CAT5221_13 Datasheet, PDF (11/15 Pages) ON Semiconductor – Dual Digital Potentiometer (POT)

INC/DEC
Command
Issued
SCL
SDA
CAT5221
t_WRID
R_W
Voltage Out
Figure 13. Increment/Decrement Timing Limits
INSTRUCTION FORMAT
Table 13. READ WIPER CONTROL REGISTER (WCR)
S
DEVICE ADDRESSES
A
INSTRUCTION
T
C
A 0 1 0 1 A3 A2 A1 A0 K 1 0 0 1 0 P0 0
R
T
A
DATA
AS
C
CT
0 K76543210KO
P
Table 14. WRITE WIPER CONTROL REGISTER (WCR)
S
DEVICE ADDRESSES
A
INSTRUCTION
T
C
A 0 1 0 1 A3 A2 A1 A0 K 1 0 1 0 0 P0 0
R
T
A
DATA
AS
C
CT
0 K76543210KO
P
Table 15. READ DATA REGISTER (DR)
S
DEVICE ADDRESSES
A
INSTRUCTION
A
DATA
AS
T
C
C
CT
A 0 1 0 1 A3 A2 A1 A0 K 1 0 1 1 0 P0 R1 R0 K 7 6 5 4 3 2 1 0 K O
R
P
T
Table 16. WRITE DATA REGISTER (DR)
S
DEVICE ADDRESSES
A
INSTRUCTION
A
DATA
AS
T
C
C
CT
A 0 1 0 1 A3 A2 A1 A0 K 1 1 0 0 0 P0 R1 R0 K 7 6 5 4 3 2 1 0 K O
R
P
T
Table 17. GLOBAL TRANSFER DATA REGISTER (DR) TO WIPER CONTROL REGISTER (WCR)
S
DEVICE ADDRESSES
A
INSTRUCTION
AS
T
C
CT
A ^{0 1 0 1 A3 A2 A1 A0} K ^{0 0 0 1 0 0 R1 R0} K O
R
P
T
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