USB2250 Datasheet, PDF (36/36 Pages) SMSC Corporation – Ultra Fast USB 2.0 Multi-Format Flash Media Controller

Chapter 10 GPIO Usage
Ultra Fast USB 2.0 Multi-Format Flash Media Controller
Datasheet
NAME
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10
GPIO11
GPIO12
GPIO13
GPIO14
GPIO15
GPIO16-32
Table 10.1 USB2250/51/59 GPIO Usage (ROM Rev 0x00)
ACTIVE LEVEL
SYMBOL
H
LED1
H
CF_DMARQ / RXD
H
VBUS_DET
H
SCL / xD_ID
H
SDA
L
SD_WP
H
CF_nDMACK / TXD
L
L
L
L
L
L
L
L
USER
CRD_PWR0
CRD_PWR1
CRD_PWR2
CRD_PWR3
MS_INS
CF_nCD
xD_nCD
SD_nCD
GPIO [32:16]
DESCRIPTION AND NOTE
LED indicator
Compact Flash DMA request / Receive
Port of Debugger
USB Vbus detect
Serial EEPROM clock output / xD card
detect
Serial EEPROM data
SD Write Protect
Compact Flash DMA acknowledge /
Transmit Port of Debugger
Card Power Control
Card Power Control
Card Power Control
Card Power Control
Memory Stick Card Insertion
Compact Flash card detect
xD card detect
Secure Digital card detect
User defined
Revision 2.6 (05-08-08)
36
DATASHEET
SMSC USB2250/51/59