GL652USB [ETC]
USB 7 PORT HUB CONTROLLER; USB 7端口集线器控制器
| 型号： | GL652USB |
| 厂家： | 
ETC |
| 描述： | USB 7 PORT HUB CONTROLLER |
| 文件： | 总17页 (文件大小：192K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Genesys Logic, Inc.
GL652USB
USB 7 PORT HUB CONTROLLER
DATA SHEET, Version 1.2
Aug. 18, 2000
Genesys Logic, Inc.
10F, No.11, Ln.3, Tsao Ti Wei, Shenkeng, Taipei, Taiwan
Tel: 886-2-2664-6655
Fax: 886-2-2664-5757
http://www.genesyslogic.com
GL652USB 7 PORT USB HUB CONTROLLER
1
FEATURES
· High performance and low-cost solution for USB hub
· USB Specification Compliance
-
-
Conforms to USB specification Rev. 1.1
Supports 1 device address and 2 endpoints
· 8-bit micro-processor
-
-
-
-
-
RISC-like architecture
USB optimized instruction set
Single cycle instruction execution
Operation Speed: DC to 24 MHz clock input
Performance: 12 MIPS @ 24MHz
· I/O ports
-
7-port hub
· Internal memory
-
-
64 bytes of RAM
1.75K ´ 14 of program ROM
· On-chip 3.3v output
-
No external regulator required
· Integrated USB transceiver
· 12 MHz external clock
· Improved output drivers with slew-rate control to reduce EMI
· Internal power-on reset(POR)
· Internal power-fail detector for ESD recovery
· Support suspend/normal mode power management
· Support power management for downstream port devices
· Automatic switching between self/bus powered mode
· Smart LED traffic indicator
-
The higher data traffic flows through one port, the higher frequency that port’s
LED will blink.
· Applications:
-
-
Stand-alone USB hub
PC motherboard USB hub
· 48 pin LQFP package
Revision 1.2
2
08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
2
FUNCTION OVERVIEW
The GL652USB is an 8 port USB hub with 1 upstream port and 7 downstream ports. It
uses an 8-bit RISC-like uC to encode/decode the host commands. The GL652USB is
designed mainly for stand-alone hub and can also be integrated in PC motherboard or any
other devices to support USB hub function. The GL652USB can switch between self-
power and bus-power automatically without re-plug in. The GL652USB can be
configured as individual mode or ganged mode for the power management of
downstream port devices. To prevent from abnormal current consumption of downstream
port devices, the GL652USB supplies power enable flags by reading the over-current
flags. The GL652USB supports smart traffic indication through the LED lighting. The
higher data traffic flows through one port, the higher frequency of that port’s LED blinks.
To minimize the power consumption, the GL652USB will turn LED off and stop the
clock when they are suspended.
3
PIN DEFINITIONS AND DESCRIPTIONS
l
GL652USB
Pin No.
1
Name
I/O
I/O
I/O
-
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
-
I/O
I/O
-
I/O
I/O
I/O
I/O
O
Description
Upstream port USB data+
Upstream port USB data-
DP0
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
DM0
AGND
DP7
DM7
DP1
DM1
DP6
DM6
DP4
DM4
AVCC
DP2
DM2
VCP
DP5
DM5
DP3
DM3
Analog ground
Downstream port 7 USB data+
Downstream port 7 USB data-
Downstream port 1 USB data+
Downstream port 1 USB data-
Downstream port 6 USB data+
Downstream port 6 USB data-
Downstream port 4 USB data+
Downstream port 4 USB data-
Analog VCC(5V)
Downstream port 2 USB data+
Downstream port 2 USB data-
3.3V output
Downstream port 5 USB data+
Downstream port 5 USB data-
Downstream port 3 USB data+
Downstream port 3 USB data-
Suspend indication output
