W83791G Nuvoton Technology Corporation of America, W83791G Datasheet - Page 68

• Manufacturer Part Number: W83791G
• Description: IC MONITOR H/W 48-LQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83791G

• Function: Hardware Monitor
• Topology: ADC
• Sensor Type: External
• Sensing Temperature: External Sensor
• Output Type: I²C™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.81 FAN4_PRE_SCALE register ⎯ Index 9Eh (Bank 0)
Power on default: 01h
PWM frequency = (Input clock / pre-scale) / 256
7.82 FAN5_PRE_SCALE register ⎯ Index 9Fh (Bank 0)
Power on default: 01h
PWM frequency = (Input clock / pre-scale) / 256
7
6:0
7
6:0
BIT
BIT
PWM_CLK_SEL4
PRE_SCALE4
[6:0]
PWM_CLK_SEL5
PRE_SCALE5[6:0]
NAME
NAME
Read /Write
Read /Write
ATTRIBUTE
ATTRIBUTE
R/W
R/W
PWM 4 Input Clock Select. This bit select Fan 4 input
clock to pre-scale divider.
0: 3 MHz
1: 125 KHz
Fan 4 Input Clock Pre-Scale. The divider of input
clock is the number defined by pre-scale. Thus, writing
0 transfers the input clock directly to counter. The
maximum divider is 128 (7Fh).
00h : divider is 1
01h : divider is 2
02h : divider is 3
PWM 5 Input Clock Select. This bit select Fan 5 input
clock to pre-scale divider.
0: 3 MHz
1: 125 KHz
Fan 5 Input Clock Pre-Scale. The divider of input
clock is the number defined by pre-scale. Thus, writing
0 transfers the input clock directly to counter. The
maximum divider is 128 (7Fh).
00h : divider is 1
01h : divider is 2
02h : divider is 3
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Publication Release Date: April 14, 2006
DESCRIPTION
DESCRIPTION
W83791D/G
Revision 1.1