LPC61W492 查看數據表（PDF） - SMSC -> Microchip

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LPC61W492

Integrated Super I/O Controller for LPC Bus with Game and MIDI Ports/Plus Hardware Monitoring Functions

SMSC -> Microchip 

Multi-Mode Parallel Port, continued

SYMBOL

PIN

I/O

FUNCTION

nSTB

47

OD12 PRINTER MODE: nSTB

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: This pin is a tri-state output.

-

EXTENSION 2FDD MODE: This pin is a tri-state output.

PD0

42

I/O14t 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; its function is the same as

the nINDEX pin of FDC. It is pulled high internally.

INt

EXTENSION 2FDD MODE: nINDEX2

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

same as the nINDEX pin of FDC. It is pulled high internally.

PD1

41

I/O14t 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

INt

mode.

EXTENSION FDD MODE: nTRAK02

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

INt

the nTRAK0 pin of FDC. It is pulled high internally.

EXTENSION. 2FDD MODE: nTRAK02

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

same as the nTRAK0 pin of FDC. It is pulled high internally.

PD2

40

I/O14t 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

INt

mode.

EXTENSION FDD MODE: nWP2

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

INt

the nWP pin of FDC. It is pulled high internally.

EXTENSION. 2FDD MODE: nWP2

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

same as the nWP pin of FDC. It is pulled high internally.

14

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