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CAT5419 Datasheet, PDF (11/18 Pages) Catalyst Semiconductor – Dual Digitally Programmable Potentiometers (DPP) with 64 Taps and 2-wire Interface
Figure 10. Increment/Decrement Timing Limits
INC/DEC
Command
Issued
SCL
SDA
RW
Voltage Out
CAT5419
tWRID
INSTRUCTION FORMAT
Read Wiper Control Register (WCR)
S DEVICE ADDRESSES A
INSTRUCTION A
DATA
AS
T
A
0
1 0 1 A3 A2 A1 A0
C
K
10
0
10
0 0 P0
C
K
76
5
43
2 10
C
K
T
O
R
00
P
T
Write Wiper Control Register (WCR)
S DEVICE ADDRESSES A
INSTRUCTION A
DATA
AS
T
A
0 1 0 1 A3 A2 A1 A0
C
K
10
1
00
0 0 P0
C
K
76
5
43
2 10
C
K
T
O
R
00
P
T
Read Data Register (DR)
S DEVICE ADDRESS A
T
A
0
1 01
A3 A2A1 A0
C
K
R
T
INSTRUCTION
A
DATA
AS
1 01
1 R1 R0 0 P0
C
K
7
6
5
4
3
210
C
K
T
O
00
P
Write Data Register (DR)
S DEVICE ADDRESS A
T
A
0
1
0 1 A3 A2A1 A0
C
K
R
T
INSTRUCTION
A
DATA
AS
1 1 0 0 R1 R0 0 P0
C
K
7
6
5
4
3
2
1
0
C
K
T
O
00
P
11
Document No. 2115, Rev. F