SMSC USB4640i ユーザーズマニュアル

High Speed Inter-Chip USB 2.0 Hub and Flash Media Controller

Revision 1.0 (06-01-09)

62

SMSC USB4640/USB4640i

GPIO1

H

LED / TxD

LED indicator / Serial port transmit line 

GPIO2

H

RxD 

Serial port receive line

GPIO4

H

SCL

Serial EEPROM clock

GPIO5

H

SDA

Serial EEPROM data

GPIO6

L

SD_WP

Secure Digital card write protect assertion

GPIO10

L

CRD_PWR_CTRL

Card power control

GPIO12

L

MS_nCD

Memory Stick card detect

GPIO14

L

xD_nCD

xD-Picture card detect

GPIO15

L

SD_nCD

Secure Digital card detect