W83697HF_05 Datasheet, PDF (60/102 Pages) Winbond – LPC I/O

W83697HF
Tolerance of Fan 1/2 target speed register.
Bit
Name
Read/Write
Description
7-4 TOL_FS2[3:0]
3-0 TOL_FS1[3:0]
Read/Write
Read/Write
Tolerance of Fan 2 Target Speed Count. Only for Fan
Speed Cruise mode.
Tolerance of Fan 1 Target Speed Count. Only for Fan
Speed Cruise mode.
Fan 1 PWM Stop Duty Cycle Register -- Index 08h
Power on default [7:0] = 0000,0001 b
Bit
Name
Read/Write
Description
7-0 STOP_DC1[7:0]
Read/Write In Thermal Cruise mode, PWM duty will be 0 if it
decreases to under this value. This register should be
written a non-zero minimum PWM stop duty cycle.
Fan 2 PWM Stop Duty Cycle Register -- 09h (Bank 0)
Power on default [7:0] = 0000,0001 b
Bit
Name
Read/Write
Description
7-0 STOP_DC2[7:0]
Read/Write
In Thermal Cruise mode, PWM duty will be 0 if it
decreases to under this register value. This register
should be written a non-zero minimum PWM stop duty
cycle.
Fan 1 Start-up Duty Cycle Register -- Index 0Ah
Power on default [7:0] = 0000,0001 b
Bit
Name
Read/Write
Description
7-0 START_DC1[7:0]
Read/Write
In Thermal Cruise mode, PWM duty will increase from 0
to this register value to provide a minimum duty cycle to
turn on the fan. This register should be written a fan
start-up duty cycle.
Fan 2 Start-up Duty Cycle Register -- Index 0Bh
Power on default [7:0] = 0000,0001 b
Bit
Name
Read/Write
Description
7-0 START_DC2[7:0]
Read/Write
In Thermal Cruise mode, PWM duty will increase from 0
to this register value to provide a minimum duty cycle to
turn on the fan. This register should be written a fan
start-up duty cycle.
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Publication Release Date: April 14, 2005
Revision2.0