W83787IF Datasheet, PDF (10/123 Pages) Winbond – WINBOND I/O WITH SERIAL-INFRARED SUPPORT

W83787IF
Multi-Mode Parallel Port, continued
SYMBOL PIN I/O
FUNCTION
SLIN
22 OD _{PRINTER MODE: SLIN}
Output line for detection of printer selection. 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 ^{EXTENSION FDD MODE: STEP2}
This pin is for Extension FDD B; its function is the same as that of the
STEP pin.
O ^{EXTENSION ADAPTER MODE: XTC}
This pin is the DMA terminal count for the Extension Adapter. The
count is sent by TC directly.
OD ^{EXTENSION 2FDD MODE: STEP2}
This pin is for Extension FDD A and B; its function is the same as that
of the STEP pin .
O ^{JOYSTICK MODE: VDD for joystick.}
INIT
21 OD _{PRINTER MODE: INIT}
Output line for the printer initialization. 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 ^{EXTENSION FDD MODE: DIR2}
This pin is for Extension FDD B; its function is the same as that of the
DIR pin.
O ^{EXTENSION ADAPTER MODE: XDACK}
This pin is the DMA acknowledge output for the Extension Adapter; the
output is sent directly from PDACKX .
EXTENSION 2FDD MODE: DIR2
OD
This pin is for Extension FDD A and B; its function is the same as that
of the DIR pin.
JOYSTICK MODE: VDD for joystick.
O
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Publication Release Date:Sep 1995
Revision A1