Rainbow Electronics MAX16064 User Manual
Page 29
MAX16064
±0.3% Accurate, Quad, Power-Supply Controller with
Active-Voltage Output Control and PMBus Interface
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29
S
= START CONDITION
SR = REPEATED START CONDITION
P
= STOP CONDITION
= SLAVE TRANSMISSION
SEND BYTE FORMAT
COMMAND BYTE: SEND
COMMAND WITH NO
DATA
PEC
S
ADDR
W
A
COMMAND
A
7 BITS
8 BITS
8 BITS
DATA BYTES: DATA FOR THE COMMAND
SET BY THE COMMAND BYTE
READ WORD FORMAT
DATA0
A
DATA1
A
PEC
8 BITS
SR
ADDR
R
A
7 BITS
SLAVE ADDRESS:
REPEATED DUE TO
CHANGE IN DATA-
FLOW DIRECTION
DATA BYTES: DATA FOR THE
COMMAND SET BY THE
COMMAND BYTE
WRITE WORD FORMAT
S
ADDR
W
A
COMMAND
A
7 BITS
8 BITS
DATA0
A
DATA1
A
PEC
8 BITS
8 BITS
8 BITS
S
ADDR
W
A
COMMAND
A
7 BITS
8 BITS
8 BITS
COMMAND BYTE:
SELECTS TO WHICH
COMMAND PARAMETER
TO WRITE
COMMAND BYTE:
SELECTS TO WHICH
COMMAND PARAMETER
TO WRITE
COMMAND BYTE:
SELECTS FROM WHICH
COMMAND PARAMETER
TO READ
COMMAND BYTE:
SELECTS FROM WHICH
COMMAND PARAMETER
TO READ
DATA BYTE:
DATA FOR
THE COMMAND
SET BY THE
COMMAND BYTE
SLAVE
ADDRESS
SLAVE
ADDRESS
SLAVE
ADDRESS
SLAVE
ADDRESS
DATA BYTES: DATA
FOR THE COMMAND
SET BY THE
COMMAND BYTE
READ BYTE FORMAT
WRITE BYTE FORMAT
SLAVE ADDRESS:
REPEATED DUE TO
CHANGE IN DATA-
FLOW DIRECTION
DATA
NA
P
8 BITS
SR
ADDR
R
A
7 BITS
S
ADDR
W
A
COMMAND
A
7 BITS
8 BITS
DATA
A
8 BITS
S
ADDR
W
A
COMMAND
A
7 BITS
8 BITS
P
PEC
A
8 BITS
A
PEC
8 BITS
A
P
P
8 BITS
A
P
NA
Figure 14. SMBus Protocols with PEC