1: SELF-powered. 0: INDIVIDUAL-powered
LED traffic indicator for downstream port 1
LED traffic indicator for downstream port 2
LED traffic indicator for downstream port 3
Reset input
LED traffic indicator for downstream port 4
Over current flag for downstream port4
LED traffic indicator for downstream port 5
SUSPND
SELF
I
O
O
O
I
O
I
O
LED1
LED2
LED3
RESET
LED4
OVCUR4#
LED5
Revision 1.2
3
08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
PWRENB4#
LED6
PWRENB6#
TEST
OVCUR6#
XTAL2
XTAL1
O
O
O
I
I
O
I
-
O
I
O
I
-
Power enable for downstream port 4
LED traffic indicator for downstream port 6
Power enable for downstream port 6
Test mode input
Over current flag for downstream port6
Ceramic resonator or crystal out
Ceramic resonator or crystal in
DGND
Digital ground
PWRENB3#
OVCUR3#
LED7
OVCUR7#
DVCC
OVCUR5#
PWRENB5#
PWRENB2#
PWRENB7#
OVCUR2#
PWRENB1#
OVCUR1#
Power enable for downstream port 3
Over current flag for downstream port3
LED traffic indicator for downstream port 7
Over current flag for downstream port7
Digital VCC(5V)
Over current flag for downstream port5
Power enable for downstream port 5
Power enable for downstream port 2
Power enable for downstream port 7
Over current flag for downstream port2
Power enable for downstream port 1
Over current flag for downstream port1
I
O
O
O
I
O
I
Note 1: “#” means low active
Note 2: If using crystal, TEST pull low. If using oscillator, TEST pull high.
Table 1 GL652USB Pin Definitions and Descriptions
GL652USB
1
36
35
34
33
32
31
30
29
28
27
26
25
DP0
DGND
XTAL1
2
3
DM0
AGND
DP7
DM7
DP1
DM1
DP6
DM6
DP4
DM4
AVCC
XTAL2
4
OVRCUR6#
TEST
5
6
PWRENB6#
LED6
7
8
PWRENB4#
LED5
9
10
11
12
OVRCUR4#
LED4
RESET
Revision 1.2
4
08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
4
BLOCK DIAGRAM
UPSTREAM
PORT
12 MHz
D+
D-
TRANS-
CEIVER
PLL
Registers
SIE
HUB REPEATER
Micro-
Controller
PORT CON-
TROLLER
PORT CON-
TROLLER
ROM
RAM
TRANS-
CEIVER
TRANS-
CEIVER
D+
D-
LED
D-
D+
LED
DOWNSTREAM
PORT 7
DOWNSTREAM
PORT 1
Revision 1.2
5
08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
5
REGISTER SUMMARY
MNEMONIC
DEVCTL
EVTFLG
RXCTL0
TXCTL0
TXCTL1
FFDAT
BUFCTL
PORTSEL
HUB_STAT_CHG
PORT_STATUS
BUS_PORT_DATA
HOST_CMD
ENP1_IND
TRXFLAG
LED_INIT
GPIOD
OFFSET
DESCRIPTION
Device control register
USB function interrupt flag
Endpoint 0 RX control
Endpoint 0 TX control
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
Endpoint 1 TX control
Data buffer (FIFO) I/O port
Data buffer control register
Hub port to be configured
Hub status and status change indicator
Hub ports status indicator
Hub ports status change indicator
Host command to downstream ports
Endpoint 1 indicator
Downstream port traffic flag
LED initial state
General purpose I/O pin status
Chip revision
REV
DEVSTUS
USB device address and configuration status
Register Description
Terminology:
R/O:
read only
read / write
read / write “1” to clear
write only
R/W:
R/W1C:
W/O:
DEVCTL
( offset 00, default = 00h )
R/W
R/W
R/W
R/O
R/O
USBRDY SFRAME
--
--
--
SELF
GANG
PWRDN
USBRDY
: 0 - USB interface is not ready. The device drives USB with SE0.
1 - USB interface is ready. The device stops driving USB with SE0.
After power-on reset, USBRDY is cleared and the device looks like
disconnected. Set USBRDY to ‘1’ to enable USB interface.
: short frame option for test purpose
Set SFRAME to ‘1’ will shorten frame length to 1/15 ms. It is to shorten the
time required for test.
