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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: 135/171頁
文件大小: 1634K
代理商: W83877AF
W83877AF
Publication Release Date: Dec. 1996
Preliminary Version 0.52
- 133 -
1
2
3
4
5
6
7
0
Reserved
URBAD1
URBAD2
URBAD3
URBAD4
URBAD5
URBAD6
URBAD7
This register is used to select the base address of the UART B from 100H-3F8H on 8-byte
boundaries. nCS = 0 and A10 = 0 are required to access the UART B registers. A[2:0] are don't-care
conditions.
URBAD7-URBAD1 (bit 7-bit 1): match A[9:3]. Bit 7 = 0 and bit 6 = 0 disable this decode.
Bit 0: Reserved, fixed at zero.
8.2.31 Configuration Register 26 (CR26)
When the device is in Extended Function mode and EFIR is 26H, the CR26 register can be accessed
through EFDR. Default = 23H 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
PRTDQS0
PRTDQS1
PRTDQS2
PRTDQS3
FDCDQS0
FDCDQS1
FDCDQS2
FDCDQS3
FDCDQS3-FDCDQS0 (bit 7-bit 4): Allocate DMA resource for FDC.
PRTDQS3-PRTDQS0 (bit 3-bit 0): Allocate DMA resource for PRT.
bit 7- bit4, bit 3 - bit 0
0000
0001
0010
0011
DMA selected
None
DMA_A
DMA_B
DMA_C
8.2.32 Configuration Register 27 (CR27)
When the device is in Extended Function mode and EFIR is 27, the CR27 register can be accessed
through EFDR. Default = 05H if CR6 bit 2 = 1; default = 00H if CR16 bit 2 = 0. The bit definitions are
as follows:
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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
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