参数资料
型号: MCP46XXEV
厂商: Microchip Technology
文件页数: 29/44页
文件大小: 0K
描述: EVAL BOARD FOR MCP46XX
标准包装: 1
主要目的: 数字电位器
嵌入式:
已用 IC / 零件: MCP4661
主要属性: 支持设备:MCP4631、Mcp4641、Mcp4651、MCP4661
已供物品: 带元件板,2 块裸板,文档
Installation and Operation
Double clicking on the MCP4661W0RD User I2CM Script will load the script details.
Figure 2-14 shows what the values mean in the Script Details. These values are hex
numbers.
The first value (02h), 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
(0Ch) a data byte and contains the Device Register Address, the Device Command,
and the two Most Significant bits (MSb) of the write data.
The I 2 C protocol now has a restart bit. So the first value (01h) is the number of bytes
that will be written. The second byte (5Fh) is the MCP4661 I2C Slave Address with the
R/W bit indicating a read ( 1 ). The last byte (02h) is the number of bytes that will be read.
Data Byte #1
(Device Slave Address + R/W bit)
# of Bytes that
will be written
Data Byte #2
(Device Address +
Command + Data bit “D8”)
# of Bytes that
will be written
Data Byte #3
(Device Slave Address + R/W bit)
# of Bytes that
will be read
FIGURE 2-14:
? 2010 Microchip Technology Inc.
Example Read Script.
DS51929A-page 29
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