ISL68201 Datasheet, PDF (24/32 Pages) Intersil Corporation – Single-Phase R4 Digital Hybrid PWM Controller

ISL68201
5. Block Read Protocol
1
7+1
1
S Slave Address_0 A
8
Command Code
11
A RS
7+1
1
Slave Address_1 A
8
Byte Count = N
1
8
1
8
1
A
Data Byte 2
A
Data Byte N
A
1
8
A Lowest Data Byte
8
PEC
11
NP
Optional 9 Bits for SMBus/PMBus
NOT used in I²C
Example command: 8B READ_VOUT (Two words, read voltage of the selected rail).
NOTE: That all Writable commands are read with one byte word protocol.
STOP (P) bit is NOT allowed before the repeated START condition when “reading” contents of a register.
6. Group Command Protocol - No more than one command can be sent to the same Address
1
7+1
1
8
1
8
1
8
1
S Slave ADDR1_0 A Command Code A
Low Data Byte
A
High Data Byte
A
1
7+1
1
8
1
8
1
8
1
RS Slave ADDR2_0 A Command Code A
Data Byte
A
PEC
A
1
7+1
1
8
1
8
1
8
1
RS
Slave ADDR3_0 A ^{Command Code} A
Low Data Byte
A High Data Byte A
8
PEC
8
PEC
1
A
11
AP
Optional 9 Bits for SMBus/PMBus
NOT used in I²C
FIGURE 24. SMBus/PMBus/I²C COMMAND PROTOCOL
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FN8696.1
March 7, 2016