USB2230 datasheet(23/28 Pages) MICROCHIP

部件名	USB2230

功能描述	5th Generation Hi-Speed USB Flash Media and IrDA Controller with Integrated Card Power FETs

PDF	28 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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23 / 28 page

 2005-2016 Microchip Technology Inc.

DS00002252A-page 23

USB2229/USB2230

8.0

GPIO USAGE

TABLE 8-1:

GPIO USAGE (ROM REV -11)

Name

Active Level

Symbol

Description and Note

GPIO1

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

EE_CS

Serial EE PROM chip select

GPIO3

V_BUS

USB V bus detect

GPIO4

EE_DIN/EE_DOUT/xDID

Serial EE PROM input/output and xD

Identify

GPIO5

HS_IND/SD_CD

HS Indicator LED or SD Card Detect

Switch input

GPIO6

A16/ROMEN

A16 address line connect for DFU or

debug LED indicator optional.

GPIO7

EE_CLK/

UNCONF_LED

Serial EE PROM clock output or

Unconfigured LED.

GPIO8

MS_PWR_CTRL/

CRD_PWR0

Memory Stick Card Power Control, or

Internal Power FET0.

GPIO9

CF_PWR_CTRL

CompactFlash Card Power Control

GPIO10

SM_PWR_CTRL/

CRD_PWR1

SmartMedia Card Power Control, or

Internal Power FET1.

GPIO11

SD/MMC_PWR_CTRL/

CRD_PWR2

SD/MMC Card Power Control, or Internal

Power FET2.

GPIO12

MS_ACT_IND/

Media Activity

Memory Stick Activity Indicator, or Media

Activity LED.

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