
R/W
R/W
-
0081-0083h
0084h
Reserved
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
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)
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
0085h
CRC1
0086h
0087h
CRC2
CRC3
0088h
0089h
008Ah
008Bh
CRC4
CRC5
CRC6
CRC7
Wakeup0
Wakeup1
Wakeup2
Wakeup3
Wakeup4
Wakeup5
Wakeup6
Wakeup7
LSBCRC0
008Ch–0093h
0094h–009Bh
009Ch–00A3h
00A4h–00ABh
00ACh–00B3h
00B4h–00BBh
00BCh–00C3h
00C4h–00CBh
00CCh
Single-Chip 10/100 Ethernet Controller w/Power Management
9
Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
Offset
R/W
Tag
Description
00CDh
00CEh
00CFh
00D0h
00D1h
R/W
LSBCRC1
LSBCRC2
LSBCRC3
LSBCRC4
LSBCRC5
LSBCRC6
LSBCRC7
-
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
Reserved.
R/W
R/W
R/W
R/W
R/W
R/W
-
00D2h
00D3h
00D4h-00D7h
00D8h
00D9h-00FFh
R/W
-
Config5
-
Configuration register 5
Reserved.
6.1. Receive Status Register in Rx Packet Header
Bit
R/W
Symbol
Description
15
R
MAR
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
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 )
12-6
5
-
R
-
ISE
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.
Receive OK: When set, indicates that a good packet is received.
ROK
Single-Chip 10/100 Ethernet Controller w/Power Management
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
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 RTL8100B(L)
when the Transmit Byte Count (bits 12-0) 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
software reset, all bits except OWN bit are reset to “0”.
Bit
R/W
Symbol
Description
31
R
CRS
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 RTL8100B(L)
encountered an "out of window" collision during the transmission of a
packet.
28
R
R
CDH
CD Heart Beat: The NIC watches for a collision signal (ie, CD
Heartbeat signal) during the first 6.4us of the interframe gap following a
transmission. This bit is set if the transceiver fails to send this signal.
This bit is cleared in the 100 Mbps mode.
Number of Collision Count: Indicates the number of collisions
encountered during the transmission of a packet.
27-24
NCC3-0
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 RTL8100B(L) will transmit this packet.
000000 = 8 bytes
These fields count from 000001 to 111111 in unit of 32 bytes.
This threshold must avoid exceeding 2K bytes.
15
14
R
R
TOK
TUN
Transmit OK: Set to 1 indicates that the transmission of a packet was
completed successfully and no transmit underrun has occurred.
Transmit FIFO Underrun: Set to 1 if the Tx FIFO was exhausted
during the transmission of a packet. The RTL8100B(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 RTL8100B(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 (bits 0-12) is written. The default
value is 1.
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.
Single-Chip 10/100 Ethernet Controller w/Power Management
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
6.3. ERSR: Early Rx Status Register
(Offset 0036h, R)
Bit
7-4
3
R/W
-
R
Symbol
Description
-
Reserved
ERGood
Early Rx Good packet: This bit is set whenever a packet is completely
received and the packet is good. Writing a 1 to this bit will clear it.
Early Rx Bad packet: This bit is set whenever a packet is completely
received and the packet is bad. Writing a 1 to this bit will clear it.
Early Rx OverWrite: This bit is set when the RTL8100B(L)'s local
address pointer is equal to CAPR. In the early mode, this is different
from buffer overflow. It happens that the RTL8100B(L) detected an Rx
error and wanted to fill another packet data from the beginning address
of that error packet. Writing a 1 to this bit will clear it.
2
1
R
R
ERBad
EROVW
0
R
EROK
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 RTL8100B(L) will set ROK or RER in ISR and clear
this bit simultaneously. Setting this bit will invoke a ROK interrupt.
6.4. Command Register
(Offset 0037h, R/W)
This register is used for issuing commands to the RTL8100B(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 RTL8100B(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 RTL8100B(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: Rx Buffer Empty. There is no packet stored in the Rx
buffer ring.
Single-Chip 10/100 Ethernet Controller w/Power Management
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
6.5. Interrupt Mask Register
(Offset 003Ch-003Dh, R/W)
This register masks the interrupts that can be generated from the Interrupt Status Register. A hardware reset
will clear all mask bits. Setting a mask bit allows the corresponding bit in the Interrupt Status Register to
cause an interrupt. The Interrupt Status Register bits are always set to 1 if the condition is present,
regardless of the state of the corresponding mask bit.
Bit
R/W
Symbol
Description
15
R/W
SERR
System Error Interrupt: 1 => Enable, 0 => Disable.
14
13
12-7
6
R/W
R/W
-
R/W
R/W
TimeOut
LenChg
-
Time Out Interrupt: 1 => Enable, 0 => Disable.
Cable Length Change Interrupt: 1 => Enable, 0 => Disable.
Reserved
Rx FIFO Overflow Interrupt: 1 => Enable, 0 => Disable.
Packet Underrun/Link Change Interrupt: 1 => Enable, 0 =>
Disable.
FOVW
PUN/LinkChg
5
4
3
2
1
0
R/W
R/W
R/W
R/W
R/W
RXOVW
TER
TOK
RER
ROK
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.
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
R/W
Symbol
Description
15
R/W
SERR
System Error: Set to 1 when the RTL8100B(L) signals a system error
on the PCI bus.
14
R/W
TimeOut
Time Out: Set to 1 when the TCTR register reaches to the value of the
TimerInt register.
13
12 - 7
6
R/W
-
R/W
R/W
LenChg
-
FOVW
Cable Length Change: Cable length is changed after Receiver is enabled.
Reserved
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.
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.
5
PUN/LinkChg
4
3
2
1
R/W
R/W
R/W
R/W
RXOVW
TER
TOK
RER
Receive (Rx) Error: Indicates that a packet has either CRC error or
Single-Chip 10/100 Ethernet Controller w/Power Management
13
Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
Bit
R/W
Symbol
Description
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.
0
R/W
ROK
6.7. Transmit Configuration Register
(Offset 0040h-0043h, R/W)
This register defines the Transmit Configuration for the RTL8100B(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
R/W
-
Symbol
Description
-
Reserved
30-26
R
HWVERID_A
Hardware Version ID A:
Bit30 Bit29 Bit28 Bit27 Bit26 Bit23 Bit22
RTL8139
RTL8139A
RTL8139A-G
RTL8139B
RTL8130
RTL8139C
RTL8100
RTL8100B/
8100B
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
0
0
0
1
1
0
1
0
0
0
1
0
0
1
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
RTL8139C+
RTL8101
1
1
1
1
1
1
0
0
1
1
1
1
0
1
Reserved
Other combination
25-24
R/W
IFG1, 0
Interframe Gap Time: This field allows the user to adjust the
interframe gap time below the standard: 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
100 Mbps
8.4us + 0.4(IFG(1:0)) us
840ns + 40(IFG(1:0)) ns
23-22
21-19
18, 17
R
-
R/W
HWVERID_B
-
LBK1, LBK0
Hardware Version ID B
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
Single-Chip 10/100 Ethernet Controller w/Power Management
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
Bit
R/W
Symbol
Description
16
R/W
CRC
Append CRC: Setting to 1 means that there is no CRC appended at the
end of a packet. Setting to 0 means that there is 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
7-4
R/W
TXRR
Tx Retry Count: These are used to specify additional transmission
retries in multiple 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 equals
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 RTL8100B(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
Single-Chip 10/100 Ethernet Controller w/Power Management
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
6.8. Receive Configuration Register
(Offset 0044h-0047h, R/W)
This register is used to set the receive configuration for the RTL8100B(L). Receive properties such as
accepting error packets, runt packets, setting the receive drain threshold etc. are controlled here.
