cp2120 Silicon Laboratories, cp2120 Datasheet - Page 22

• Manufacturer Part Number: cp2120
• Description: Single Chip Spi To I2c Transfer Integrated Clock; No External Clock Required On-chip Voltage Monitor
• Manufacturer: Silicon Laboratories

CP2120
8. CP2120 Revision Number
The CP2120 revision number can be retrieved by first sending the Revision Number command byte of 0x40 and
then transmitting one “don’t care” transitional byte. The CP2120 then transmits the two-byte revision number, most
significant byte first, in BCD format. For example, a transmitted byte sequence of “0x01 0x44” would indicate that
the CP2120’s revision number is equal to 1.44.
22
SPI Master
CP2120
COMMAND
0x40
Don’t Care
Rev. 0.3
Rev Num
Byte 1
Rev Num
Byte 2