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參數資料
型號: W83877AF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設及接口
英文描述: Multi-Function I/O Port Controller(多功能輸入/輸出口控制器)
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: QFP-100
文件頁數: 126/171頁
文件大小: 1634K
代理商: W83877AF
W83877AF
Publication Release Date: Dec. 1996
Preliminary Version 0.52
- 124 -
8.2.20 Configuration Register 14 (CR14), default = 00H
When the device is in Extended Function mode and EFIR is 14H, the CR14 register can be accessed
through EFDR. The bit definitions are as follows:
1
2
3
4
5
6
7
0
GDA0IPI
GDA0OPI
GCS0IOW
GCS0IOR
GIO0CSH
GIOP0MD0
GIOP0MD1
GIOP0MD2
GIOP0MD2-GIOP0MD0 (bit 7-bit 5): GIOP0 pin mode selection
GIOP0MD2
0
0
GIOP0MD1
0
0
GIOP0MD0
0
1
GIOP0 pin
inactive (tri-state)
as a data output pin (SD0
GIOP0), when (AEN = L)
AND (nIOW = L) AND (SA10-0 = GIO0AD10-0), the
value of SD0 will be present on GIOP0
as a data input pin (GIOP0
SD0), when (AEN = L)
AND (nIOR = L) AND (SA10-0 = GIO0AD10-0), the
value of GIOP0 will be present on SD0
as a data input/output pin (GIOP0
SD0).
When (AEN = L) AND (NIOW = L) AND (SA10-0 =
GIO0AD10-0), the value of SD0 will be present on
GIOP0 When (AEN = L) AND (nIOR = L) AND (SA10-0
= GIO0AD10-0), the value of GIOP0 will be present on
SD0
as a Chip Select pin, the pin will be active at (AEN =
L) AND (SA10-0 = GIO0AD10-0) OR (nIOR = L) OR
(nIOW = L)
0
1
0
0
1
1
1
X
X
GIO0CSH(bit 4):
0
the Chip Select pin will be active LOW when (AEN = L) AND (SA10-0 = GIO0AD10-
0) OR (nIOR = L) OR (nIOW = L)
the Chip Select pin will be active HIGH when (AEN = L) AND (SA10-0 = GIO0AD10-
0) OR (nIOR = L) OR (nIOW = L)
1
GCS0IOR (bit 3): See below.
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參數描述
W83877ATD 制造商:WINBOND 制造商全稱:Winbond 功能描述:enhanced version from Winbonds most popular I/O chip W83877F
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