Datasheet

Data Sheet ADM1276
Rev. C | Page 35 of 48
PMBus COMMAND REFERENCE
Command codes are in hexadecimal format.
Table 9. PMBus Command Summary
Command Code Command Name SMBus Transaction Type Number of Data Bytes Default Value at Reset
0x01 OPERATION Read/write byte 1 0x80
0x03
CLEAR_FAULTS
Send byte
0
Not applicable
0x19 CAPABILITY Read byte 1 0xB0
0x42 VOUT_OV_WARN_LIMIT Read/write word 2 0x0FFF
0x43 VOUT_UV_WARN_LIMIT Read/write word 2 0x0000
0x4A IOUT_OC_WARN_LIMIT Read/write word 2 0x0FFF
0x57
VIN_OV_WARN_LIMIT
Read/write word
2
0x0FFF
0x58 VIN_UV_WARN_LIMIT Read/write word 2 0x0000
0x6B PIN_OP_WARN_LIMIT Read/write word 2 0x7FFF
0x78 STATUS_BYTE Read byte 1 0x00
0x79 STATUS_WORD Read word 2 0x0000
0x7A STATUS_VOUT Read byte 1 0x00
0x7B
STATUS_IOUT
Read byte
1
0x00
0x7C STATUS_INPUT Read byte 1 0x00
0x80 STATUS_MFR_SPECIFIC Read byte 1 0x00
0x86 READ_EIN Block read 1 (byte count) + 6 (data) 0x06, 0x0000, 0x00, 0x000000
0x88 READ_VIN Read word 2 0x0000
0x8B READ_VOUT Read word 2 0x0000
0x8C READ_IOUT Read word 2 0x0000
0x97 READ_PIN Read word 2 0x0000
0x98 PMBUS_REVISION Read byte 1 0x22
0x99 MFR_ID Block read 1 (byte count) + 3 (data) 0x03 + ASCII “ADI”
0x9A MFR_MODEL Block read 1 (byte count) + 9 (data) 0x09 + ASCII “ADM1276-3”
0x9B
MFR_REVISION
Block read
1 (byte count) + 1 (data)
0x01 + ASCII “0”
0xD0 PEAK_IOUT Read/write word 2 0x0000
0xD1 PEAK_VIN Read/write word 2 0x0000
0xD2 PEAK_VOUT Read/write word 2 0x0000
0xD3 PMON_CONTROL Read/write byte 1 0x01
0xD4 PMON_CONFIG Read/write byte 1 0xAF
0xD6 ALERT2_CONFIG Read/write word 2 0x8000
0xD7 IOUT_WARN2_LIMIT Read/write word 2 0x0000
0xD8 DEVICE_CONFIG Read/write byte 1 0x00
0xD9 POWER_CYCLE Send byte 0 Not applicable
0xDA PEAK_PIN Read/write word 2 0x0000
0xDB
READ_PIN_EXT
Block read
1 (byte count) + 3 (data)
0x03, 0x000000
0xDC READ_EIN_EXT Block read 1 (byte count) + 8 (data) 0x08, 0x000000, 0x0000, 0x000000