Datasheet

MAX34451 PMBus 16-Channel V/I Monitor and
12-Channel Sequencer/Marginer
www.maximintegrated.com
Maxim Integrated │ 17
SMBus/PMBus Operation Examples
Table 4. PMBus/SMBus Serial-Port Address
Note: The device also responds to a slave address of 34h (this is the factory programming address); the device should not share the
same I
2
C bus with other devices that use this slave address.
R1 R2 R3 R4 C2 7-BIT SLAVE ADDRESS
— 220kΩ — — —
1110100(E8h)
220kΩ — — — — 1110101(EAh)
220kΩ — — — 100nF 0010010(24h)
22kΩ — — — 100nF 0010011(26h)
— — 0kΩ — — 1001100(98h)
— — 220kΩ — — 1001101(9Ah)
— — — 0kΩ — 1011000(B0h)
— — — 220kΩ — 1011001(B2h)
— 0kΩ — — — 1001110(9Ch)
KEY:
S=START
Sr=REPEATEDSTART
P=STOP
W=WRITEBIT(0)
R=READBIT(1)
A=ACKNOWLEDGE(0)
NA=NOTACKNOWLEDGE(1)
SHADEDBLOCK=SLAVETRANSACTION
READ WORD FORMAT
1 7 1 1 8 1 1 7 1 1 8 1 8 1 1
S
SLAVE
ADDRESS
W A
COMMAND
CODE
A Sr
SLAVE
ADDRESS
R A
DATABYTE
LOW
A
DATABYTE
HIGH
NA P
READ BYTE FORMAT
1 7 1 1 8 1 1 7 1 1 8 1 1
S
SLAVE
ADDRESS
W A
COMMAND
CODE
A Sr
SLAVE
ADDRESS
R A
DATABYTE NA P
WRITE WORD FORMAT
1 7 1 1 8 1 8 1 8 1 1
S
SLAVE
ADDRESS
W A
COMMAND
CODE
A
DATABYTE
LOW
A
DATABYTE
HIGH
A P
WRITE BYTE FORMAT
1 7 1 1 8 1 8 1 1
S
SLAVE
ADDRESS
W A
COMMAND
CODE
A
DATA
BYTE
A P
SENDBYTEFORMAT
1 7 1 1 8 1 1
S
SLAVE
ADDRESS
W A
COMMAND
CODE
A P