Datasheet

LTC2991
17
2991fd
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applicaTions inForMaTion
Table 1. I
2
C Base Address
I
2
C BASE ADDRESS ADR2 ADR1 ADR0
90h 0 0 0
92h 0 0 1
94h 0 1 0
96h 0 1 1
98h 1 0 0
9Ah 1 0 1
9Ch 1 1 0
9Eh 1 1 1
EEh Global Sync Address
S A A DATAW#ADDRESS COMMAND A
0 0 b7:b001001 a2:a0
FROM MASTER TO SLAVE
XXXXXb3:b0 0
2991 F05
P
FROM SLAVE TO MASTER
A: ACKNOWLEDGE (LOW)
A#: NOT ACKNOWLEDGE (HIGH)
R: READ BIT (HIGH)
W#: WRITE BIT (LOW)
S: START CONDITION
P: STOP CONDITION
S A A DATAW#ADDRESS COMMAND A
0 0 b7:b0
DATA
b7:b001001 a2:a0 XXXXXb3:b0 0 0
2991 F06
PA
S A A SW#ADDRESS COMMAND A
0 0 1 0
DATA
b7:b001001 a2:a0
ADDRESS
1001 a2:a0XXXXXb3:b0 1
2991 F07
PA#R
S A A SW#ADDRESS COMMAND A
0 0 1 0
A
0
DATA
b7:b001001 a2:a0
ADDRESS
1001 a2:a0XXXXXb3:b0 1
2991 F08
PA#DATA
b7:b0
R
Figure 5. LTC2991 Serial Bus Write Byte Protocol
Figure 6. LTC2991 Serial Bus Repeated Write Byte Protocol
Figure 7. LTC2991 Serial Bus Read Byte Protocol
Figure 8. LTC2991 Serial Bus Repeated Read Byte Protocol