W83792G Nuvoton Technology Corporation of America, W83792G Datasheet - Page 40

• Manufacturer Part Number: W83792G
• Description: IC MONITOR H/W 48-LQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83792G

• Function: Hardware Monitor
• Topology: ADC, Fan Control, Register Bank
• 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

8.5
Reset Condition: Resume Reset, INIT.
W83792D have the ability to control VRM(Voltage Regulator Module) enable. At normal power on,
VRM is always enabled. But once TTRIP1_N(Thermal Trip1) or TTRIP2_N is asserted, all VRM will be
disabled until resume reset, no matter TTRIP_N is written 1 again or not.
CR1F VRM Output Control
TTRIP2_N and TTRIP1_N, any of these two bits cleared as 0 means thermal trip shutdown is
happening. If VRM_EN is set, a zero will be outputted at pin 28 to shut down voltage regulator.
VRM Output Control
7
6
5
4
1
0
BIT
Mnemonic
VRM Output Control ---- Index 1F(Bank 0)
VRM_EN
DIR
VRMSTS
VRMOPV
TTRIP2_N
TTRIP1_N
NAME
Bank Index Attr BIT 7 BIT 6 BIT 5
0
ATTRIBUTE
1F
R/W
R/W
R/W
RO
RO
RO
RW
VRM_EN
Set to 1 will enable VRM Enable control. Clear to 0 enable
GPIO function.
Pin direction when VRM_EN. Set to 1, serves as output ; 0 will
change into input mode.
Current value on pin VRM_EN. For GPIO use
VRM_EN Output Value. When Thermal Trip occurs, this bit will
reset to 0 also. In GPIO mode, write this bit will force the value
output to pin.
Thermal Trip input 1. This bit is powered by 5VSB. It will latch
a 0 once THERMTRIP1 goes high. It can be reset to 1 by
5VDD Power on and resume reset.
Thermal Trip input 0. This bit is powered by 5VSB. It will latch
a 0 once THERMTRIP0 goes high. It can be reset to 1 by
5VDD Power on and resume reset.
1
DIR
0
- 34 -
VRMSTS VRMOPV reserve reserve TTRIP2_N TTRIP1_N
RO
BIT 4
DESCRIPTION
1
W83792AD/AG/D/G
BIT 3 BIT 2
0
0
BIT 1
1
BIT 0
1