Matrix Orbital PK162-12 - Manual (Page 39)

Parameters Parameter Length Description
flags 1 Flags to control optional
components of the transaction.
SndBits 1 The number of bits you will be
transmitting on the bus.
RcvBits 1 The number of bits you will be
reading on the bus.
Data variable Data to be transmitted, LSB to
MSB.
Description This command will perform a single transaction on the 1-wire bus in this
order:
1. Bus Reset.
2. Transmit data onto the bus.
3. Receive data from the bus.
The number of bits to be transmitted and read must be specified for this
command to be successful.
NOTE To determine what functions the device will respond to, consult the devices’ data
sheet.
1-Wire Flags
Bit Description
7
6
Unused
5 (0 for future compatibility)
4
3
Add a CRC8 to the end of the transmitted data
2 (0 for future compatibility)
1 Assume last received byte is a CRC8 and validate it
0 Reset bus before transaction
1-Wire Error Codes
Code Description
0x00 Success
0x01 Unknown 1-Wire Command
0x02 No devices on the bus
0x03 Fatal search error
Remembered No
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