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參數資料
型號: W83877TF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設及接口
英文描述: Multi-Function I/O Port Controller(用于個人計算機的多功能輸入/輸出口控制器)
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: QFP-100
文件頁數: 21/154頁
文件大小: 821K
代理商: W83877TF
W83877TF
Publication Release Date: March 1998
- 11 -
Version 0.61
1.3 Multi-Mode Parallel Port, continued
SYMBOL
PIN
I/O
FUNCTION
AFD
20
OD
12
PRINTER MODE: AFD
An active low output from this pin causes the printer to auto feed
a line after a line is printed. This pin is pulled high internally.
Refer to the description of the parallel port for the definition of
this pin in ECP and EPP mode.
OD
12
EXTENSION FDD MODE: RWC2
This pin is for Extension FDD B; its function is the same as that
of the RWC pin.
OD
12
EXTENSION 2FDD MODE: RWC2
This pin is for Extension FDD A and B; its function is the same
as that of the RWC pin.
STB
19
OD
12
PRINTER MODE: STB
An active low output is used to latch the parallel data into the
printer. This pin is pulled high internally. Refer to the description
of the parallel port for the definition of this pin in ECP and EPP
mode.
EXTENSION FDD MODE: NC pin
EXTENSION 2FDD MODE: NC pin
-
-
PD0
9
I/O
24t
PRINTER MODE: PD0
Parallel port data bus bit 0. Refer to the description of the
parallel port for the definition of this pin in ECP and EPP mode.
IN
t
EXTENSION FDD MODE: INDEX2
This pin is for Extension FDD B; the function of this pin is the
same as that of the INDEX pin. This pin is pulled high internally.
IN
t
EXTENSION 2FDD MODE: INDEX2
This pin is for Extension FDD A and B; this function of this pin is
the same as INDEX pin. This pin is pulled high internally.
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