FDC37B78X データシートの表示（PDF） - SMSC -> Microchip

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FDC37B78X

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

SMSC -> Microchip 

REGISTER

Card Level

Reserved

Device ID

Hard wired

= 0x44

Device Rev

Hard wired

= 0x00

PowerControl

Default = 0x00.

on Vcc POR or

Reset_Drv

hardware

signal.

Power Mgmt

Default = 0x00.

on Vcc POR or

Reset_Drv

hardware signal

ADDRESS

0x08 - 0x1F

0x20 R

0x21 R

0x22 R/W

0x23 R/W

DESCRIPTION

Reserved - Writes are ignored, reads return 0.

Chip Level, SMSC Defined

A read only register which provides device

identification. Bits[7:0] = 0x44 when read

A read only register which provides device revision

information. Bits[7:0] = 0x00 when read

Bit[0] FDC Power

Bit[1] Reserved

Bit[2] Reserved

Bit[3] Parallel Port Power

Bit[4] Serial Port 1 Power

Bit[5] Serial Port 2 Power

Bit[6] Reserved

Bit[7] Reserved

= 0 Power off or disabled

= 1 Power on or enabled

Bit[0] FDC

Bit[1] Reserved

Bit[2] Reserved

Bit[3] Parallel Port

Bit[4] Serial Port 1

Bit[5] Serial Port 2

Bit[6] Reserved (read as 0)

Bit[7] Reserved (read as 0)

= 0 Intelligent Pwr Mgmt off

= 1 Intelligent Pwr Mgmt on

STATE

C

C

C

C

177

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