SFRAME
PWRDN
: power down mode
In suspend state, firmware can set PWRDN to put the controller into power
down mo de. In this mode, the embedded micro-controller and most internal
activities are frozen. Hardware will automatically clear PWRDN upon
hardware reset or resume activities occur.
Revision 1.2
6
08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
SELF
: 0 - HUB is bus powered.
1 - HUB is self powered.
: 0 - HUB is in individual mode.
1 - HUB is in ganged mode.
GANG
EVTFLG
R/W1C
( offset 01, default = 00h )
R/W1C
R/W1C
R/W1C
R/W1C
R/W1C
R/W1C
R/W1C
SOF
C_LCPWR WAKEUP
SUSPD
EP1TX
EP0TX
EP0RX
USBRST
Interrupt event flag –
EP0RX
EP0TX
EP1TX
SUSPD
: a SETUP or OUT transaction to endpoint 0 is accepted
: USB host controller accepts data transmitted via endpoint 0.
: USB host controller accepts data transmitted via endpoint 1
: the controller goes into suspend state
WAKEUP
SOF
C_LCPWR
USBRST
: remote wakeup is detected when global suspended
: SOF detected or generated by HUB timer.
: POWER source change.
: End of USB reset
RXCTL0
R/W
RXDIS
Status of endpoint 0 receiving –
( offset 02, default = 40h )
R/O
R/O
R/O
R/O
R/O
R/O
R/O
RXSETUP RXOUT
RXSEQ
RXCNT3 RXCNT2 RXCNT1 RXCNT0
RXCNT3~0
: EP0 received data byte count.
RXSEQ
: 1 - The received data PID is DATA1
0 - The received data PID is DATA0
RXOUT
RXSETUP
RXDIS
: 1 - The received token PID is OUT.
: 1 - The received token PID is SETUP.
: 0 - Endpoint 0 FIFO is empty and ready for data-packet receiving.
1 - Endpoint 0 FIFO is filled with data and will reject the new-coming data
packet.
If RXDIS = 1, the device will not accept an OUT transaction addressed to it, and will respond
with a NAK to an error-free transaction. Hardware will automatically set RXDIS after a
successful receiving. After processing, the micro-controller should clear RXDIS to enable next
data-packet receiving or free FF0 for filling of the data to transmit. Note that a SETUP
transaction addressed to the device is always accepted even though RXDIS = 1.
TXCTL0
--
( offset 03, default = 00h )
R/W
EP0STL
R/W
R/W
R/W
R/W
R/W
R/W
EP0OE
EP0SEQ
EP0CNT3 EP0CNT2 EP0CNT1 EP0CNT0
Endpoint 0 transmit setting –
EP0CNT3~0
: number of data bytes to transmit
EP0OE
: enable data transmit
1 – ready to transmit data packet
0 – not ready to transmit data packet (default)
: data packet type
0 –DATA0
1 –DATA1
EP0SEQ
EP0STL
: set endpoint 0 stall
1 – EP0 will respond to USB host controller with STALL packet
EP0STL will be automatically cleared when a setup transaction is accepted.
Revision 1.2
7
08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
After filling the data-to-transmit into FF0, the micro-controller should setup this register to
enable endpoint 0 data transmit. If EP0OE = 0, endpoint 0 will respond to a valid IN transaction
with a NAK. EP0OE will be automatically cleared after a successful transmission, or when
endpoint 0 has incidentally accepted another SETUP or OUT transaction.
TXCTL1
--
( offset 04, default = 00h )
R/W
EP1STL
R/W
R/W
R/O
R/O
R/O
R/W
EP1OE
EP1SEQ
EP1CNT3 EP1CNT2 EP1CNT1 EP1CNT0
Endpoint 1 transmit setting –
EP1CNT3~0
EP1OE
: number of data bytes to transmit. EP1CNT3~1 are always ‘0’.
: enable data transmit
1 – ready to transmit data packet
0 – not ready to transmit data packet (default)
EP1SEQ
EP1STL
: data packet type
0 –DATA0
1 –DATA1
: set endpoint 1 stall
1 – EP1 will respond to USB host controller with STALL packet
0 – default
After preparing the data to transmit, the micro-controller should setup this register to enable
endpoint 1 data transmit. If EP1OE = 0, endpoint 1 will respond to a valid IN transaction with a
NAK. After a successful transmission, the device will automatically clear EP1OE.