Bit
31-28
27-24
R/W
-
R/W
Symbol
Description
-
Reserved
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
RTL8100B(L)'s definition.
0000 = no early rx threshold
0010 = 2/16
0100 = 4/16
0110 = 6/16
1000 = 8/16
1010 = 10/16
1100 = 12/16
1110 = 14/16
Reserved
0001 = 1/16
0011 = 3/16
0101 = 5/16
0111 = 7/16
1001 = 9/16
1011 = 11/16
1101 = 13/16
1111 = 15/16
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
protocols (IPX, IP, NDIS, etc) invoke an early interrupt according to
RCR<ERTH[3:0]> setting in early mode. The packets of unfamiliar
protocols will invoke an early interrupt according to the setting of
MULINT<MISR[11:0]>.
16
R/W
R/W
RER8
The RTL8100B(L) receives the error packet whose length is larger than
8 bytes after setting the RER8 bit to 1.
The RTL8100B(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 RTL8100B(L)
receives an error packet whose length is larger than 8 bytes. The RER8
is “ Don’t care “ in this situation.
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 RTL8100B(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 memory. This
field sets the threshold level according to the following table:
000 = 16 bytes
15-13
RXFTH2, 1, 0
001 = 32 bytes
010 = 64 bytes
011 = 128 bytes
100 = 256 bytes
101 = 512 bytes
110 = 1024 bytes
111 = no rx threshold. The RTL8100B(L) begins the transfer of data
after having received a whole packet in the FIFO.
Rx Buffer Length: This field indicates the size of the Rx ring buffer.
00 = 8k + 16 byte
12-11
R/W
RBLEN1, 0
Single-Chip 10/100 Ethernet Controller w/Power Management
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
Bit
R/W
Symbol
Description
01 = 16k + 16 byte
10 = 32K + 16 byte
11 = 64K + 16 byte
10-8
R/W
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
When set to 0: The RTL8100B(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.
When set to 1: The RTL8100B(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.
6
5
-
-
Reserved
R/W
AER
Accept Error Packet: When set to 1, all packets with CRC error,
alignment error, and/or collided fragments will be accepted. When set to
0, all packets with CRC error, alignment error, and/or collided
fragments will be rejected.
4
R/W
AR
Accept Runt: 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. Set to 1 to accept runt packets.
Accept Broadcast packets: Set to 1 to accept, 0 to reject.
Accept Multicast packets: Set to 1 to accept, 0 to reject.
Accept Physical Match packets: Set to 1 to accept, 0 to reject.
Accept All Packets: Set to 1 to accept all packets with a physical
destination address, 0 to reject.
3
2
1
0
R/W
R/W
R/W
R/W
AB
AM
APM
AAP
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
6.9. 9346CR: 93C46 Command Register
(Offset 0050h, R/W)
This register is used for issuing commands to the RTL8100B(L). These commands are issued by setting the
corresponding bits for the function. A warm software reset along with individual reset and enable/disable
for transmitter and receiver are provided as well.
Bit
R/W
Symbol
Description
7-6
R/W
EEM1-0
Operating Mode: These 2 bits select the RTL8100B(L) operating
mode.
EEM1
EEM0
Operating Mode
0
0
Normal (RTL8100B(L) network/host communication
mode)
0
1
Auto-load: Entering this mode will make the
RTL8100B(L) load the contents of 93C46 like when the
RSTB signal is asserted. This auto-load operation will
take about 2 ms. After it is completed, the RTL8100B(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 programming: In this mode, both network and host
bus master operations are disabled. The 93C46 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 RTL8100B(L) must be placed in this mode.
This will prevent RTL8100B(L)'s configurations from
accidental change.
4-5
3
2
1
0
-
-
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 programming mode.
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RTL8100B(L)
Datasheet
6.10. CONFIG 0: Configuration Register 0
(Offset 0051h, R/W)
Bit
R/W
Symbol
Description
7
6
R
R
SCR
PCS
Scrambler Mode: Always 0.
PCS Mode: Always 0.
5
R
T10
10Mbps Mode: Always 0.
4-3
2-0
R
R
PL1, PL0
BS2, BS1, BS0
Select 10Mbps medium type: Always (PL1, PL0) = (1, 0)
Select Boot ROM size (Autoloaded from EEPROM)
BS2
0
BS1
0
BS0
0
Description
No Boot ROM
8K Boot ROM
16K Boot ROM
32K Boot ROM
64K Boot ROM
128K Boot ROM
unused
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
unused
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
6.11. CONFIG 1: Configuration Register 1
(Offset 0052h, R/W)
Bit
7-6
5
R/W
R/W
R/W
Symbol
LEDS1-0
DVRLOAD
Description
Refer to LED PIN definition. These bits initial value come from 93C46.
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
RTL8100B(L) will clear this bit automatically.
4
R/W
LWACT
LWAKE active mode: The LWACT bit and LWPTN bit in 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 150ms.
The default value of each of these two bits is 0, i.e., the default output signal of
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
R/W
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.
Set to enable Vital Product Data: The VPD data is stored in 93C46 from within
offset 40h-7Fh.
0
R/W
PMEn
Power Management Enable:
Writable 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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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
6.12. Media Status Register
(Offset 0058h, R/W)
This register allows configuration 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.
RTL8100B(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.
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 RTL8100B(L) sends pause packet.
Reset, when RTL8100B(L) sends a timer done packet.
Receive Pause Flag: Set, when RTL8100B(L) is in backoff state
because a pause packet was received. Reset, when pause state is clear.
0
R
RXPF
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RTL8100B(L)
Datasheet
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.
0: No delay
1: delay one clock from GNT assertion.
6
R/W
PARM_En
Parameter Enable: (Used in 100Mbps mode only)
This set to 0 and the 9346CR register EEM1=EEM0=1 will enable the PHY1_PARM,
PHY2_PARM, and TW_PARM registers to be written via software.
This set to 1 will allow parameters to be auto-loaded from the 93C46 and
disable writing to the PHY1_PARM, PHY2_PARM and TW_PARM
registers via software.
The PHY1_PARM and PHY2_PARM can be auto-loaded from the
EEPROM in this mode. The parameter auto-load process is executed every
time the Link is OK in 100Mbps mode.
5
R/W
Magic
Magic Packet: This bit is valid when the PWEn bit of the CONFIG1
register is set. The RTL8100B(L) will assert the PMEB signal to wakeup the
operating system when the Magic Packet is received.
Once the RTL8100B(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 of:
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 similar to 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
4
R/W
LinkUp
Link Up: This bit is valid when the PWEn bit of CONFIG1 register is set.
The RTL8100B(L), in adequate power state, will assert the PMEB signal to
wakeup the operating system when the cable connection is re-established.
