SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
A Receive Byte message (Figure 29-4) consists of the device address, a single data byte, and an optional PEC byte. In automatic address acknowledge mode, the firmware receives a data request interrupt following reception of the target address. The data byte to be sent to the controller is stored into bits 7-0 of the PMBTXBUF register and Transmit Byte Count bits within the PMBTCR register are set to a value of 1. If PEC processing is enabled, the Transmit PEC bit (bit 19) within the PMBTCR register is set to 1, along with the Enable PEC bit (bit 15). The module automatically appends the calculated PEC byte at the completion of the message.