FFDAT
( offset 05, default = 00h )
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
FFD7
FFD6
FFD5
FFD4
FFD3
FFD2
FFD1
FFD0
If FFSEL1 (in BUFCTL) = 1’b0, this is FF0 access-window; if FFSEL1 = 1’b1, this is FF1
access-window. Each FFDAT read/write will automatically increase the FIFO pointer, which is
a 3-bit circular counter, by 1. Writing FPRST with ‘1’ (in BUFCTL) will reset the pointer. Note
that to fill FF0, RXDIS (in RXCTL0) must be first cleared.
BUFCTL
--
( offset 06 )
W/O
FPRST
R/W
FFSEL1
--
--
--
--
--
Data buffer control –
FFSEL1
: FIFO 0/1 selector
1’b0 – select endpoint 0 data buffer
1’b1 – select endpoint 1 data buffer
: reset FIFO 0/1 pointer (write only)
FPRST
PORTSEL
--
( offset 07, default = 00h )
R/W R/W
PORTSEL PORTSEL PORTSEL PORTSEL PORTSEL PORTSEL PORTSEL
R/W
R/W
R/W
R/W
R/W
7
6
5
4
3
2
1
PORTSEL
PORTSEL1
PORTSEL2
PORTSEL3
PORTSEL4
PORTSEL5
PORTSEL6
PORTSEL7
: PORT 1~7 under request
1’b1 – port 1 selected
1’b1 – port 2 selected
1’b1 – port 3 selected
1’b1 – port 4 selected
1’b1 – port 4 selected
1’b1 – port 4 selected
1’b1 – port 4 selected
Revision 1.2
8
08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
HUB_STAT_CHG
( offset 08, default = 00h )
R/O
LCPWR
R/O
OVCUR
HUB status and status change
R/O
R/O
--
--
--
--
C_LCPWR C_OVCUR
LCPWR
: HUB local power status
1’b0 – local power good
1’b1 – local power lost
OVRCUR
C_LCPWR
C_OVRCUR
: HUB over current indicator
1’b0 – No over-current condition currently exists
1’b1 – A hub over-current condition exists
: Local power status change
1’b0 – No change has occurred to local power status
1’b1 – local power status has changed
: HUB over current indicator change
1’b0 – No change has occurred to the over-current indicator
1’b1 – Hub over-current indicator has changed
PORT_STATUS ( offset 09, default = 00h )
R/O R/O
R/O
R/O
R/O
R/O
R/O
PT_LOW_ PT_PWR
SPD
--
PT_RST PT_OVCU PT_SUS
R
PT_EN
PT_CON
Port status indicator:
PT_LOW_SPD : 1’b0 – full speed device connected, 1’b1 – low speed device
connected
PT_PWR
PT_RST
PT_OVCUR
: 1’b0 – port is in power off state, 1’b1 – port is not in power off state
: 1’b0 – Reset signaling not asserted, 1b’1 – Reset signaling asserted
: 1’b0 – No over-current condition occurred on this port
1’b1 – An over-current condition exists on this port
PT_SUS
PT_EN
: 1’b0 – port not suspended, 1’b1 – port suspended or resuming
: 1’b0 – port is disabled, 1’b1 – port is enabled
PT_CON
: 1’b0 – No device is present, 1’b1 – A device is present on this port
BUS_PORT_DATA
( offset 0A, default = 00h )
R/O
C_PT_RST C_PT_
OVCUR
Bus state and Port status change indicator:
R/O
VP
R/O
VM
R/O
R/O
R/O
R/O
--
C_PT_
SUS
C_PT_EN
C_PT_
CON
VP
VM
C_PT_RST
: VP state on the downstream port
