W83783S Information Storage Devices, Inc, W83783S Datasheet - Page 44

• Manufacturer Part Number: W83783S
• Description: H/w Monitor: 3 Temp.(thermal Diode), 6 Vol., 2 PWM Fan Control
• Manufacturer: Information Storage Devices, Inc

Bit 3: Set to 1. Enable PWMOUT1 PWM Control
Bit 2-0: PWMOUT2 clock Selection.
7.25 VBAT Monitor Control Register -- Index 5Dh (Bank 0)
Register Location:
Power on Default Value
Attribute:
Size:
Bit 7: Fan3 divisor Bit 2.
Bit 6: Fan2 divisor Bit 2.
Bit 5: Fan1 divisor Bit 2.
Bit 4: Reserved
Bit 3: Reserved
Bit 2: Temperature sensor 1 select into thermal diode such as Pentium II CPU supported. Set to 1,
Bit 1: Temperature Sensor 2 type selection. Defined as DIODES1 described in the bit 2.
Bit 0: Reserved
select bipolar sensor. Set to 0, select thermistor sensor.
Fan divisor table :
Bit 2
<2:0> = 000: 46.87K Hz
<2:0> = 001: 23.43K Hz (Default)
<2:0> = 010: 11.72K Hz
<2:0> = 011: 5.85K Hz
<2:0> = 100: 2.93K Hz
0
0
0
0
Bit 1
0
0
1
1
Bit 0
0
1
0
1
7
6
Fan
Divisor
5Dh
<7:0> 0000-0000. Reset by MR.
Read/Write
8 bits
5
1
2
4
8
4
3
2
Bit 2
- 38 -
1
1
1
1
1
0
Bit 1
0
0
1
1
Reserved
DIODES2
DIODES1
Reserved
Reserved
FANDIV1_B2
FANDIV2_B2
FANDIV3_B2
Bit 0
0
1
0
1
Publication Release Date: April 1999
Fan Divisor
128
16
32
64
W83783S
Preliminary
Revision 0.55