国产精品成人VA在线观看-国产乱妇乱子视频在播放-国产日韩精品一区二区三区在线-国模精品一区二区三区

參數(shù)資料
型號: 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): 92/171頁
文件大小: 1634K
代理商: W83877AF
W83877AF
Publication Release Date: Dec. 1996
Preliminary Version 0.52
- 90 -
5.2.4 EPP Address Port
The address port is available only in EPP mode. Bit definitions are as follows:
1
2
3
4
5
6
7
0
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
The contents of DB0-DB7 are buffered (non-inverting) and output to ports PD0-PD7 during a write
operation. The leading edge of IOW
c
auses an EPP address write cycle to be performed, and the
trailing edge of IOW
latches the data for the duration of the EPP write cycle.
PD0-PD7 ports are read during a read operation. The leading edge of IOR
causes an EPP address
read cycle to be performed and the data to be output to the host CPU.
5.2.5 EPP Data Port 0-3
These four registers are available only in EPP mode. Bit definitions of each data port are as follows:
1
2
3
4
5
6
7
0
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
When accesses are made to any EPP data port, the contents of DB0-DB7 are buffered (non-
inverting) and output to the ports PD0-PD7 during a write operation. The leading edge of IOW
causes
an EPP data write cycle to be performed, and the trailing edge of IOW
latches the data for the
duration of the EPP write cycle.
During a read operation, ports PD0-PD7 are read, and the leading edge of
IOR
causes an EPP read
cycle to be performed and the data to be output to the host CPU.
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