Publication No. SBC329-HRM/1
Functional Description 71
5.18.2
PMBus Devices
A total of four PMBus-compatible devices are included on the SBC329, which allows
software to sense various parameters. This data can be used by system health
monitoring software (either on the SBC329 or on an external IPMI controller) to
determine the health and status of on-board power supplies, and board power
consumption.
Table 5-20 PMBus Device Data Monitored
Voltage Rail
Nominal
Voltage
Device
Data Available
P0V9
0.9V
LTC3880(1) page 0 Input Voltage/current, output voltage/current, inductor temperature
P0V9A
0.9V
LTC3880(1) page 1 Input Voltage/current, output voltage/current, inductor temperature
VDDQ
1.2V
LTC3880(2) page 0 Input Voltage/current, output voltage/current, inductor temperature
VCC_IO
0.95V
LTC3880(2) page 1 Input Voltage/current, output voltage/current, inductor temperature
P1V0
1.0V
LTC3880(3) page 0 Input Voltage/current, output voltage/current, inductor temperature
VS1 (Backplane)
12.0V
LT2975 Vin
Voltage, current, sense resistor temperature
VS2 (Backplane)
3.3V
LT2975 page 1
Voltage, current, sense resistor temperature
VS3 (Backplane)
5.0V
LT2975 page 0
Voltage, current, sense resistor temperature
3.3V_AUX (Backplane)
3.3V
LT2975 page 2
Voltage