W83877TF Datasheet, PDF(21/154 Page) Winbond – I/O chip disk drive adapter

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W83877TF Datasheet, PDF (21/154 Pages) Winbond – I/O chip disk drive adapter

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W83877TF

1.3 Multi-Mode Parallel Port, continued

SYMBOL PIN

I/O

AFD

OD12

STB

OD12

PD0

I/O24t

INt

FUNCTION

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.

EXTENSION FDD MODE: RWC2

This pin is for Extension FDD B; its function is the same as that

of the RWC pin.

EXTENSION 2FDD MODE: RWC2

This pin is for Extension FDD A and B; its function is the same

as that of the RWC pin.

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

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.

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.

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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Publication Release Date: March 1998

Version 0.61

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