Reserved
3-1
0
-
R
-
FBtBEn
Fast Back to Back Enable: Set to 1 to enable Fast Back to Back.
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RTL8100B(L)
Datasheet
6.14. CONFIG 4: Configuration Register4
(Offset 005Ah, R/W)
Bit
R/W
Symbol
Description
7
R/W
RxFIFOAutoClr
Set to 1, the RTL8100B(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
(93C46).
1: Turn off the analog power of the RTL8100B(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 RTL8100B(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. Refer to 8.4 PCI Power Management Functions, page 40 for a
detailed description.
Set to 0: The RTL8100B(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.
3
2
1
0
-
-
Reserved
R/W
-
R/W
LWPTN
-
PBWakeup
LWAKE pattern: Please refer to LWACT bit in CONFIG1 register.
Reserved
Pre-Boot Wakeup: The initial value comes from EEPROM autoload.
1: Pre-Boot Wakeup disabled. (suitable for CardBus and MiniPCI
applications)
0: Pre-Boot Wakeup enabled.
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RTL8100B(L)
Datasheet
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 the RTL8100B(L),
RCR<ERTH[3:0]> won't 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
15-12
11-0
R/W
-
R/W
Symbol
-
MISR11-0
Description
Reserved
Multiple Interrupt Select: Indicates that the RTL8100B(L) makes an
rx interrupt after RTL8100B(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 RTL8100B(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.
Note: The above is true when MulERINT=0 (bit17, RCR). When MulERINT=1, any received packet
invokes early interrupt according to the 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. Transmit Status of All Descriptors (TSAD) Register
(Offset 0060h-0061h, R/W)
Bit
15
14
13
12
11
10
9
8
7
6
5
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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
4
3
2
1
0
R
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RTL8100B(L)
Datasheet
6.18. Basic Mode Control Register
(Offset 0062h-0063h, R/W)
Bit
15
Name
Reset
Description/Usage
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.
Default/Attribute
0, RW
14
13
-
-
Reserved
This bit sets the network speed. 1 = 100Mbps; 0 = 10Mbps. This bit‘s
initial value comes from 93C46.
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.
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. 0 = normal operation ; 1 = full-duplex.
This bit‘s initial value comes from 93C46.
0, RW
Restart Auto
Negotiation
Duplex Mode
8
0, RW
If bit12 = 1, read = status write = register value.
If bit12 = 0, read = write = register value.
7-0
-
-
Reserved
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RTL8100B(L)
Datasheet
6.19. Basic Mode Status Register
(Offset 0064h-0065h, R)
Bit
15
14
Name
100Base-T4
100Base_TX_ FD
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
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;
Default/Attribute
0, RO
1, RO
13
12
11
1, RO
1, RO
1, RO
100BASE_TX_HD
10Base_T_FD
10_Base_T_HD
10-6
5
-
-
0, RO
Auto Negotiation
Complete
Remote Fault
4
3
2
0, RO
1, RD
0, RO
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
6.20. Auto-Negotiation Advertisement Register
(Offset 0066h-0067h, R/W)
This register contains the advertised abilities of this device as they will be transmitted to its link partner
during Auto-negotiation.
Bit
15
Name
NP
Description/Usage
Default/Attribute
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.
T4
1, RW
TXFD
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RTL8100B(L)
Datasheet
Bit
7
Name
TX
Description/Usage
1 = 100Base-TX is supported by local node;
Default/Attribute
1, RW
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;
6
5
1, RW
1, RW
10FD
10
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-Negotiation Link Partner Ability Register
(Offset 0068h-0069h, R)
This register contains the advertised abilities of the Link Partner as received during Auto-negotiation. The
content changes after the successful Auto-negotiation if Next-pages are supported.
Bit
15
Name
NP
Description/Usage
Default/Attribute
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
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RTL8100B(L)
Datasheet
6.22. Auto-Negotiation Expansion Register
(Offset 006Ah-006Bh, R)
This register contains additional status for NWay auto-negotiation.
Bit
15-5
4
Name
-
MLF
Description/Usage
Reserved, This bit is always set to 0.
Status indicating if a multiple link fault has occurred.
1 = fault occurred; 0 = no fault occurred.
Default/Attribute
-
0, RO
3
2
1
Status indicating if the link partner supports Next Page negotiation.
1 = supported; 0 = not supported.
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.
0, RO
0, RO
0, RO
LP_NP_ABLE
NP_ABLE
PAGE_RX
0
0, RO
LP_NW_ABLE
6.23. Disconnect Counter
(Offset 006Ch-006Dh, R)
Bit
15-0
Name
DCNT
Description/Usage
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.
Default/Attribute
h'[0000],
R
6.24. False Carrier Sense Counter
(Offset 006Eh-006Fh, R)
This counter provides information required to implement the “FalseCarriers” attribute within the MAU managed object class of
Clause 30 of IEEE 802.3u specification.
Bit
Name
Description/Usage
Default/Attribute
15-0
This 16-bit counter increments by 1 for each false carrier event. It is
cleared to zero by read command.
h'[0000],
R
FCSCNT
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RTL8100B(L)
Datasheet
6.25. NWay Test Register
(Offset 0070h-0071h, R/W)
Bit
15-8
7
6-4
3
2
1
0
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
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
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 CRC error packet
received. Collision packets are not counted as CRC error packets. It
is cleared to zero by a read command.
h'[0000], R
RXERCNT
6.27. CS Configuration Register
(Offset 0074h-0075h, R/W)
Bit
15
14-10
9
Name
Testfun
-
Description/Usage
1 = Auto-neg speeds up internal timer
Default/Attribute
0,WO
-
1, RW
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.
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
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.
0, RW
-
0, RO
F_Connect
-
Con_status
2
0, RW
Con_status_En
1
0
Reserved
Bypass Scramble
-
-
0, RW
PASS_SCR
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RTL8100B(L)
Datasheet
6.28. Config5: Configuration Register 5
(Offset 00D8h, R/W)
This register, unlike other Config registers, is not protected by 93C46 Command register. I.e. 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:
1: Enable Broadcast Wakeup Frame with mask bytes of only DID
field = FF FF FF FF FF FF.
0: Default value. Disable 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
Multicast Wakeup Frame:
1: Enable Multicast Wakeup Frame with mask bytes of only DID
field, which is a multicast address.
0: Default value. Disable 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:
1: Enable Unicast Wakeup Frame with mask bytes of only DID
field, which is its own physical address.
0: Default value. Disable 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.
FIFO Address Pointer: (Realtek internal use only to test FIFO SRAM)
1: Both Rx and Tx FIFO address pointers are updated in descending
way from 1FFh and downwards. The initial FIFO address pointer is
1FFh.
FIFOAddrPtr
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.
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:
1: Disable.
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.
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
0
R/W
R/W
LANWake
PME_STS
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.
¾
¾
Config5 register, offset D8h: (SYM_ERR register is changed to Config5, the function of SYM_ERR register is no longer
supported by RTL8100B(L).)
The 3 bits (bit2-0) are auto-loaded from EEPROM Config5 byte to RTL8100B(L) Config5 register.
