manual

3.7 PMBus Function (Optional)
EFRP-S3490 PMBUS Command Code Summary
Command Code Command Name
SMBus
Transaction Type
Number of
Data Bytes
20h VOUT_MODE READ BYTE 1
78h STATUS_BYTE(Note 2)
READ BYTE
1
79h STATUS_WORD(Note 2)
READ WORD
2
7Ah STATUS_VOUT (+12V)
READ BYTE
1
7Bh STATUS_IOUT (+12V)
READ BYTE
1
7Dh STATUS_TEMPERATURE
READ BYTE
1
81h STATUS_FANS_1_2 READ BYTE 1
88h READ_VIN READ WORD 2
2 DROW DAER NII_DAER h98
8Bh READ_VOUT (+12V)
READ WORD
2
8Ch READ_IOUT (+12V)
READ WORD
2
8Dh READ_TEMPERATURE_1 (Note 1)
READ WORD
2
90h READ_FAN_SPEED_1 READ WORD 2
TUOP_DAER h69
READ WORD
2
97h READ_PIN READ WORD 2
98h PMBUS_REVISION READ BYTE 1
DI_RFM h99
LEDOM_RFM hA9
9Bh MFR_REVSION
LAIRES_RFM hE9
A0h MFR_VIN_MIN READ WORD 2
A1h MFR_VIN_MAX READ WORD 2
A7h MFR_POUT_MAX READ WORD 2
B0h Power Status(Note 2)
READ BYTE
1
B1h Over Limit Status(Note 2)
READ BYTE
1
2 DROW DAER TUOI V5_daeR h2B
B3h Read_3V3 IOUT READ WORD 2
2 DROW DAER TUOV V5_daeR h4B
B5h Read_3V3 VOUT READ WORD 2
D0h Firmware Revision
Note 1 : T1 was detected within the hotspot temperature of PSU.
Note 2 : The content is described below.