MCP46XXEV Microchip Technology, MCP46XXEV Datasheet - Page 28

• Manufacturer Part Number: MCP46XXEV
• Description: MCP46XX Evaluation Board DEVTOOL - Analog
• Manufacturer: Microchip Technology
• Series: -r

Specifications of MCP46XXEV

• Main Purpose: Digital Potentiometer
• Embedded: No
• Utilized Ic / Part: MCP4661
• Primary Attributes: Devices Supported MCP4631, Mcp4641, Mcp4651, MCP4661
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP46XXEV Evaluation Board User’s Guide
DS51929A-page 28
Double clicking on the MCP4661W0WR User I2CM Script will load the script details.
Figure 2-13 shows what the values mean in the Script Details. These values are hex
numbers.
The first value (03h), is the number of bytes that will be written. The second byte (5Eh)
is the MCP4661 I2C Slave Address with the R/W bit indicating a write (‘0’). The third
byte (00h) is a data byte and contains the Device Register Address, the Device
Command, and the two Most Significant bits (MSb) of the write data. The fourth byte
(7Fh) is the 2nd data byte and contains the remaining 8 bits of the write data.
FIGURE 2-13:
Data Byte #2
(Device Register Address +
Command + Data bit “D8”)
Data Byte #1
(Device Slave Address + R/W bit)
Example Write Script.
Data Byte #3
(Write Data “D7:D0”)
Number of Bytes that will
be written
© 2010 Microchip Technology Inc.