Single-Chip 10/100 Ethernet Controller w/Power Management
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RTL8100B(L)
Datasheet
7. EEPROM (93C46) Contents
The 93C46 is a 1K-bit EEPROM. Although it is addressed by words, we list its contents by bytes below for
convenience.
The 93C46 is a 1K-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 the 9346CR,
the RTL8100B(L) performs a series of EEPROM read operations from the 93C46 addresses 00H to 31H.
It is suggested to obtain Realtek approval before changing the default settings of the EEPROM.
Bytes
00h
01h
Contents
29h
Description
These 2 bytes contain the ID code word for the RTL8100B(L). The RTL8100B(L) will
load the contents of EEPROM into the corresponding location if the ID word (8129h) is
right, otherwise, the RTL8100B(L) will not proceed with the EEPROM autoload
process.
81h
02h-05h
-
Reserved. The RTL8100B(L) no longer supports autoload of Vender ID and Device ID.
The default values of VID and DID are hex 10EC and 8139, respectively.
PCI Subsystem Vendor ID, PCI configuration space offset 2Ch-2Dh.
PCI Subsystem ID, PCI configuration space offset 2Eh-2Fh.
06h-07h
08h-09h
0Ah
0Bh
0Ch
SVID
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
RTL8100B(L) supports flow control (IEEE 802.3x). In this case, Bit 10=1 in the
Auto-negotiation Advertisement Register (offset 66h-67h), and Bit 1=1 means the local
RTL8100B(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.
RTL8100B(L) Configuration register 3, operational register offset 59H.
Ethernet ID, After auto-load command or hardware reset, RTL8100B(L) loads Ethernet
ID to IDR0-IDR5 of RTL8100B(L)'s I/O registers.
0Dh
0Eh-13h
CONFIG3
Ethernet ID
14h
15h
16h-17h
CONFIG0
CONFIG1
PMC
RTL8100B(L) Configuration register 0, operational registers offset 51h.
RTL8100B(L) Configuration register 1, operational registers offset 52h.
Reserved. Do not change this filed without Realtek approval.
Power Management Capabilities. PCI configuration space address 52h and 53h.
18h
19h
PMCSR
Reserved. Do not change this filed without Realtek approval.
Power Management Control/Status. PCI configuration space address 55h.
Reserved. Do not change this filed without Realtek approval.
CONFIG4
RTL8100B(L) Configuration register 4, operational registers offset 5Ah.
1Ah-1Dh
PHY1_PARM_U Reserved. Do not change this filed without Realtek approval.
PHY Parameter 1-U for RTL8100B(L). Operational registers of the RTL8100B(L) are
from 78h to 7Bh.
1Eh
1Fh
PHY2_PARM_U Reserved. Do not change this filed without Realtek approval.
PHY Parameter 2-U for RTL8100B(L). Operational register of the RTL8100B(L) is
80h.
CONFIG_5
Do not change this filed without Realtek approval.
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RTL8100B(L)
Datasheet
Bytes
Contents
Description
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.
Reserved. Do not change this filed without Realtek approval.
Twister Parameter U for RTL8100B(L). Operational registers of the RTL8100B(L) are
7Ch-7Fh.
Reserved. Do not change this filed without Realtek approval.
Twister Parameter T for RTL8100B(L). Operational registers of the RTL8100B(L) are
7Ch-7Fh.
20h-23h
24h-27h
28h-2Bh
2Ch
TW_PARM_U
TW_PARM_T
PHY1_PARM_T Reserved. Do not change this filed without Realtek approval.
PHY Parameter 1-T for RTL8100B(L). Operational registers of the RTL8100B(L) are
from 78h to 7Bh.
PHY2_PARM_T Reserved. Do not change this filed without Realtek approval.
PHY Parameter 2-T for RTL8100B(L). Operational register of the RTL8100B(L) is 80h.
2Dh-31h
32h-33h
-
Reserved.
CheckSum
Reserved. Do not change this filed without Realtek approval.
Checksum of the EEPROM content.
34h-3Eh
3Fh
-
Reserved. Do not change this filed without Realtek approval.
Reserved. Do not change this filed without Realtek approval.
PXE ROM code parameter.
PXE_Para
40h-7Fh
VPD_Data
VPD data filed. Offset 40h is the start address of the VPD data.
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RTL8100B(L)
Datasheet
7.1. Summary of RTL8100B(L) EEPROM Registers
Offset
Name
Type
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
00h-05h IDR0 – IDR5 R/W*
51h
52h
58h
63H
59h
5Ah
CONFIG0
CONFIG1
R
-
-
-
-
-
-
-
-
BS2
-
BS1
-
BS0
-
*
-
W
R
LEDS1
LEDS1
LEDS0 DVRLOAD LWACT MEMMAP IOMAP
LEDS0 DVRLOAD LWACT
VPD
VPD
PMEN
PMEN
*
-
-
W
R
TxFCE
TxFCE
RxFCE
RxFCE
-
-
-
-
-
-
-
-
*
W
R
MSRBMCR
-
-
-
-
Spd_Set
Spd_Set
ANE
ANE
-
-
-
-
-
-
FUDUP
FUDUP
*
W
R
CONFIG3
CONFIG4
GNTDel PARM_EN
Magic
Magic
LinkUp
LinkUp
-
-
-
-
-
-
FBtBEn
-
*
-
PARM_EN
W
* RxFIFO
AutoClr
AnaOff
LongWF LWPME
-
LWPTN
-
-
R/W
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**
D8h
CONFIG5
*
-
-
-
-
-
LDPS LANWa PME_ST
ke
R/W
S
*'
*
Registers marked with type = 'W can be written only if bits EEM1=EEM0=1.
**'
** Registers marked with type = 'W can be written only if bits EEM1=EEM0=1 and CONFIG3<PARM_EN> = 0.
7.2. Summary of EEPROM Power Management Registers
Configuration Name Type
Space offset
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
52h
53h
PMC
R
R
Aux_I_b1 Aux_I_b0
PME_D3cold PME_D3ho PME_D2 PME_D1 PME_D0
DSI
Reserved PMECLK
Version
D1
D2
Aux_I_b2
t
55h
PMCS
R
R
W
PME_Status
PME_Status
-
-
-
-
-
-
-
-
-
-
-
-
PME_En
PME_En
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
8. PCI Configuration Space Registers
8.1. PCI Configuration Space Table
No.
