User manual

Installation and Operation
© 2010 Microchip Technology Inc. DS51929A-page 33
FIGURE 2-17: MCP4661 Transaction Window - Wiper 0 Writes and Reads.
FIGURE 2-18: MCP4661 Transaction Window - Wiper 0 Decrements.
9-bit data value (07Fh)
9-bit data value (07Fh)
written to
read from
9-bit data value (0FFh)
written to
Wiper 0 register
Wiper 0 register
Wiper 0 register
Wiper 0 register
read from
9-bit data value (0FFh)
Wiper 0 register
read from
9-bit data value (03Fh)
9-bit data value (03Fh)
written to
Wiper 0 register
Data value (07Ch) read from Wiper 0 register after 3 Decrement Commands
Data value (07Fh) read
from Wiper 0 register