FDC37C669 datasheet(22/164 Pages) SMSC

Nome de Peças	FDC37C669

Descrição Electrónicos	PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support

PDF	164 Pages

Scroll/Zoom	100%

Fabricante Electrônico	SMSC [SMSC Corporation]

Página de início	http://www.smsc.com

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PS/2 Model 30 Mode

BIT 0 nDRIVE SELECT 2

Active low status of the DS2 disk interface

output.

BIT 1 nDRIVE SELECT 3

Active low status of the DS3 disk interface

output.

BIT 2 WRITE GATE

Active high status of the latched WGATE output

signal.

This bit is latched by the active going

edge of WGATE and is cleared by the read of

the DIR register.

BIT 3 READ DATA

Active high status of the latched RDATA output

signal. This bit is latched by the inactive going

edge of RDATA and is cleared by the read of the

DIR register.

BIT 4 WRITE DATA

Active high status of the latched WDATA output

signal. This bit is latched by the inactive going

edge of WDATA and is cleared by the read of

the DIR register.

This bit is not gated with

WGATE.

BIT 5 nDRIVE SELECT 0

Active low status of the DS0 disk interface

output.

BIT 6 nDRIVE SELECT 1

Active low status of the DS1 disk interface

output.

BIT 7 nDRV2

Active low status of the DRV2 disk interface

input.

nDRV2

nDS1

nDS0

WDATA

F/F

RDATA

F/F

WGATE

F/F

nDS3

nDS2

RESET

COND.

N/A

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