00h
01h
02h
03h
Name
Type
R
Bit7
Bit6
Bit5
Bit4
0
1
1
0
0
-
0
Bit3
1
0
1
0
-
-
0
Bit2
Bit1
Bit0
0
0
1
1
VID
1
0
0
1
0
-
0
-
1
0
0
0
1
0
1
0
0
-
0
-
0
1
0
0
0
0
0
0
0
R
R
R
R
W
R
W
R
R
W
R
DID
04h Command
PERRSP
PERRSP
BMEN MEMEN
BMEN MEMEN
IOEN
IOEN
05h
0
-
0
0
-
0
FBTBEN SERREN
-
-
0
-
0
SERREN
06h
07h
Status
FBBC
DPERR
DPERR
NewCap
0
SSERR
SSERR
RMABT RTABT
RMABT RTABT
STABT
STABT
DST1
-
0
DST0
-
0
DPD
DPD
0
08h Revision ID
0
0
0
0
0
09h
0Ah
0Bh
0Ch
0Dh
PIFR
SCR
BCR
CLS
LTR
R
R
R
R
R
W
R
R
R
W
R/W
R/W
R/W
R
W
R/W
R/W
R/W
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
LTR0
LTR0
0
LTR7
LTR7
0
0
0
-
IOAR15
IOAR23
IOAR31
0
LTR6
LTR6
0
0
0
-
IOAR14
IOAR22
IOAR30
0
LTR5
LTR5
0
0
0
-
LTR4
LTR4
0
0
0
-
LTR3
LTR3
0
0
0
-
LTP2
LTP2
0
0
0
-
LTR1
LTR1
0
0
0
-
0Eh
0Fh
10h
HTR
BIST
IOAR
0
IOIN
-
IOAR8
11h
12h
13h
IOAR13 IOAR12 IOAR11 IOAR10
IOAR21 IOAR20 IOAR19 IOAR18 IOAR17 IOAR16
IOAR29 IOAR28 IOAR27 IOAR26 IOAR25 IOAR24
IOAR9
14h MEMAR
0
-
0
-
0
-
0
-
0
-
MEMIN
-
MEM8
-
-
15h
16h
17h
18h-2
Bh
MEM15
MEM23
MEM31
MEM14
MEM22
MEM30
MEM13 MEM12 MEM11 MEM10
MEM9
MEM21 MEM20 MEM19 MEM18 MEM17 MEM16
MEM29 MEM28 MEM27 MEM26 MEM25 MEM24
RESERVED
2Ch
2Dh
2Eh
2Fh
30h-3 BMAR
3h
SVID
SMID
R
R
R
R
-
SVID7
SVID15
SMID7
SMID15
-
SVID6
SVID14
SMID6
SMID14
-
SVID5
SVID13 SVID12 SVID11 SVID10
SMID5 SMID4 SMID3 SMID2
SMID13 SMID12 SMID11 SMID10
SVID4
SVID3
SVID2
SVID1
SVID9
SMID1
SMID9
-
SVID0
SVID8
SMID0
SMID8
-
-
-
-
-
34h
35h-3
Bh
Cap_Ptr
R
0
1
0
1
0
0
0
0
RESERVED
3Ch
3Dh
3Eh MNGNT
3Fh MXLAT
ILR
IPR
R/W
R
R
IRL7
ILR6
ILR5 ILR4
ILR3
ILR2
ILR1
ILR0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
0
0
R
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RTL8100B(L)
Datasheet
No.
40h–
4Fh
50h
51h
52h
53h
54h
Name
Type
Bit7
Bit6
Bit5
RESERVED
Bit4
Bit3
Bit2
Bit1
Bit0
PMID
NextPtr
PMC
R
R
R
R
R
W
R
W
0
0
0
0
0
0
DSI
0
0
0
0
0
0
0
0
1
0
Aux_I_b1 Aux_I_b0
PME_D3cold PME_D3hot PME_D2 PME_D1 PME_D0
Reserved PMECLK
Version
D1
D2
0
-
-
-
Aux_I_b2
PMCSR
0
-
0
-
-
0
-
-
0
-
-
0
-
-
Power State
Power State
-
55h
PME_Status
PME_Status
PME_En
PME_En
-
-
-
-
-
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
6
R5
R4
R3
R2
R1
R0
63h
R/W
Flag
VPDADDR VPDADD VPDADD VPDADD VPDADD VPDADD VPDADD
14
R13
R12
R11
R10
R9
R8
64h VPD Data R/W
Data7
Data15
Data23
Data31
Data6
Data14
Data22
Data30
Data5
Data4
Data3
Data2
Data1
Data9
Data17
Data25
Data0
Data8
Data16
Data24
65h
66h
R/W
R/W
R/W
Data13
Data21
Data29
Data12
Data20
Data28
Data11
Data19
Data27
Data10
Data18
Data26
67h
68h-F
Fh
RESERVED
8.2. PCI Configuration Space Functions
The PCI configuration space is intended for configuration, initialization, and catastrophic error handling
functions. The functions of the RTL8100B(L)'s configuration space are described below.
VID: Vendor ID. This field will default to a value of 10ECh which is Realtek Semiconductor's PCI Vendor
ID.
DID: Device ID. This field will default to a value of 8139h.
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.
Bit
15-10
9
Symbol
-
FBTBEN
Description
Reserved
Fast Back-To-Back Enable: Config3<FBtBEn>=0:Read as 0. Write operation has no effect. The
RTL8100B(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.
8
SERREN
System Error Enable: When set to 1, the RTL8100B(L) asserts the SERRB pin when it detects a
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
parity error on the address phase (AD<31:0> and CBEB<3:0> ).
7
6
ADSTEP
PERRSP
Address/Data Stepping: Read as 0, write operation has no effect. The RTL8100B(L) never make
address/data stepping.
Parity Error Response: When set to 1, the RTL8100B(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 RTL8100B(L) continues normal operation.
Parity checking is disabled after hardware reset (RSTB).
5
VGASNOO
P
VGA palette SNOOP: Read as 0, write operation has no effect.
4
3
MWIEN
SCYCEN
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 RTL8100B(L) ignores all special
cycle operation.
2
BMEN
Bus Master Enable: When set to 1, the RTL8100B(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 RTL8100B(L) responds to memory space accesses. When
set to 0, the RTL8100B(L) ignores memory space accesses.
I/O Space Access: When set to 1, the RTL8100B(L) responds to IO space access. When set to 0, the
RTL8100B(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.
Bit
Symbol
Description
15
DPERR
Detected Parity Error: When set indicates that the RTL8100B(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 RTL8100B(L) asserted the system error pin,
SERRB. Writing a 1 clears this bit to 0.
Received Master Abort: When set indicates that the RTL8100B(L) terminated a master transaction
with master abort. Writing a 1 clears this bit to 0.
Received Target Abort: When set indicates that the RTL8100B(L) master transaction was terminated
due to a target abort. Writing a 1 clears this bit to 0.
Signaled Target Abort: Set to 1 whenever the RTL8100B(L) terminates a transaction with target abort.
Writing a 1 clears this bit to 0.
14
13
SSERR
RMABT
RTABT
STABT
DST1-0
DPD
12
11
10-9
8
Device Select Timing: These bits encode the timing of DEVSELB. They are set to 01b (medium),
indicating the RTL8100B(L) will assert DEVSELB two clocks after FRAMEB is asserted.
Data Parity error Detected:
This bit sets when the following conditions are met:
► The RTL8100B(L) asserts parity error(PERRB pin) or it senses the assertion of PERRB pin by another device.
► The RTL8100B(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 RTL8100B(L) does
not support UDF.
5
66MHz
NewCap
-
66 MHz Capable: Read as 0, write operation has no effect. The RTL8100B(L) has no 66MHz
capability.
New Capability: Config3<PMEn>=0, Read as 0, write operation has no effect. Config3<PMEn>=1,
Read as 1.
4
0-3
Reserved
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RTL8100B(L)
Datasheet
RID: Revision ID Register
The Revision ID register is an 8-bit register that specifies the RTL8100B(L) controller revision number.
