CAT5269 Datasheet, PDF (11/15 Pages) Catalyst Semiconductor – Dual Digitally Programmable Potentiometers (DPP) with 256 Taps and 2-wire Interface

Figure 10. Increment/Decrement Timing Limits
INC/DEC
Command
Issued
SCL
SDA
R_W
Voltage Out
CAT5269
t_WRL
INSTRUCTION FORMAT
Read Wiper Control Register (WCR)
S _{DEVICE ADDRESSES} A
INSTRUCTION ^A
DATA
AS
T
A
0 1 01 A AAA
C
K
10 0 1 0 0 PP
C
K
76
5
43
2 10
C
K
T
O
R
3 210
10
P
T
Write Wiper Control Register (WCR)
S _{DEVICE ADDRESS} A
INSTRUCTION ^A
T
A
0 1 01 A AAA
C
K
10
1 00
0PP
C
K
R
3 210
10
T
DATA
AS
76
5
43
2 10
C
K
T
O
P
Read Data Register (DR)
S _{DEVICE ADDRESS} A
INSTRUCTION ^A
T
A
0 1 01 A AAA
C
K
10
1 1 R RP P
C
K
R
3 210
1 01 0
T
DATA
AS
76
5
43
2 10
C
K
T
O
P
Write Data Register (DR)
S _{DEVICE ADDRESS} A
T
A
0 1 01 A AA A
C
K
R
3 21 0
T
INSTRUCTION ^A
11
0 0 R RP P
C
K
1 01 0
DATA
AS
76
5
43
2 10
C
K
T
O
P
11
Document No. 2123, Rev. B