FDC37B78X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

MFG CO.

FDC37B78X

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

SMSC -> Microchip 

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PHASE

Command

PERPENDICULAR MODE

DATA BUS

R/W D7 D6 D5 D4 D3 D2 D1

D0

REMARKS

W

0 00100

1

0 Command Codes

OW 0 D3 D2 D1 D0 GAP WGATE

PHASE

Command

Result

INVALID CODES

DATA BUS

R/W D7 D6 D5 D4 D3 D2 D1 D0

REMARKS

W

----- Invalid Codes -----

Invalid Command Codes

(NoOp - FDC goes into

Standby State)

R

------- ST0 -------

ST0 = 80H

PHASE

Command

Result

LOCK

DATA BUS

R/W

D7

D6 D5

D4

D3 D2 D1 D0

REMARKS

W LOCK 0 0

1

0 1 0 0 Command Codes

R

0

0 0 LOCK 0 0 0 0

SC is returned if the last command that was issued was the Format command. EOT is returned if the

last command was a Read or Write.

Note: These bits are used internally only. They are not reflected in the Drive Select pins. It is the

user's responsibility to maintain correspondence between these bits and the Drive Select pins (DOR).

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