SMSC USB464, USB4640i Chapter 11 GPIO Usage, NAME, LEVEL, ACTIVE, SYMBOL, DATASHEET, DESCRIPTION AND NOTE, Table 11.1 USB4640/USB4640i GPIO Usage

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

Datasheet

Chapter 11 GPIO Usage

Table 11.1 USB4640/USB4640i GPIO Usage

	ACTIVE
NAME	LEVEL	SYMBOL	DESCRIPTION AND NOTE
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

Revision 1.0 (06-01-09) 62 SMSC USB4640/USB4640i

DATASHEET