PIFR: Programming Interface Register
The programming interface register is an 8-bit register that identifies the programming interface of the RTL8100B(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 RTL8100B(L). SCR = 00h indicates that the
RTL8100B(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 RTL8100B(L). BCR = 02h indicates
that the RTL8100B(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 RTL8100B(L).
When the RTL8100B(L) asserts FRAMEB, it enables its latency timer to count. If the RTL8100B(L)
deasserts FRAMEB prior to count expiration, the content of the latency timer is ignored. Otherwise,
after the count expires, the RTL8100B(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.
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 RTL8100B(L)
requires 256 bytes of IO space.
1
0
-
Reserved
IOIN
IO Space Indicator: Read only. Set to 1 by the RTL8100B(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 RTL8100B(L) operational registers. This
register must be initialized prior to accessing any RTL8100B(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 RTL8100B(L) requires 256 bytes of
Memory Space.
3
MEMPF
Memory Prefetchable: Read only. Set to 0 by the RTL8100B(L).
2-1
MEMLOC
Memory Location Select: Read only. Set to 0 by the RTL8100B(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 RTL8100B(L) to indicate that it is capable of
being mapped into memory space.
0
MEMIN
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
SVID: Subsystem Vendor ID. This field will be set to a value corresponding to PCI Subsystem 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
Subsystem Vendor ID.
SMID: Subsystem ID. This field will be set to value corresponding to PCI Subsystem ID in the external EEPROM. If there is no
EEPROM, this field will default to a value of 8139h.
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 RTL8100B(L).
IPR: Interrupt Pin Register
The Interrupt Pin register is an 8-bit register indicating the interrupt pin used by the RTL8100B(L). The RTL8100B(L)
uses INTA interrupt pin. Read only. IPR = 01H.
MNGNT: Minimum Grant Timer: Read only
Specifies how long a burst period the RTL8100B(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 RTL8100B(L) needs to gain access to the PCI bus in unit 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.
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RTL8100B(L)
Datasheet
8.3. Default Values after Power-on (RSTB Asserted)
PCI Configuration Space Table
No.
00h
01h
02h
03h
04h
Name
VID
Type
R
R
R
R
R
W
R
W
R
R
Bit7
1
0
0
1
0
-
0
Bit6
1
0
0
0
0
Bit5
Bit4
0
1
1
0
0
-
0
Bit3
1
0
1
0
0
-
0
Bit2
Bit1
Bit0
1
0
1
0
0
-
0
-
0
0
1
0
0
0
0
0
0
0
0
0
0
0
1
1
0
DID
Command
PERRSP
BMEN MEMEN IOEN
05h
0
-
0
0
0
-
0
0
0
-
0
1
0
-
0
0
-
NewCap
0
-
0
0
SERREN
06h
07h
Status
0
0
W
R
R
R
R
DPERR
SSERR RMABT RTABT
STABT
-
0
0
0
0
0
0
-
0
0
0
1
0
0
DPD
0
0
0
0
0
0
08h
09h
0Ah
0Bh
0Ch
0Dh
Revision ID
PIFR
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SCR
BCR
CLS
LTR
0
0
0
0
0
0
R
R
0
0
0
0
0
0
W
R
R
LTR7
LTR6
LTR5
LTR4
LTR3
LTP2
LTR1
LTR0
0Eh
0Fh
10h
11h
12h
13h
14h
15h
16h
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/W
R/W
R/W
R
R/W
R/W
R/W
MEMAR
17h
18h-2Bh
2Ch
2Dh
2Eh
2Fh
RESERVED(ALL 0)
SVID
SMID
R
R
R
R
-
1
0
0
1
-
1
0
0
0
-
1
0
0
1
1
0
1
0
-
1
0
0
0
-
0
0
0
0
-
0
1
1
1
-
1
1
0
0
30h-33h
34h
BMAR
Cap-Ptr
-
-
R
Ptr7
Ptr6
Ptr5
Ptr4
Ptr3
Ptr2
Ptr1
Ptr0
35h-3Bh
3Ch
3Dh
3Eh
3Fh
RESERVED(ALL 0)
ILR
IPR
MNGNT
MXLAT
R/W
R
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
0
0
0
1
0
0
R
40h-FFh
RESERVED(ALL 0)
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RTL8100B(L)
Datasheet
8.4. PCI Power Management Functions
The RTL8100B(L) complies with ACPI (Rev 1.1), PCI Power Management (Rev 1.1), and Device Class
Power Management Reference Specification (V1.0a), such as to support OS Directed Power Management
(OSPM) environment. To support this, the RTL8100B(L) provides the following capabilities:
¾ The RTL8100B(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
restore to working state to process the incoming jobs.
¾ The RTL8100B(L) can be isolated from the PCI bus automatically with the auxiliary power circuit
when the PCI bus is in B3 state, i.e. the power on the PCI bus is removed. When the motherboard
includes a built-in RTL8100B(L) single-chip fast Ethernet controller, the RTL8100B(L) can be
disabled when needed by pulling the isolate pin low to 0V.
When the RTL8100B(L) is in power down mode (D1 ~ D3),
♦ The Rx state machine is stopped, and the RTL8100B(L) keeps monitoring the network for wakeup
event such Magic Packet, Wakeup Frame, and/or Link Change, in order to wake up the system.
When in power down mode, the RTL8100B(L) will not reflect the status of any incoming packet in
the ISR register and will not receive any packet into Rx FIFO.
♦ The FIFO status and the packets which are already received into Rx FIFO before entering into power
down mode, are kept by the RTL8100B(L) during power down mode
♦ The transmission is stopped. The action of PCI bus master mode is stopped, too. The Tx FIFO is
kept.
♦ After restoring to a D0 state, the PCI bus master mode continues to transfer the data, which is not yet
moved into 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.
Ex.:
1. If 9346 D3c_support_PME = 1,
¾ Aux. power exists, then PMC in PCI config space is the same as 9346 PMC, i.e. if 9346
PMC = C2 F7, then PCI PMC = C2 F7.
¾ 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,
¾ 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.
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RTL8100B(L)
Datasheet
¾ 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”.
Link Wakeup occurs only when the following conditions are approved,
♦ The LinkUp bit (CONFIG3#4) is set to 1, the PMEn bit (CONFIG1#0) is set to 1, and the
RTL8100B(L) is in isolation state, or the PME# can be asserted in current power state.
♦ The Link status is re-established.
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 CRC error.
♦ The Magic bit (CONFIG3#5) is set to 1, the PMEn bit (CONFIG1#0) is set to 1, and the
RTL8100B(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.
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.)
z 8-bit CRC:
This 8-bit CRC logic is use 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 RTL8100B(L) to check if there is Wakeup Frame packet
coming in.
z 16-bit CRC: (Long Wakeup Frame mode, the mask bytes cover from offset 0 to 127)
Long Wakeup Frame: The RTL8100B(L) also supports 3 long Wakeup Frames. If the range of
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 frame 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 calculated 16-bit CRC should
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RTL8100B(L)
Datasheet
be put into register CRC2 and LSBCRC2 respectively. The mask bytes (16 bytes) should be store
to register Wakeup2 and Wakeup3. The CRC3 and LSBCRC3 have no meaning in this case and
should be reset to 0. So as the long Wakeup Frame pairs, wakeup frame 4 and 5, wakeup frame 6
and 7. The CRC5, CRC7, LSBCRC5, and LSBCRC7 have no meaning in this case and should be
reset to 0, if the RTL8100B(L) is set to support long Wakeup Frame. In this case, the
RTL8100B(L) support 5 wakeup frames, that are 2 normal wakeup frames and 3 long wakeup
frames.
