![Winbond W83627DHG Manual Download Page 69](http://html1.mh-extra.com/html/winbond/w83627dhg/w83627dhg_manual_984492069.webp)
W83627DHG
Publication Release Date: Aug, 22, 2007
-57- Version
1.4
8.3 SYSFANOUT PWM Output Frequency Configuration Register - Index 00h
(Bank 0)
Register Location:
00h
Power on Default Value: 04h
Attribute: Read/Write
Size: 8
bits
7 6 5 4 3 2 1 0
PWM_CLK_SEL1
PWM_SCALE1
The register is meaningful only when SYSFANOUT is programmed for PWM output (
i.e.,
Bank0 Index 04h, bit 0 is 0).
Bit 7: SYSFANOUT PWM Input Clock Source Select. This bit selects the clock source for PWM output
frequency.
0: clock source is 24 MHz.
1: clock source is 180 KHz.
Bit 6-0: SYSFANOUT PWM Pre-Scale divider.
The clock source for PWM output is divided by this
seven-bit value to calculate the actual PWM output frequency.
PWM output frequency
=
256
1
Divider
Pre_Scale
Clock
Input
∗
The maximum value of the divider is 127 (7Fh), and it should not be set to 0.
8.4 SYSFANOUT Output Value Select Register - Index 01h (Bank 0)
Register Location:
01h
Power on Default Value: FFh
Attribute: Read/Write
Size: 8
bits
7 6 5 4 3 2 1 0
SYSFANOUT Value
Summary of Contents for W83627DHG
Page 2: ......