: VM state on the downstream port
: 1’b0 – No change, 1’b1 – Reset complete
C_PT_OVCUR : 1’b0 – No change has occurred to over-current indicator
1’b1 – over-current indicator has changed
C_PT_SUS
: 1’b0 – No change, 1’b1: – Resume complete
C_PT_EN
C_PT_CON
: Set to one when a port is disabled because of a Port_error condition
: 1’b0 – No change has occurred to current connect status
1’b1 – Current connect status has changed
HOST_CMD
( offset 0B, default = 0Fh )
W/O W/O
W/O
W/O
W/O
W/O
W/O
W/O
HB_CMD3 HB_CMD2 HB_CMD1 HB_CMD0 PT_CMD3 PT_CMD2 PT_CMD1 PT_CMD0
Revision 1.2
9
08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
Host command to the hub:
PT_CMD3~0
: 4’h0 –SetPortFeature(PORT_SUSPEND)
: 4’h1 –SetPortFeature(PORT_RESET)
: 4’h2 –SetPortFeature(PORT_POWER)
: 4’h3 –ClearPortFeature(PORT_ENABLE)
: 4’h4 –ClearPortFeature(PORT_SUSPEND)
: 4’h5 –ClearPortFeature(PORT_POWER)
: 4’h6 –ClearPortFeature(C_PORT_RESET)
: 4’h7 –ClearPortFeature(C_PORT_OVER_CURRENT)
: 4’h8 –ClearPortFeature(C_PORT_SUSPEND)
: 4’h9 –ClearPortFeature(C_PORT_ENABLE)
: 4’hA –ClearPortFeature(C_PORT_CONNECTION)
: 1’b1 –SetHubFeature(C_HUB_LOCAL_POWER)
: 1’b1 –SetHubFeature(C_HUB_OVER_CURRENT)
: 1’b1 –ClearHubFeature(C_HUB_LOCAL_POWER)
: 1’b1 –ClearHubFeature(C_HUB_OVER_CURRENT)
HB_CMD3
HB_CMD2
HB_CMD1
HB_CMD0
ENP1_IND
R/O
( offset 0C, default = 00h )
R/O
R/O
R/O
R/O
R/O
R/O
R/O
PT7
PT6
PT5
PT4
PT3
PT2
PT1
HUB
Endpoint 1 interrupt change indicator
TRXFLAG
--
( offset 0D, default = 00h )
R/W1C
R/W1C
R/W1C
R/W1C
P4_TRX
R/W1C
P3_TRX
R/W1C
P2_TRX
R/W1C
P1_TRX
P7_TRX
P6_TRX
P5_TRX
Upstream traffic flag:
P1_TRX
P2_TRX
P3_TRX
P4_TRX
P5_TRX
P6_TRX
P7_TRX
: upstream traffic happens on downstream port 1
: upstream traffic happens on downstream port 2
: upstream traffic happens on downstream port 3
: upstream traffic happens on downstream port 4
: upstream traffic happens on downstream port 5
: upstream traffic happens on downstream port 6
: upstream traffic happens on downstream port 7
LED_INIT
--
( offset 0E, default = 00h )
R/W1C
R/W1C
R/W1C
P5_ON
R/W1C
P4_ON
R/W1C
P3_ON
R/W1C
P2_ON
R/W1C
P1_ON
P7_ON
P6_ON
LED initial flag:
P1_ON
: if 1’b1, LED is always on, otherwise, judge according to TRXFLAG
register.
P2_ON
P3_ON
P4_ON
P5_ON
P6_ON
P7_ON
: if 1’b1, LED is always on, otherwise, judge according to TRXFLAG
register.
: if 1’b1, LED is always on, otherwise, judge according to TRXFLAG
register.
: if 1’b1, LED is always on, otherwise, judge according to TRXFLAG
register.
: if 1’b1, LED is always on, otherwise, judge according to TRXFLAG
register.
: if 1’b1, LED is always on, otherwise, judge according to TRXFLAG
register.
: if 1’b1, LED is always on, otherwise, judge according to TRXFLAG
register.
