LPC47M112_07 SMSC [SMSC Corporation], LPC47M112_07 Datasheet - Page 151

• Manufacturer Part Number: LPC47M112_07
• Description: Enhanced Super I/O Controller with LPC Interface
• Manufacturer: SMSC [SMSC Corporation]

Enhanced Super I/O Controller with LPC Interface
Datasheet
SMSC DS – LPC47M112
GP3
Default = 0x00
on VTR POR
Bits 2 and 3 are
reset on VCC POR,
Hard Reset and VTR
POR
GP4
Default = 0x00
on VTR POR
GP5
Default = 0x00
on VTR POR
Bit 3 is reset on VCC
POR,
and VTR POR
GP6
Default = 0x00
on VTR POR
N/A
N/A
N/A
N/A
N/A
FAN1
Default = 0x00
on VTR POR
NAME
Hard
Reset
REG OFFSET
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(hex)
(R)
(R)
(R)
(R)
(R)
4D
4E
4F
50
51
52
53
54
55
56
DATASHEET
General Purpose I/0 Data Register 3
Bit[0] GP30
Bit[1] GP31
Bit[2] GP32
Bit[3] GP33
Bit[4] GP34
Bit[5] GP35
Bit[6] GP36
Bit[7] GP37
General Purpose I/0 Data Register 4
Bit[0] GP40
Bit[1] GP41
Bit[2] GP42
Bit[3] GP43
Bit[7:4] Reserved
General Purpose I/0 Data Register 5
Bit[0] GP50
Bit[1] GP51
Bit[2] GP52
Bit[3] GP53
Bit[4] GP54
Bit[5] GP55
Bit[6] GP56
Bit[7] GP57
General Purpose I/0 Data Register 6
Bit[0] GP60
Bit[1] GP61
Bit[7:2] Reserved
Reserved – reads return 0
Reserved – reads return 0
Reserved – reads return 0
Reserved – reads return 0
Reserved – reads return 0
FAN Register 1
Bit[0] Fan Control
Bit[6:1] Duty Cycle Control for FAN1
Control the duty cycle of the FAN1 pin
Bit[7] Fan 1 Clock Select
This bit is used with the Fan 1 Clock Source Select and the
Fan 1 Clock Multiplier bits in the Fan Control register
(0x58) to determine the fan speed F
Modes for Fan” table in “Fan Speed Control and
Monitoring” section.
The fan speed may be doubled through bit 2 of Fan
Control Register at 0x58.
Page 151
1=FAN1 pin is high
0=bits[6:1] control the duty cycle of the
FAN1 pin.
000000 = pin is low
100000 = 50% duty cycle
111111 = pin is high for 63, low for 1
DESCRIPTION
OUT
.
See “Different
Rev. 02-16-07