LPC47M142-NC Standard Microsystems (SMSC), LPC47M142-NC Datasheet - Page 148
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LPC47M142-NC
Manufacturer Part Number
LPC47M142-NC
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.LPC47M142-NC.pdf
(205 pages)
Specifications of LPC47M142-NC
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SMSC DS – LPC47M14X
FAN1
Default = 0x00
on VTR POR
FAN2
Default = 0x00
on VTR POR
NAME
REG OFFSET
(R/W)
(R/W)
(hex)
56
57
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
– Different Modes for Fan in “Fan Speed Control and
Monitoring” section.
The fan speed may be doubled through bit 2 of Fan
Control Register at 0x58.
FAN Register 2
Bit[0] Fan Control
Bit[6:1] Duty Cycle Control for FAN2
Control the duty cycle of the FAN2 pin
Bit[7] Fan 2 Clock Select
This bit is used with the Fan 2 Clock Source Select and
the Fan 2 Clock Multiplier bits in the Fan Control register
(0x58) to determine the fan speed F
– Different Modes for Fan in “Fan Speed Control and
Monitoring” section.
The fan speed may be doubled through bit 3 of Fan
Control Register at 0x58.
Page 148
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
1=FAN2 pin is high
0=bits[6:1] control the duty cycle of the
FAN2 pin.
000000 = pin is low
100000 = 50% duty cycle
111111 = pin is high for 63, low for 1
DESCRIPTION
OUT
OUT
.
.
See Table 57
See Table 57
Rev. 03/19/2001
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