LTC4449 datasheet(35/108 Pages) LINER

35 / 108 page

LTC3882-1

Rev A

For more information www.analog.com

OPERATION

Figure 19. Alert Response Address Protocol

Figure 20. Alert Response Address Protocol with PEC

ALERT RESPONSE

ADDRESS

Rd A

NA P

38821 F19

1 1

DEVICE ADDRESS

ALERT RESPONSE

ADDRESS

Rd A

1 1

DEVICE ADDRESS

NA P

38821 F20

1 1

PEC

Figure 16. Block Read Protocol with PEC

Figure 17. Block Write – Block Read Process Call

Figure 18. Block Write – Block Read Process Call with PEC

SLAVE ADDRESS

COMMAND CODE

SLAVE ADDRESS

Wr A

A Sr

BYTE COUNT = N

1 1

…

DATA BYTE 1

DATA BYTE 2

38821 F16

DATA BYTE N

PEC

SLAVE ADDRESS

COMMAND CODE

BYTE COUNT = M

Wr A

DATA BYTE 1

1 1

…

DATA BYTE 2

DATA BYTE M

SLAVE ADDRESS

BYTE COUNT = N

Rd A

DATA BYTE 1

1 1

…

38821 F17

…

DATA BYTE 2

DATA BYTE N

SLAVE ADDRESS

COMMAND CODE

BYTE COUNT = M

Wr A

DATA BYTE 1

1 1

…

DATA BYTE 2

DATA BYTE M

SLAVE ADDRESS

BYTE COUNT = N

Rd A

DATA BYTE 1

1 1

…

DATA BYTE 2

DATA BYTE N

38821 F18

PEC

LTC4449 Datasheet(PDF) 35 Page - Linear Technology

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