MCP4132 Microchip Technology Inc., MCP4132 Datasheet - Page 50

• Manufacturer Part Number: MCP4132
• Description: 7/8-bit Single/dual Spi Digital Pot With Volatile Memory
• Manufacturer: Microchip Technology Inc.

MCP413X/415X/423X/425X
7.4
The device supports the ability to execute commands
continuously. While the CS pin is in the active state (V
or V
received.
The following example is a valid sequence of events:
1.
2.
3.
4.
5.
6.
7.
8.
TABLE 7-3:
DS22060A-page 50
Write Data
Read Data
Increment Wiper
Decrement Wiper
High Voltage
High Voltage
High Voltage
High Voltage
IHH
CS pin driven active (V
Read Command.
Increment Command (Wiper 0).
Increment Command (Wiper 0).
Decrement Command (Wiper 1).
Write Command.
Write Command.
CS pin driven inactive (V
). Any sequence of valid commands may be
Continuous Commands
Write Data
Read Data
Increment Wiper
Decrement Wiper
COMMANDS
IL
IH
or V
).
Command Name
IHH
).
IL
Note 1: It is recommended that while the CS pin is
2: It is also recommended that long
active, only one type of command should
be issued. When changing commands, it
is recommended to take the CS pin
inactive then force it back to the active
state.
command strings should be broken down
into shorter command strings. This
reduces the probability of noise on the
SCK pin corrupting the desired SPI
command string.
# of Bits
16-Bits
16-Bits
16-Bits
16-Bits
8-Bits
8-Bits
8-Bits
8-Bits
© 2007 Microchip Technology Inc.
High Voltage
(V
IHH
pin?
Yes
Yes
Yes
Yes
) on CS
—
—
—
—