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參數(shù)資料
型號(hào)： W83877AF
廠商： WINBOND ELECTRONICS CORP
元件分類： 外設(shè)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(shù)： 134/171頁
文件大?。?/td> 1634K
代理商： W83877AF
W83877AF
Publication Release Date: Dec. 1996
Preliminary Version 0.52
- 132 -
1
2
3
4
5
6
7
0
PRTAD0
PRTAD1
PRTAD2
PRTAD3
PRTAD4
PRTAD5
PRTAD6
PRTAD7
This register is used to select the base address of the parallel port. If EPP is disable, the parallel port
can be set from 100H-3FCH on 4-byte boundaries. If EPP is enable, the parallel port can be set from
100H-3F8H on 8-byte boundaries. nCS = 0 and A10 = 0 are required to access the parallel port when
in compatible, bi-directional, or EPP modes. A10 is active in ECP mode.
PRTAD7-PRTAD0 (bit 7-bit 0): match A[9:2]. Bit 7 = 0 and bit 6 = 0 disable this decode.
8.2.29 Configuration Register 24 (CR24)
When the device is in Extended Function mode and EFIR is 24H, the CR24 register can be accessed
through EFDR. Default = FEH if CR16 bit 2 = 1; default = 00H if CR16 bit 2 = 0. The bit definitions
are as follows:
1
2
3
4
5
6
7
0
Reserved
URAAD1
URAAD2
URAAD3
URAAD4
URAAD5
URAAD6
URAAD7
This register is used to select the base address of the UART A from 100H-3F8H on 8-byte
boundaries. nCS = 0 and A10 = 0 are required to access the UART A registers. A[2:0] are don't-care
conditions.
URAAD7-URAAD1 (bit 7-bit 1): match A[9:3]. Bit 7 = 0 and bit 6 = 0 disable this decode.
Bit 0: Reserved, fixed at zero.
8.2.30 Configuration Register 25 (CR25)
When the device is in Extended Function mode and EFIR is 25H, the CR25 register can be accessed
through EFDR. Default = BEH if CR16 bit 2 = 1; default = 00H if CR16 bit 2 = 0. The bit definitions
are as follows:
相關(guān)PDF資料
PDF描述
W83877ATD enhanced version from Winbonds most popular I/O chip W83877F
W83877ATF enhanced version from Winbonds most popular I/O chip W83877F
W83877 WINBOND I/O
W83877F WINBOND I/O
W83877TD I/O chip disk drive adapter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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
W83877ATF 制造商:WINBOND 制造商全稱:Winbond 功能描述:enhanced version from Winbonds most popular I/O chip W83877F
W83877F 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
W83877TD 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
W83877TF 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
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