Revision 1.2
10
08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
GPIOD
(offset 0F, default = 0Fh)
R/W
R/W
R/W
R/W
R/W
R/W
R/W
--
GPIO6D/
LED7
GPIO4D/
LED5
GPIO3D/
LED4#
GPIO2D/
LED3#
GPIO1D/
LED2#
GPIO0D/
LED1#
GPIO5D/
LED6
General purpose I/O pin status –
If GPIOXOE = 1 (X: 0 ~ 6), GPIOX is driven with the level of internal GPIOXD latch, which
is the same as corresponding GPIOXD bit. If GPIOXOE = 0, GPIOXD reflects the level of
GPIOX pin, which may be different from internal GPIOXD latch. The value written to GPIOD
will be stored in an internal latch, no matter what direction the GPIOX pins are in. Bits 6 to 0
have been pre-assigned specific functions for LED indicators. (active low).
REV
( offset 10, default = current revision )
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
REV7
REV6
REV5
REV4
REV3
REV2
REV1
REV0
This register returns current silicon revision number of the HUB.
Current revision is 8’h11. (Revision 1.1)
DEVSTUS
R/W
( offset 11, default = 00h )
R/W
R/W
R/W
R/W
R/W
R/W
R/W
HCONFIG DEVADR6 DEVADR5 DEVADR4 DEVADR3 DEVADR2 DEVA DR1 DEVADR0
USB device status registers. Procedure to set the device address:
1. After USB reset, the device responds to default address 0, and hub configuration = 0.
2. USB host controller issues SET_ADDRESS request to the device. (INTRB asserted)
3. Micro-controller recognizes the request, then set DEVADR register with appropriate value.
4. Micro-controller prepares the status stage of SET_ADDRESS request by programming
TXCTL0 register.
5. When the hub configuration value is not equal zero, HCONFIG is set to one.
USB reset will clear this register.
6
MAXIMUM RATINGS
Maximum ratings are the extreme limits to which the GL652USB can be exposed without permanently
damaging it. The GL652USB contains circuitry to protect the inputs against damage from high static
voltages; however, do not apply voltages higher than those shown in the table. Keep VIN and VOUT within
the range GND £ (VIN or VOUT) £ VCC. Connect unused inputs to the appropriate voltage level, either GND
or VDD
.
Symbol
TSTG
Characteristic
Storage temperature
Value
-55 to +150
Unit
°C
TOP
VCC
Operating temperature
Supply voltage
0 to +70
-0.5 to +7.0
°C
V
V
IN
DC input voltage
-0.5 to +VDD + 0.5
V
I
Maximum current per pin excluding VDD and VSS
Maximum current out of GND
Maximum current out of VCC
Static discharge voltage
25
mA
mA
mA
V
