W83627EHF Datasheet, PDF (51/141 Pages) Winbond – evolving product from Winbonds most popular I/O family

W83627EHF/EF, W83627EHG/EG
6.8.4 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 32 1 0
SYSFANOUT Value
(1)If SYSFANOUT be programmed as PWM output (Bank0 Index 04h.bit0 is 0)
Bit 7-0: SYSFANOUT PWM Duty Cycle. Write FFh, SYSFANOUT is always logical High which means
duty cycle is 100%. Write 00h, SYSFANOUT is always logical Low which means duty cycle is
0%.
Note. XXh: PWM Duty Cycle output percentage is (XX/256*100%) during one cycle.
(2)If SYSFANOUT be programmed as DC Voltage output (Bank0 Index 04h.bit0 is 1)
Bit 7-2: SYSFANOUT voltage control.
Bit 1-0: Reserved.
OUTPUT Voltage =
AVCC
*
FANOUT
64
If AVCC= 3.3V , output voltage table is
BIT BIT BIT BIT BIT BIT OUTPUT BIT BIT BIT BIT BIT BIT OUTPUT
7 6 5 4 3 2 VOLTAGE 7 6 5 4 3 2 VOLTAGE
000000
0
100000
1.65
000001
0.05
100001
1.70
000010
0.10
100010
1.75
000011
0.15
100011
1.80
000100
0.21
100100
1.86
000101
0.26
100101
1.91
Publication Release Date: January 18, 2006
-45-
Revision 1.0