Microchip Technology MCP3421EV Benutzerhandbuch
Quick Start Instructions
© 2009 Microchip Technology Inc.
DS51793A-page 21
FIGURE 1-15:
Read Command and Data on I
2
C bus. Note the RDY bit in 4th byte is “0”. This means
the conversion data just read is the latest conversion data. After the RDY bit is read out at the 4th byte, the
RDY bit becomes “1” in the 5th byte (repeated byte). This means the device is now in the process of a new
conversion and the latest conversion result is not ready yet.
RDY bit becomes “1” in the 5th byte (repeated byte). This means the device is now in the process of a new
conversion and the latest conversion result is not ready yet.
Zoom-in
Data Bytes = 0101AD (hex)
Zoom-in
Configuration Byte and Repeated Configuration Byte
(a) Read command and outputs. The 3 data bytes are zoomed in for better clarity.
(b) Read command and outputs. The last two data bytes are zoomed in for better clarity.
4th Byte
5th Byte
RDY bit
RDY bit