CAT5251 Datasheet, PDF (12/15 Pages) Catalyst Semiconductor – Quad Digitally Programmable Potentiometer (DPP) with 256 Taps and SPI Interface

CAT5251
INSTRUCTION FORMAT (continued)
Global Transfer Data Register (DR) to Wiper Control Register (WCR)
DEVICE ADDRESSES INSTRUCTION
CS ^{0 1 0 1 0 0 A A 0 0 0 1 R R 0 0} CS
10
10
Global Transfer Wiper Control Register (WCR) to Data Register (DR)
DEVICE ADDRESSES INSTRUCTION
CS ^{0 1 0 1 0 0 A A 1 0 0 0 R R 0 0} CS ^{High Voltage}
10
10
Write Cycle
Transfer Wiper Control Register (WCR) to Data Register (DR)
DEVICE ADDRESSES INSTRUCTION
CS ^{0 1 0 1 0 0 A A 1 1 1 0 R R P P} CS ^{High Voltage}
10
1 01 0
Write Cycle
Transfer Data Register (DR) to Wiper Control Register (WCR)
DEVICE ADDRESSES INSTRUCTION
CS ^{0 1 0 1 0 0 A A 1 1 0 1 R R P P} CS
10
1 01 0
Increment (I)/Decrement (D) Wiper Control Register (WCR)
DEVICE ADDRESSES INSTRUCTION
DATA
CS ^{0 1 0 1 0 0 A A 0 0 1 0 0 0 P P I/D I/D}
10
10
•••
I/D I/D _CS
Notes:
(1) Any write or transfer to the Non-volatile Data Registers is followed by a high voltage cycle after a STOP has been issued.
Document No. 2017, Rev. D
12