F81867 Datasheet, PDF (239/315 Pages) Feature Integration Technology Inc. – 6 UARTs μSuper IO With 128 Bytes FIFO and Power Saving Functions

F81867
FAN Type Select Register ⎯ Offset 94h FAN_PROG_SEL = 0
Bit
Name
R/W Reset Default
Description
7-6
Reserved
-
-
- Reserved.
00: Output PWM mode (push pull) to control fans.
01: Use linear fan application circuit to control fan speed by fan’s
power terminal.
5-4 FAN3_TYPE
10: Output PWM mode (open drain) to control Intel 4-wire fans.
R/W 3VCC 2’b 0S
11: Reserved.
Bit 0 is power on trap by FANCTRL3
0: FANCTRL3 is pull up by external resistor.
1: FANCTRL3 is pull down by internal 100K Ω resistor.
00: Output PWM mode (push pull) to control fans.
01: Use linear fan application circuit to control fan speed by fan’s
3-2 FAN2_TYPE
power terminal.
10: Output PWM mode (open drain) to control Intel 4-wire fans.
R/W 3VCC 2’b 0S
11: Reserved.
Bit 0 is power on trap by FANCTRL2
0: FANCTRL2 is pull up by external resistor.
1: FANCTRL2 is pull down by internal 100K Ω resistor.
00: Output PWM mode (push pull) to control fans.
01: Use linear fan application circuit to control fan speed by fan’s
1-0 FAN1_TYPE
power terminal.
10: Output PWM mode (open drain) to control Intel 4-wire fans.
R/W 3VCC 2’b 0S
11: Reserved.
Bit 0 is power on trap by FANCTRL1
0: FANCTRL1 is pull up by external resistor.
1: FANCTRL1is pull down by internal 100K Ω resistor.
S: Register default values are decided by trapping.
239
Dec, 2011
V0.12P