LTC3613 datasheet(20/44 Pages) AD

20 / 44 page

LTC7131-1

Rev. 0

For more information www.analog.com

OPERATION

SLAVE ADDRESS

COMMAND CODE

DATA BYTE

Wr A

A P

7131-1 F05

1 1

SLAVE ADDRESS

COMMAND CODE

DATA BYTE LOW

Wr A

A P

7131-1 F06

DATA BYTE HIGH

1 1

Figure 5. Write Byte Protocol

Figure 6. Write Word Protocol

Figure 7. Send Byte Protocol

SLAVE ADDRESS Wr A

A P

7131-1 F07

1 1

COMMAND CODE

SLAVE ADDRESS

COMMAND CODE

SLAVE ADDRESS

Wr A

A P

7131-1 F08

DATA BYTE LOW

DATA BYTE HIGH

1 1

SLAVE ADDRESS

COMMAND CODE

SLAVE ADDRESS

Wr A

A Sr

7131-1 F09

DATA BYTE

1 1

Figure 8. Read Word Protocol

Figure 9. Read Byte Protocol

SLAVE ADDRESS

DATA BYTE

Wr A

A P

7131-1 F04

START CONDITION

REPEATED START CONDITION

READ (BIT VALUE OF 1)

WRITE (BIT VALUE OF 0)

SHOWN UNDER A FIELD INDICATES THAT THAT

FIELD IS REQUIRED TO HAVE THE VALUE OF x

ACKNOWLEDGE (THIS BIT POSITION MAY BE 0

FOR AN ACK OR 1 FOR A NACK)

STOP CONDITION

PEC PACKET ERROR CODE

MASTER TO SLAVE

SLAVE TO MASTER

CONTINUATION OF PROTOCOL

1 1

...

Figure 4. PMBus Packet Protocol Diagram Element Key

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