IMGND
IMVCC
VESD
100
100
>4000
7
ELECTRICAL CHARACTERISTICS
Revision 1.2
11
08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
Symbol
Supply
VDD
VDDA Analog Power Supply
IDD Digital Supply Current
Parameter
Tese Conditions
Min.
Typ.
Max.
Unit
Digital Power Supply
4.5
4.5
5.0
5.0
5.5
5.5
V
V
mA
mA
IDDA Analog Supply Current
USB Bus: DP and DM
VCP
VDI
VDO
Regulated Voltage Output
Static Input Voltage
Static Output Voltage
3.0
0
0
3.3
-
-
3.6
VCP
VCP
V
V
V
Digital I/O Pins
Input Logic Low Voltage
V
IL
-
2.0
-
-
-
-
-
0.8
-
0.1xVDD
-
V
V
V
V
V
Input Logic High Voltage
Output Logic Low Voltage
Output Logic High Voltage
IH
VOL
VOH
IO=-4.0mA
IO=+4.0mA
0.9xVDD
Revision 1.2
12
08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
8
PACKAGE DIAGRAM
48-LQFP
SYVBOIS
MIN
MAX
1.6
A
A1
A2
C1
0.05
1.35
0.09
0.15
1.45
0.16
D
D1
9.00BSC
7.00BSC
E
E1
e
9.00BSC
7.00BSC
0.5BSC
b
L
0.17
0.45
0.27
0.75
L1
1 REF
D
D 1
L
L 1
b
e
Revision 1.2
13
08/18/00
A
B
C
D
E
9. Application Circuits (1)
4
3
2
1
4
3
2
1
B_VCC
R1
1M
R2
R3
R4
R5
R7
R8
R9
1K
1K
1K
1K
1K
1K
1K
D1
LED1
LED2
VOUT1
VOUT2
VOUT3
VOUT4
VOUT5
VOUT6
VOUT7
C1
0.1U
C2
Y1 12 MHz C3
30P
LED
D2
U1
30P
LED
D3
LED3
LED4
LED5
LED6
LED7
DP0
1
2
36
35
34
33
32
31
30
29
28
27
26
25
DP0
DGND
XTAL1
LED
D4
XTAL1
R6
DM0
DM0
AGND
DP7
24
3
XTAL2
LED
D5
DP7
DM7
DP1
DM1
DP6
DM6
DP4
DM4
OVRCUR6#
4
OVRCUR6#
TEST
5
DM7
DP1
LED
D6
PWRENB6#
LED6
6
PWRENB6#
LED6
7
DM1
DP6
LED
D7
PWRENB4#
LED5
8
PWRENB4#
LED5
9
DM6
DP4
LED
OVRCUR4#
LED4
10
11
12
OVRCUR4#
LED4
B_VCC
B_VCC
DM4
AVCC
B_VCC
RESET
C4
R10 10K
0.1U
C6
C5
+
0.1U 4.7U
GL652USB
R11 1M
VCP
SUSPEND
Title
CIRCUIT FOR GENESYS 7-PORT USB HUB
Size
B
Document Number
USBHUB.DSN
Rev
1.2
Date:
Thursday, August 17, 2000
Sheet
E
1
of
4
A
B
C
D
A
B
C
D
E
VCC
9. Application Circuits (2)
B_VCC
B_VCC
C7
R12
10K
R13
10K
S_VCC
U2
4
3
2
1
4
3
2
1
PWRENB1#
FLG1#
VOUT1
VOUT2
0.1U
1
2
3
4
8
7
6
5
ENA#
OUTA#
IN
FLG1#
FLG2#
OVRCUR1#
C8
OVRCUR2#
C9
FLGA#
FLGB#
R16
R14 10K
R15 10K
B_VCC
FLG2#
0.1U
0.1U
GND
4.7K
PWRENB2#
ENB#
OUTB#
G
Q1
MIC2526-8
Q2
TP0610T
G
2N7002
MIC 29302
R17
1M
U3
VCC
R18
B_VCC
B_VCC
4.7K
VCC
REN
S_VCC
VCC
C10
R19
10K
R20
10K
U4
PWRENB3#
FLG3#
VOUT3
VOUT4
0.1U
1
2
3
4
8
7
6
5
ENA#
OUTA#
IN
FLG3#
FLG4#
C11
0.1U
C12
47U
R21 825K,%1
R24
C13
OVRCUR3#
OVRCUR4#
C14
C15
FLGA#
FLGB#
J1
0.1U
R22 10K
R23 10K
FLG4#
0.1U
0.1U
GND
POWER JACK
267K,%1
PWRENB4#
ENB#
OUTB#
A
6V adapter is
recommended.
