W83977TF-A View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

W83977TF-A

WINBOND I/O

Winbond 

1.5 Multi-Mode Parallel Port, continued

SYMBOL PIN

I/O

SLIN

32

OD12

INIT

OD12

OD12

33

OD12

AFD

OD12

OD12

35

OD12

OD12

OD12

W83977TF

PRELIMINARY

FUNCTION

PRINTER MODE: SLIN

Output line for detection of printer selection. This pin is pulled high

internally. Refer to description of the parallel port for definition of

this pin in ECP and EPP mode.

EXTENSION FDD MODE: STEP2

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

STEP pin of FDC.

EXTENSION 2FDD MODE: STEP2

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

the STEP pin of FDC.

PRINTER MODE: INIT

Output line for the printer initialization. This pin is pulled high

internally. Refer to description of the parallel port for definition of

this pin in ECP and EPP mode.

EXTENSION FDD MODE: DIR2

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

pin of FDC.

EXTENSION 2FDD MODE: DIR2

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

the DIR pin of FDC.

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 description of the parallel port for definition of this pin in ECP and

EPP mode.

EXTENSION FDD MODE: DRVDEN0

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

DRVDEN0 pin of FDC.

EXTENSION 2FDD MODE: DRVDEN0

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

the DRVDEN0 pin of FDC.

Publication Release Date: April 1998

-11 -

Revision 0.62

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