FDC37B78X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37B78X

Enhanced Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR

SMSC -> Microchip 

NAME

FDD Type

Register

Default = 0xFF

on Vcc POR

or Reset_Drv

FDD0

Default = 0x00

on Vcc POR

or Reset_Drv

FDD1

REG INDEX

0xF2 R/W

0xF3 R

0xF4 R/W

0xF5 R/W

DEFINITION

Bits[1:0] Floppy Drive A Type

Bits[3:2] Floppy Drive B Type

Bits[5:4] Reserved (could be used to store Floppy Drive

C type)

Bits[7:6] Reserved (could be used to store Floppy Drive

D type)

Note: The FDC37B78x supports two floppy drives

Reserved, Read as 0 (read only)

Bits[1:0] Drive Type Select: DT1, DT0

Bits[2] Read as 0 (read only)

Bits[4:3] Data Rate Table Select: DRT1, DRT0

Bits[5] Read as 0 (read only)

Bits[6] Precompensation Disable PTS

=0 Use Precompensation

=1 No Precompensation

Bits[7] Read as 0 (read only)

Refer to definition and default for 0xF4

STATE

C

C

C

C

188

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