** 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 matches with 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 are approved,
The PMEn bit (bit0, CONFIG1) is set to 1.
The PME_En bit (bit8, PMCSR) in PCI Configuration Space is set to 1.
The RTL8100B(L) may assert PME# in current power state, or the RTL8100B(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.
* Writing a 1 to the PME_Status (bit15) of PMCSR register in the PCI Configuration Space will
clear this bit and cause the RTL8100B(L) to stop asserting a PME# (if enabled).
When the RTL8100B(L) is in power down mode, ex. D1-D3, the IO, MEM, and Boot ROM space are all
disabled. After RST# asserted, the power state must be changed to D0 if the original power state is D3cold
.
There is no hardware enforced delays at RTL8100B(L)’s power state. When in ACPI mode, the
RTL8100B(L) does not support PME from D0 (owing to the setting of PMC register. This setting comes
from EEPROM).
The RTL8100B(L) also supports LAN WAKE-UP function. The LWAKE pin is used to notify the
motherboard to execute wake-up process whenever the RTL8100B(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
VPD (Vital Product Data)
Bit 31 of the Vital Product Data (VPD) is used to issue VPD read/write commands, and is also a flag used to
indicate whether the transfer of data between the VPD data register and the 93C46 is completed or not.
1. Write VPD register: (write data to 93C46)
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RTL8100B(L)
Datasheet
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 RTL8100B(L), the VPD data (all 4 bytes) has been transferred from the VPD data register to
93C46.
2. Read VPD register: (read data from 93C46)
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 RTL8100B(L), the VPD data (all 4 bytes) has been transferred from 93C46 to the VPD data register.
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RTL8100B(L)
Datasheet
9. Block Diagram
MAC
EEPROM
Interface
LED Driver
Power Control Logic
PCI
Interface
Early Interrupt
Threshold
Register
Interrupt
Control
Logic
Early Interrupt
Control Logic
2nd PCI
Device
Transmit/
FIFO
Control
Logic
Receive
Logic
Interface
FIFO
MII
Interface
PHY
100M
5B 4B
Decoder
Data
Alignment
RXD
RXC 25M
Descrambler
10/100
half/full
Switch
Logic
MII
Interface
TXD
TXC 25M
4B 5B
Encoder
Scrambler
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
wander
Correction
Peak
Detect
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
44
Single-Chip 10/100 Ethernet Controller w/Power Management
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RTL8100B(L)
Datasheet
10. Functional Description
10.1. 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 RTL8100B(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 RTL8100B(L) begins
packet transmission.
10.2. Receive Operation
The incoming packet is placed in the RTL8100B(L)'s Rx FIFO. Concurrently, the RTL8100B(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 RTL8100B(L) requests the PCI
bus to begin transferring the data to the Rx buffer in PCI bus master mode.
10.3. Base Line Wander Compensation
The 8100B(L) is ANSI TP-PMD compliant and supports input and Base Line Wander (BLW)
compensation in 100Base-TX mode. The 8100B(L) does not require external attenuation circuitry at its
receive inputs, RD+/-. It accepts TP-PMD compliant waveforms directly, requiring only a 100Ω
termination and a 1:1 transformer.
BLW is the change in the average DC content, over time, of an AC coupled digital transmission over a
given transmission medium. BLW is a result from the interaction between the low frequency components
of a transmitted bit stream and the frequency response of the AC coupling component(s) within the
transmission system. If the low frequency content of the digital bit stream goes below the low frequency
pole of the AC coupling transformers, then the droop characteristics of the transformers will dominate,
resulting in potentially serious BLW. If BLW is not compensated, packet loss can occur.
10.4. 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.
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RTL8100B(L)
Datasheet
10.5. Clock Recovery Module
The Clock Recovery Module (CRM) is supported in 100Base-TX mode. The CRM accepts 125Mbps
MLT3 data from the equalizer. The DPLL locks onto the 125Mbps data stream and extracts a 125MHz
recovered clock. The extracted and synchronized clock and data are used as required by the synchronous
receive operations.
10.6. 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 RTL8100B(L) takes frames from the transmit descriptor and
transmits them up to internal Twister logic.
10.7. Tx Encapsulation
While operating in 100Base-TX mode, the RTL8100B(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.
10.8. Collision
If the RTL8100B(L) is not in the full-duplex mode, a collision event occurs when the receive input is not
idle while the RTL8100B(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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RTL8100B(L)
Datasheet
10.9. Rx Decapsulation
The RTL8100B(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 RTL8100B(L) starts to process the preamble bytes based on
the mode of operation.
While operating in 100Base-Tx mode, the RTL8100B(L) expects the frame to start with the symbol pair JK
in the first byte of the 8-byte preamble.
The RTL8100B(L) checks the CRC bytes and checks if the packet data ends with the TR symbol pair, if
not, the RTL8100B(L) reports an CRC error RSR.
The RTL8100B(L) reports a RSR<CRC> error in any of the following cases:
1. In 100Base-Tx mode, one of the following occurs:
a. An invalid symbol (4B/5B Table) is received in the middle of the frame.
RSR<ISE> bit also sets.
b. The frame does not end with the TR symbol pair.
10.10. Flow Control
The RTL8100B(L) supports IEEE802.3X flow control to improve performance in full-duplex mode. It
detects PAUSE packet to achieve flow control task.
10.10.1. Control Frame Transmission
When the RTL8100B(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
RTL8100B(L) sends the other PAUSE packet with pause_time(=0000h) to wake up the source station to
restart transmission.
10.10.2. Control Frame Reception
The RTL8100B(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 RTL8100B(L) is transmitting, the
RTL8100B(L) starts to back off after current transmission completes. The RTL8100B(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. PAUSE
packet). The N-way flow control capability can be disabled, please refer to Section 6, EEPROM (93C46)
Contents for a detailed description.
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RTL8100B(L)
Datasheet
10.11. LED Functions
10.11.1. 10/100Mbps Link Monitor
The Link Monitor senses the link integrity or if a station is down.
10.11.2. LED_RX
Power On
LED = Low
No
Receiving Packet?
Yes
LED = High for (100 +- 10) ms
LED = Low for (12 +- 2) ms
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RTL8100B(L)
Datasheet
10.11.3. LED_TX
Power On
LED = Low
No
Transmitting Packet
Yes
LED = High for (100 +- 10) ms
LED = Low for (12 +- 2) ms
10.11.4. 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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Datasheet
11. Application Diagram
LED
EEPROM
REQB
GNTB
IDSEL
2nd PCI Device
RTL8102L
RJ45
Magetics
CS/OE
BootROM
Auxiliary Power
INTA
PCI INTERFACE
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Datasheet
12. Electrical Characteristics
12.1. Temperature Limit Ratings
Parameter
Storage temperature
Minimum
Maximum
+125
Units
°C
°C
-55
0
Operating temperature
70
12.2. DC Characteristics
12.2.1.
