CAT5241 Datasheet, PDF (11/16 Pages) Catalyst Semiconductor – Quad Digitally Programmable Potentiometers (DPP™) with 64 Taps and 2-wire Interface

Figure 10. Increment/Decrement Timing Limits
INC/DEC
Command
Issued
SCL
SDA
R_W
Voltage Out
t_WRID
CAT5241
INSTRUCTION FORMAT
Read Wiper Control Register (WCR)
S DEVICE ADDRESSES A
INSTRUCTION
A
DATA
AS
T _{0 1 0 1 A3 A2 A1 A0} C _{1 0 0 1 P1 P0 0 0} C _{7 6 5 4 3 2 1 0} C T
A
K
K
KO
R
P
T
Write Wiper Control Register (WCR)
S DEVICE ADDRESSES A
INSTRUCTION
A
DATA
AS
T _{0 1 0 1 A3 A2 A1 A0} C _{1 0 1 0 P1 P0 0 0} C _{7 6 5 4 3 2 1 0} C T
A
K
K
KO
R
P
T
Read Data Register (DR)
S DEVICE ADDRESSES A
T _{0 1 0 1 A3 A2 A1 A0} C
A
K
R
T
INSTRUCTION
A
1 0 1 1 P1 P0 R1 R0 ^C
K
DATA
AS
76543210C ^T
KO
P
Write Data Register (DR)
S DEVICE ADDRESSES A
T _{0 1 0 1 A3 A2 A1 A0} C
A
K
R
T
INSTRUCTION
A
1 1 0 0 P1 P0 R1 R0 ^C
K
DATA
AS
76543210C ^T
KO
P
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11
Characteristics subject to change without notice
Doc. No. MD-2011 Rev. R