USB2251-NU-05 Standard Microsystems (SMSC), USB2251-NU-05 Datasheet - Page 43

• Manufacturer Part Number: USB2251-NU-05
• Description: ULTRA FAST USB 2.0 MULTI-SLOT FLASH MEDI
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB2251-NU-05

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
Datasheet
Chapter 11 GPIO Usage
SMSC USB2250/50i/51/51i
GPIO16-32
GPIO10
GPIO11
GPIO12
GPIO13
GPIO14
GPIO15
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
NAME
ACTIVE LEVEL
USER
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
LED
CF_DMARQ / RXD
VBUS_DET
SCL / xD_ID
SDA
SD_WP
CF_DMACK / TXD
CRD_PWR0
CRD_PWR1
CRD_PWR2
CRD_PWR3
MS_INS
CF_nCD
xD_nCD
SD_nCD
GPIO [32:16]
Table 11.1 GPIO Usage
SYMBOL
DATASHEET
43
LED indicator
Compact Flash DMA request / Receive
Port of Debugger
USB Vbus detect
Serial EEPROM clock output / xD-
Picture 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-Picture Card detect
Secure Digital card detect
User defined
DESCRIPTION AND NOTE
Revision 2.0 (09-29-09)