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W83787IF

WINBOND I/O WITH SERIAL-INFRARED SUPPORT

Winbond 

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

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