LTC3882-1
34
Rev A
For more information
OPERATION
Figure 8. Write Byte Protocol with PEC
Figure 11. Read Byte Protocol
Figure 14. Read Word Protocol with PEC
Figure 9. Write Word Protocol
Figure 12. Read Byte Protocol with PEC
Figure 15. Block Read Protocol
Figure 10. Write Word Protocol with PEC
Figure 13. Read Word Protocol
SLAVE ADDRESS
COMMAND CODE
DATA BYTE
Wr A
A
A P
38821 F08
S
7
8
8
1
PEC
8
1 1
1
1 1
1
A
SLAVE ADDRESS
COMMAND CODE
SLAVE ADDRESS
Wr A
A Sr
P
38821 F11
S
7
8
7
1
1
DATA BYTE
8
1
1 1
1
1
1
1
A
Rd
NA
SLAVE ADDRESS
COMMAND CODE
SLAVE ADDRESS
Wr A
A
A
P
A
38821 F14
S
7
8
7
1
DATA BYTE LOW
8
DATA BYTE HIGH
PEC
8
8
1
1 1
1
1
1
1
1
Sr
1
A
1
Rd
A
SLAVE ADDRESS
COMMAND CODE
DATA BYTE LOW
Wr A
A
A P
38821 F09
S
7
8
8
1
DATA BYTE HIGH
8
1 1
1
1 1
1
A
SLAVE ADDRESS
COMMAND CODE
SLAVE ADDRESS
Wr A
A Sr
P
38821 F12
S
7
8
7
1
1
DATA BYTE
8
8
1
1 1
1
1
1
1
A
Rd
A
1
A
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
P
NA
38821 F15
DATA BYTE 1
8
DATA BYTE 2
DATA BYTE N
8
8
1
1
1
1
A
…
…
SLAVE ADDRESS
COMMAND CODE
DATA BYTE LOW
Wr A
A
A P
38821 F10
S
7
8
8
1
DATA BYTE HIGH
8
PEC
8
1
1 1
1
1 1
1
A
A
SLAVE ADDRESS
COMMAND CODE
SLAVE ADDRESS
Wr A
A
NA P
38821 F13
S
7
8
7
1
DATA BYTE LOW
8
DATA BYTE HIGH
8
1
1 1
1
Sr
1
1 1
1
A
1
Rd
A
Figure 7. Write Byte Protocol
SLAVE ADDRESS
COMMAND CODE
DATA BYTE
Wr A
A
A P
38821 F07
S
7
8
8
1 1
1
1 1
1
