W83627THF_06 Datasheet, PDF (137/142 Pages) Winbond – Winbond LPC I/O

W83627THF/W83627THG
14.14 AUXFANOUT PWM Output Frequency Configuration Register - Index 10h
Register Location:
10h
Power on Default Value:
01h
Attribute:
Read Only
Size:
8 bits
7 6 5 4 32 1 0
PWM_SCALE3
PWM_CLK_SEL3
The register is meaningful when AUXFANOUT be programmed as PWM output.
Bit 7: AUXFANOUT PWM Input Clock Source Select. This bit selects the clock source of PWM output
frequency.
Set to 0, select 24 MHz.
Set to 1, select 180 KHz.
Bit 6-0: AUXFANOUT PWM Pre-Scale divider. This is the divider of clock source of PWM output
frequency. The maximum divider is 128 (7Fh). This divider should not be set to 0.
01h : divider is 1
02h : divider is 2
03h : divider is 3
:
:
the formula is
PWM output frequency = ^{Input Clock} ∗ ¹
Pre_Scale Divider 256
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