Supply Voltage Vcc = 3.0V min. to 3.6V max.
Symbol
Parameter
Conditions
Minimum
Maximum
Units
V
Minimum High Level Output Voltage
I
0.9 * Vcc
Vcc
V
OH
OH= -8mA
V
Maximum Low Level Output Voltage
Minimum High Level Input Voltage
Maximum Low Level Input Voltage
Input Current
I
0.1 * Vcc
Vcc+0.5
0.3 * Vcc
1.0
V
V
OL
OL= 8mA
V
0.5 * Vcc
-0.5
IH
V
V
IL
I
V
V
-1.0
uA
IN
IN= CC or
GND
I
Tri-State Output Leakage Current
Average Operating Supply Current
V
V
-10
10
uA
OZ
OUT= CC or
GND
I
I
0mA,
330
mA
CC
OUT=
12.2.2.
Supply Voltage Vdd25 = 2.3V min. to 2.7V max.
Symbol
Parameter
Conditions
Minimum
Maximum
Units
V
Minimum High Level Output Voltage
I
0.9 * Vdd25
Vdd25
V
OH
OH= -8mA
V
Maximum Low Level Output Voltage
Minimum High Level Input Voltage
Maximum Low Level Input Voltage
Input Current
I
0.1 * Vdd25
V
V
OL
OL= 8mA
V
0.5 * Vdd25 Vdd25+0.5
IH
V
-0.5
-1.0
0.3 * Vdd25
1.0
V
IL
I
V
V
uA
IN
IN= dd25 or
GND
I
Tri-State Output Leakage Current
Average Operating Supply Current
V
V
-10
10
40
uA
OZ
OUT= dd25 or
GND
I
I
0mA,
mA
dd25
OUT=
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Datasheet
12.3. AC Characteristics
12.3.1.
PCI Bus Operation Timing
Target Read
Target Write
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Datasheet
Configuration Read
Configuration Write
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Datasheet
BUS Arbitration
Memory Read
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Datasheet
Memory Write
Target Initiated Termination - Retry
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
Target Initiated Termination - Disconnect
Target Initiated Termination - Abort
Single-Chip 10/100 Ethernet Controller w/Power Management
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
Master Initiated Termination – Abort
Parity Operation - One Example
Single-Chip 10/100 Ethernet Controller w/Power Management
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
13. Mechanical Dimensions
13.1. QFP
Notes:
Symbol Dimension in mil
Dimension in mm
1.Dimension D & E do not include interlead flash.
2.Dimension b does not include dambar protrusion/intrusion.
3.Controlling dimension: Millimeter
4.General appearance spec. should be based on final visual
inspection spec.
Min Typical Max Min Typical Max
106.3 118.1 129.9 2.70
4.3 20.1 35.8 0.11
102.4 112.2 122.0 2.60
3.30
0.91
3.10
0.42
0.26
14.25
20.25
0.80
19.15
25.15
1.40
2.65
0.10
12°
A
A1
A2
b
3.00
0.51
2.85
0.30
0.15
14.00
20.00
0.65
18.80
24.80
1.20
2.40
-
7.1
1.6
11.8 16.5 0.18
5.9 10.2 0.04
c
541.3 551.2 561.0 13.75
777.6 787.4 797.2 19.75
19.7 25.6 31.5 0.50
726.4 740.2 753.9 18.45
962.6 976.4 990.2 24.45
39.4 47.2 55.1 1.00
88.6 94.5 104.3 2.25
TITLE : 100L QFP ( 14x20 mm**2 ) FOOTPRINT 4.8 mm
PACKAGE OUTLINE DRAWING
D
E
LEADFRAME MATERIAL:
APPROVE
DWG NO.
REV NO.
SCALE
HD
HE
L
L1
Y
CHECK
Ricardo Chen DATE
SHT NO. 1 OF
REALTEK SEMICONDUCTOR CORP.
-
-
-
3.9
-
0°
0°
12°
-
θ
Single-Chip 10/100 Ethernet Controller w/Power Management
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
13.2. LQFP
Notes:
1.To be determined at seating plane -c-
2.Dimensions D1 and E1 do not include mold protrusion.
D1 and E1 are maximum plastic body size dimensions
including mold mismatch.
Symbol Dimension in inch Dimension in mm
Min Nom Max Min Nom Max
-
-
0.067
-
-
0.1
1.40
0.22
0.20
1.70
0.20
1.50
0.29
0.25
0.20
0.16
3.Dimension b does not include dambar protrusion.
Dambar can not be located on the lower radius of the foot.
4.Exact shape of each corner is optional.
5.These dimensions apply to the flat section of the lead
between 0.10 mm and 0.25 mm from the lead tip.
6. A1 is defined as the distance from the seating plane
to the lowest point of the package body.
7.Controlling dimension: millimeter.
8. Reference document: JEDEC MS-026, BED.
TITLE: 100LD LQFP ( 14x14x1.4mm)
A
A1
A2
b
b1
c
c1
D
D1
E
0.000 0.004 0.008 0.00
0.051 0.055 0.059 1.30
0.006 0.009 0.011 0.15
0.006 0.008 0.010 0.15
0.004
0.004
-
-
0.008 0.09
0.006 0.09
-
-
0.630 BSC
0.551 BSC
0.630 BSC
0.551 BSC
0.020 BSC
16.00 BSC
14.00 BSC
16.00 BSC
14.00 BSC
0.50 BSC
PACKAGE OUTLINE DRAWING, FOOTPRINT 2.0mm
LEADFRAME MATERIAL:
E1
0.016 0.024 0.031 0.40 0.60
0.80 APPROVE
DOC. NO.
VERSION
PAGE
DWG NO. LQ100 - P1
DATE
L
L1
θ
θ 1
θ 2
θ 3
0.039 REF
3.5º
1.00 REF
1
OF
0º
0º
9º
-
0º
0º
3.5º
-
9º
-
-
CHECK
12ºTYP
12ºTYP
12ºTYP
12ºTYP
REALTEK SEMICONDUCTOR CORP.
Single-Chip 10/100 Ethernet Controller w/Power Management
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Track ID: JATR-1076-21 Rev. 1.5
RTL8100B(L)
Datasheet
14. Ordering Information
Part Number
RTL8100B
Package
QFP-100
LQFP-100
Status
RTL8100BL
RTL8100B-LF
RTL8100BL-LF
RTL8100B-GR
RTL8100BL-GR
RTL8100B with Lead (Pb)-Free package
RTL8100BL with Lead (Pb)-Free package
RTL8100B with ‘Green’ package
RTL8100BL with ‘Green’ package
Note: See page 2 and page 3 for package identification.
Realtek Semiconductor Corp.
Headquarters
No. 2, Industry East Road IX, Science-based
Industrial Park, Hsinchu, 300, Taiwan, R.O.C.
Tel: 886-3-5780211 Fax: 886-3-5774713
www.realtek.com.tw
Single-Chip 10/100 Ethernet Controller w/Power Management
60
Track ID: JATR-1076-21 Rev. 1.5
相关型号：
RTL8101LLQFP
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ETC
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