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參數資料
型號: W88227QD
廠商: WINBOND ELECTRONICS CORP
元件分類: 消費家電
英文描述: ATAPI CD-ROM Decoder(支持ATAPI標準的CD-ROM解碼器)
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP128
封裝: LQFP-128
文件頁數: 82/116頁
文件大小: 787K
代理商: W88227QD
Preliminary/Confidential
Subject to change without notice
W88227F/W88227QD
- 78 -
1999/10/1 Rev: 0.70
GIOCF - General Purpose I/O Port Configuration Register (read/write 5Dh)
G4CF (5Dh.7-4)
function
nCCS2 active (low) condition
remark
0xxxb
RA8
output is tri-state after master reset and is
enabled when RTC (2Ah.2-0)
000b
default
10xxb
GPIO4
n/a
1100b
nCCS2
(P2 = CCSA2)
1101b
nCCS2
(P2 = CCSA2) & (P36 = "L")
1110b
nCCS2
(P2 = CCSA2) & (P37 = "L")
1111b
nCCS2
(P2 = CCSA2) & (P36 = "L" or P37 = "L")
G2CF (5Dh.3)
DAOEN (87h.7)
pin function
Remark
0b
0b
nFCE
(default)
1b
0b
GPIO2
x
1b
DAOUT
G3CF (5Dh.2-0)
function
nCCS1 active (low) condition
remark
0xxb
GPIO3
n/a
default
100b
nCCS1
(P2 = CCSA1)
101b
nCCS1
(P2 = CCSA1) & (P36 = "L")
110b
nCCS1
(P2 = CCSA1) & (P37 = "L")
111b
nCCS1
(P2 = CCSA1) & (P36 = "L" or P37 = "L")
PSKCNT - Programmable System Clock Counter (read/write 5Eh)
This register is used for factory test.
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