W83977EF-AW(2003) View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

W83977EF-AW
(Rev.:2003)

WINBOND I/O

Winbond 

W83977EF

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

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 2003

-13 -

Revision 1.1

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