LTC3882-1
35
Rev A
OPERATION
Figure 19. Alert Response Address Protocol
Figure 20. Alert Response Address Protocol with PEC
ALERT RESPONSE
ADDRESS
Rd A
NA P
38821 F19
S
7
8
1 1
1 1
1
DEVICE ADDRESS
ALERT RESPONSE
ADDRESS
Rd A
A
S
7
8
1 1
1
1
DEVICE ADDRESS
NA P
38821 F20
8
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
S
7
8
7
1
1
BYTE COUNT = N
8
1
1 1
1
1
1
A
Rd
A
…
…
…
A
DATA BYTE 1
8
DATA BYTE 2
8
1
1
A
A
P
NA
38821 F16
DATA BYTE N
PEC
8
8
1
1
1
SLAVE ADDRESS
COMMAND CODE
BYTE COUNT = M
Wr A
A
S
7
8
8
1
DATA BYTE 1
8
1
1 1
1
1
A
A
…
…
…
A
DATA BYTE 2
8
1
A
DATA BYTE M
8
1
SLAVE ADDRESS
BYTE COUNT = N
Rd A
A
Sr
7
8
DATA BYTE 1
8
1
1 1
1
1
A
…
P
38821 F17
1
…
…
A
DATA BYTE 2
8
NA
DATA BYTE N
8
1
SLAVE ADDRESS
COMMAND CODE
BYTE COUNT = M
Wr A
A
S
7
8
8
1
DATA BYTE 1
8
1
1 1
1
1
A
A
…
…
…
A
DATA BYTE 2
8
1
A
DATA BYTE M
8
1
SLAVE ADDRESS
BYTE COUNT = N
Rd A
A
Sr
7
8
DATA BYTE 1
8
1 1
1
1
A
…
…
…
A
DATA BYTE 2
8
1
A
DATA BYTE N
8
1
P
38821 F18
1
NA
PEC
8
1
