W83793G Datasheet, PDF (56/131 Pages) Winbond – Winbond H/W Monitor

W83793G
MNEMONIC
Fan1CountH/L.
|
Fan12CountH/L.
REGISTER NAME
Fan tachometer readout high/low Byte
TYPE
RO
Fan1LimitH/L.
|
Fan Count Limit high/low Byte
RW
Fan12LimitH/L.
FanCtrl1.
Fan Output style Control
RW
FanCtrl2.
DefaultSpeed.
Default Fan Speed at power-on
RW
Fan1Duty.
|
Current Fan output Duty Cycle
RW
Fan8Duty.
PWM1Prescalar.
|
Fan PWM output frequency pre-scalar
RW
PWM8Prescalar.
Here listed registers which can read out tachometer values, and their limit registers. All these registers
are separated into 2 bytes. Reading tachometer count high byte will lock the corresponding low byte
to ensure next reading on low byte will get consistent data with high byte.
Due to Fan input 6~12 are multifunction pins, FanInControl provides selection between FanIn
functions or other functions.
Also here provides Fan Output style(DC/PWM), Duty cycle, and frequency controls.
8.11.1.2 Smart Fan Setup/Status registers
Registers of SmartFan setup resides in Bank 0 and Bank 2. Most used step timing control and critical
temperature setup are located in Bank 0, all others located in Bank 2.
- 52 -