22.3.2.1 Configuring Single Cycle Data

Client location one is set by default and no further action is needed if a single client is used. Channel one must be configured for the protocol used, which requires the user to use the CLCHCFG bit to select between BiSS C and SSI. At this point, the actuator and sensor selection can be configured using ACTSEN. By default, this is set for sensor data.

Next, the appropriate values must be configured for the SCD and CRC. Depending on what hardware is being used as the client, there are multiple options available for SCD and CRC selections. For this example, consider a common setup where the client expects 28 bits of sensor data to be transmitted, with an error and warning bit, along with the very common 0x43 CRC polynomial which accounts for six bits.

For this BiSS module, the SCD length is considered the 28 bits with two additional bits from the warning and error bits which combined create an SCD of 30. The appropriate bits can now be setup which include, SCDLEN, CRCSEL and CRCLEN; then the module can be enabled by using SCDEN.