SMSC USB2601 - Manual (Page 29)

4th Generation USB 2.0 Flash Media Controller with Integrated Card Power FETs & HS Hub
Datasheet
SMSC USB2601/USB2602 29 Revision 1.6 (06-20-08)
DATASHEET
Chapter 9 GPIO Usage
Table 9.1 GPIO Usage (ROM Rev -01)
NAME
ACTIVE
LEVEL SYMBOL DESCRIPTION AND NOTE
GPIO1 H Flash Media Activity LED/
xD_Door Indicates media activity. Media or USB
cable must not be removed with LED lit.
Also may be used for xD Door
functionality.
GPIO2 H EE_CS Serial EE PROM chip select.
GPIO3 H V_BUS USB V bus detect.
GPIO4 H EE_DIN/EE_DOUT/xDID Serial EE PROM input/output and xD
Identify.
GPIO5 H HS_IND/SD_CD HS Indicator LED or SD Card Detect
Switch input.
GPIO6 H A16/ROMEN A16 address line connect for DFU or
debug LED indicator optional.
GPIO7 H EE_CLK/
UNCONF_LED Serial EE PROM clock output or
Unconfigured LED.
GPIO8 L MS_PWR_CTRL/
CRD_PWR0 Memory Stick Card Power Control, or
Internal Power FET0.
GPIO9 L CF_PWR_CTRL CompactFlash Card Power Control.
GPIO10 L SM_PWR_CTRL/
CRD_PWR1 SmartMedia Card Power Control, or
Internal Power FET1.
GPIO11 L SD/MMC_PWR_CTRL/
CRD_PWR2 SD/MMC Card Power Control, or
Internal Power FET2.
GPIO12 H MS_ACT_IND/
Media Activity Memory Stick Activity Indicator, or
Media Activity LED.
GPIO13 H CF_ACT_IND CompactFlash Activity Indicator.
GPIO14 H SM_ACT_IND SmartMedia Activity Indicator.
GPIO15 H SD/MMC_ACT_IND SD/MMC Activity Indicator.