FDC87W21 Ver la hoja de datos (PDF) - SMSC -> Microchip

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FDC87W21

Power I/O Controller with Fast Infrared Support

SMSC -> Microchip 

SYMBOL PIN

I/O

FUNCTION

PD0

9

I/O24t 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.

INt EXTENSION FDD MODE: nINDEX2

This pin is for Extension FDD B; the function of this pin is the same

as that of the nINDEX pin. This pin is pulled high internally.

I/O24t EXTENSION ADAPTER MODE: XD0

This pin is system data bus D0 for the Extension Adapter.

INt EXTENSION 2FDD MODE: nINDEX2

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

the same as nINDEX pin. This pin is pulled high internally.

I/O24t JOYSTICK MODE: JP0

This pin is the paddle 0 input for joystick.

PD1

10

I/O24t PRINTER MODE: PD1

Parallel port data bus bit 1. Refer to the description of the parallel

port for the definition of this pin in ECP and EPP mode.

INt EXTENSION FDD MODE: nTRAK02

This pin is for Extension FDD B; the function of this pin is the same

as that of the nTRAK0 pin. This pin is pulled high internally.

I/O24t EXTENSION ADAPTER MODE: XD1

This pin is system data bus D1 for the Extension Adapter.

INt EXTENSION. 2FDD MODE: nTRAK02

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

the same as nTRAK0 pin. This pin is pulled high internally.

I/O24t JOYSTICK MODE: JP1

This pin is the paddle 1 input for joystick.

PD2

11

I/O24t PRINTER MODE: PD2

Parallel port data bus bit 2. Refer to the description of the parallel

port for the definition of this pin in ECP and EPP mode.

INt EXTENSION FDD MODE: nWP2

This pin is for Extension FDD B; the function of this pin is the same

as that of the nWP pin. This pin is pulled high internally.

I/O24t EXTENSION ADAPTER MODE: XD2

This pin is system data bus D2 for the Extension Adapter.

INt EXTENSION. 2FDD MODE: nWP2

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

the same as that of the nWP pin. This pin is pulled high internally.

-

JOYSTICK MODE: NC pin

13

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