SMSC USB2242 Manual De Usuario
Ultra Fast USB 2.0 Memory Stick Flash Media Controller
Datasheet
SMSC USB2242/USB2242i
23
Revision 1.0 (05-27-08)
DATASHEET
Chapter 10 GPIO Usage
Table 10.1 USB2242/USB2242i GPIO Usage (ROM Rev 0x00)
NAME
ACTIVE LEVEL
SYMBOL
DESCRIPTION AND NOTE
GPIO1
H
LED1
LED indicator
GPIO2
H
RXD / SDA
Receive Port of Debugger / Serial
EEPROM Data
EEPROM Data
GPIO4
USER
GPIO
User defined
GPIO7
H
TXD / SCK / MS_SKT_SEL
Transmit Port of Debugger / Serial
EEPROM Clock / Memory Stick Socket
(1 = 8 bit; 0 = 4 bit)
EEPROM Clock / Memory Stick Socket
(1 = 8 bit; 0 = 4 bit)
GPIO10
L
CRD_PWR
Card Power Control
GPIO12
L
MS_INS
Memory Stick Card Insertion
GPIO14
USER
GPIO
User defined
GPIO15
USER
GPIO
User defined