Datasheet

Data Sheet AD5243/AD5248
Rev. B | Page 17 of 20
Write Mode
Table 9. AD5243 Write Mode
S 0 1 0 1 1 1 1 W A A0 SD X X X X X X A D7 D6 D5 D4 D3 D2 D1 D0 A P
Slave address byte Instruction byte Data byte
Table 10. AD5248 Write Mode
S 0 1 0 1 1 AD1 AD0 W A A0 SD X X X X X X A D7 D6 D5 D4 D3 D2 D1 D0 A P
Slave address byte Instruction byte Data byte
Read Mode
Table 11. AD5243 Read Mode
S
0
1
0
1
1
1
1
R
A
D7
D6
D5
D4
D3
D2
D1
D0
A
P
Slave address byte Data byte
Table 12. AD5248 Read Mode
S 0 1 0 1 1 AD1 AD0 R A D7 D6 D5 D4 D3 D2 D1 D0 A P
Slave address byte Data byte
Table 13. SDA Bits Descriptions
Bit Description
S Start condition.
P
Stop condition.
A Acknowledge.
AD0, AD1 Package pin-programmable address bits.
X Don’t care.
W
Write.
R Read.
A0 RDAC subaddress select bit.
SD Shutdown connects wiper to B terminal and open circuits the A terminal. It does not change the
contents of the wiper register.
D7, D6, D5, D4, D3, D2, D1, D0 Data bits.