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USB2227 데이터시트(PDF) 20 Page - Microchip Technology

부품명 USB2227
상세설명  4th Generation USB 2.0 Flash Media Controller with Integrated Card Power FETs
PDF  25 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB2227 데이터시트(HTML) 20 Page - Microchip Technology

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USB2227/USB2228
DS00002256A-page 20
 2007-2016 Microchip Technology Inc.
7.0
GPIO USAGE
TABLE 7-1:
GPIO USAGE (ROM REV -11)
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
L
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



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