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FDC87W22

Power I/O Controller

SMSC -> Microchip 

SYMBOL

PE

SLCT

PIN

I/O

FUNCTION

27

INt

PRINTER MODE: PE

An active high input on this pin indicates that the printer has

detected the end of the paper. This pin is pulled high

internally.

OD12

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

this pin in ECP and EPP mode.

EXTENSION FDD MODE: nWD2

OUT12t

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

that of the nWD pin.

OD12

EXTENSION ADAPTER MODE: XA0

This pin is system address A0 for the Extension Adapter.

EXTENSION 2FDD MODE: nWD2

This pin is for Extension FDD A and B; this function of this pin

_

is the same as that of the nWD pin.

JOYSTICK MODE: NC pin.

28

INt

PRINTER MODE: SLCT

An active high input on this pin indicates that the printer is

selected. This pin is pulled high internally. Refer to the

OD12

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

ECP and EPP mode.

OUT12t

OD12

EXTENSION FDD MODE: nWE2

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

those of the nWE pin.

EXTENSION ADAPTER MODE: XA1

This pin is system address A1 for the Extension Adapter.

EXTENSION 2FDD MODE: nWE2

_

This pin is for Extension FDD A and B; this function of this pin

is the same as that of the nWE pin.

JOYSTICK MODE: NC pin.

11

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