FDC37B78X SMSC Corporation, FDC37B78X Datasheet - Page 177
FDC37B78X
Manufacturer Part Number
FDC37B78X
Description
Enhanced Super I/O Controller with ACPI Support/ Real Time Clock and Consumer IR
Manufacturer
SMSC Corporation
Datasheet
1.FDC37B78X.pdf
(258 pages)
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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
REGISTER
0x08 - 0x1F
ADDRESS
0x22 R/W
0x23 R/W
0x20 R
0x21 R
Reserved - Writes are ignored, reads return 0.
A
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
Chip Level, SMSC Defined
read
only
177
register
DESCRIPTION
which
provides
device
STATE
C
C
C
C
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