Datasheet

Data Sheet ADM1176
Rev. C | Page 17 of 24
Base Address A1 Pin State A0 Pin State A1 Pin Logic State A0 Pin Logic State Address in Binary
1
Address in Hex
Floating High 10 11 1001011X 0x96
High Ground 11 00 1001100X 0x98
High Resistor to ground 11 01 1001101X 0x9A
High Floating 11 10 1001110X 0x9C
High
High
11
11
1001111X
0x9E
1
X = don’t care.
SCL
START BY MASTER
1
9
1
9
R/W
D7
D6
D5
D4
D3
D2 D1
D0
ACKNOWLEDGE BY
SLAVE
ACKNOWLEDGE BY
SLAVE
ACKNOWLEDGE BY
SLAVE
ACKNOWLEDGE BY
SLAVE
FRAME 1
SLAVE ADDRESS
FRAME 2
COMMAND CODE
SCL
(CONTINUED)
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
1
9
1
9
STOP
BY
MASTER
SDA
(CONTINUED)
FRAME 3
DATA BYTE
FRAME N
DATA BYTE
06046-006
A0B
SDA
A0A
A1BA1A
0
0
1
Figure 32. General I
2
C Write Timing Diagram
A0B
SDA
A0A
A1BA1A
0
0
1
SCL
SDA
START BY MASTER
1
9
1
9
R/W
D7
D6
D5
D4
D3
D2 D1
D0
ACKNOWLEDGE BY
SLAVE
ACKNOWLEDGE BY
MASTER
NO ACKNOWLEDGE
ACKNOWLEDGE BY
MASTER
FRAME 1
SLAVE ADDRESS
FRAME 2
DATA BYTE
SCL
(CONTINUED)
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
1
9
1
9
STOP
BY
MASTER
SDA
(CONTINUED)
FRAME 3
DATA BYTE
FRAME N
DATA BYTE
06046-007
Figure 33. General I
2
C Read Timing Diagram
SCLSCL
SDA
P
S
t
HD;STA
t
HD;DAT
t
HIGH
t
SU;DAT
t
SU;STA
t
HD;STA
t
F
t
R
t
LOW
t
BUF
t
SU;STO
P
S
06046-008
Figure 34. Serial Bus Timing Diagram