MIC2526-8
VCC
B_VCC
B_VCC
C16
R25
10K
R26
10K
U5
PWRENB5#
FLG5#
VOUT5
VOUT6
0.1U
1
2
3
4
8
7
6
5
ENA#
OUTA#
IN
FLG5#
FLG6#
OVRCUR5#
OVRCUR6#
C17
C18
FLGA#
FLGB#
R27 10K
R28 10K
FLG6#
0.1U
0.1U
GND
PWRENB6#
ENB#
OUTB#
MIC2526-8
MIC 29302
VCC
U6
SELF
Q3
FDN340P
R29
470
G
VCC
REN
R30
1M
Q4
2N7002
S_VCC
VCC
B_VCC
REN
G
G
R31
R32
825K,%1
B_VCC
Q5
2N7002
C19
R33
10K
U7
267K,%1
PWRENB7#
FLG7#
VOUT7
0.1U
1
2
3
4
8
7
6
5
ENA#
OUTA#
IN
FLG7#
OVRCUR7#
C20
FLGA#
FLGB#
R34 10K
0.1U
GND
B_VCC
ENB#
OUTB#
MIC2526-8
Title
Size
CIRCUIT FOR GENESYS 7-PORT USB HUB
Document Number
Rev
1.2
Custom USBHUB.DSN
Date:
Thursday, August 17, 2000
E
Sheet
2
of
4
A
B
C
D
A
B
C
D
E
9. Application Circuits (3)
VCP
B_VCC
C21 10U
R35
L1
L3
FB
FB
J2
VOUT4
1
2
3
4
4
3
2
1
4
3
2
1
1.5K
L2 FB
DM4
DP4
R36 22
R37 22
J3
+
C22
C23
1
2
3
4
DM0
DP0
R38 22
120U
0.1U
R39 22
USB-A
C24
47P
C25
L4 FB
USB-B
R40
15K
R41
15K
47P
L5
FB
FB
L6
L8
FB
FB
J4
J5
VOUT1
C26
120U
VOUT5
1
2
3
4
1
2
3
4
DM1
DP1
R42 22
R44 22
DM5
DP5
R43 22
R45 22
+
C28
+
C27
C29
0.1U
120U
0.1U
USB-A
USB-A
L7
R46
15K
R47
15K
R48
15K
R49
15K
L9
FB
FB
L10
L12
FB
FB
J6
J7
VOUT2
C30
120U
VOUT6
1
2
3
4
1
2
3
4
DM2
DP2
R50 22
R52 22
DM6
DP6
R51 22
R53 22
+
C32
+
C31
C33
0.1U
120U
0.1U
USB-A
USB-A
L11
R54
15K
R55
15K
R56
15K
R57
15K
L13
L15
FB
FB
L14
L16
FB
FB
J8
J9
VOUT3
C34
120U
VOUT7
1
2
3
4
1
2
3
4
DM3
DP3
R58 22
R60 22
DM7
DP7
R59 22
R61 22
+
C36
+
C35
C37
0.1U
120U
0.1U
USB-A
USB-A
R62
15K
R63
15K
R64
15K
R65
15K
Title
CIRCUIT FOR GENESYS 7-PORT USB HUB
Size
B
Document Number
USBHUB.DSN
Rev
1.2
Date:
Thursday, August 17, 2000
Sheet
E
3
of
4
A
B
C
D
A
B
C
D
E
9. Application Circuits (4)
4
3
2
1
4
3
2
1
Rev.
1.0
Date
'00/04/05
Description
1. First Product Release
1.1
1. Seperate 4-port and 7-port hubs into different schematic files.
2. Omit the ganged mode pull-up resistor on 'SUSPND' pin.
'00/05/18
3. Add
4. Connect pin
only when upstream port is plugged!
1M pull-low resistor is also added to disable this pin when
a
10K pull-up resistor to 'RESET' pin.
1
of U3 to B_VCC, then regulator will be enabled
A
the upstream port is not plugged.
5. 'SELF' is directly connected to drain of Q4 to omit the external
debounce RC circuit for this pin.
6. Q1 is replaced by
a more popular and cheaper one -- FDN340P.
7. Some resistor values are increased to save the operating current.
1.2
1. Change the pull-up voltage source for each LED from B_VCC to power
switch output.
'00/08/17
2. Remove the 47U output capacitor of MIC29302 to suppress inrush current.
3. Add R1, R6 and C6 for EMI suppressing.
4. Change C22, C26, C27, C30, C31, C34 and C35 from 100U to 120U for
better behavior in droop test.
5. Add
a 2-transistor circuit for regulator ENABLE pin. That will save
several tens of mA operating current than direct connecting B_VCC
to ENABLE pin.
6. Remove
a redudant transistor in SELF-BUS power switching circuit.
7. Change MIC29512 to
2
paralell MIC29302 for better driving capability.
Title
CIRCUIT FOR GENESYS 7-PORT USB HUB
Size
B
Document Number
USBHUB.DSN
Rev
1.2
Date:
Thursday, August 17, 2000
Sheet
E
4
of
4
A
B
C
D
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