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參數(shù)資料
| 型號： | GL652USB |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | USB 7 PORT HUB CONTROLLER |
| 中文描述： | 7端口的USB集線器控制器 |
| 文件頁數(shù)： | 6/17頁 |
| 文件大?。?/td> | 190K |
| 代理商： | GL652USB |
6 08/18/00
GL652USB 7 PORT USB HUB CONTROLLER
Revision 1.2
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
REV
DEVSTUS
OFFSET
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
DESCRIPTION
Device control register
USB function interrupt flag
Endpoint 0 RX control
Endpoint 0 TX control
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
USB device address and configuration status
Register Description
Terminology:
R/O:
R/W:
R/W1C:
W/O:
DEVCTL
R/W
USBRDY
read only
read / write
read / write “1” to clear
write only
( offset 00, default = 00h )
R/W
SFRAME
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.
SFRAME
: 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.
PWRDN
: power down mode
R/W
R/O
SELF
R/O
GANG
--
--
--
In suspend state, firmware can set PWRDN to put the controller into power
down mode. 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.
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