SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
Multibuffer mode is selected when the MBUFMODE bit in SCIGCR1 is set to 1. Like single-buffer mode, you can use the polling, DMA, or interrupt method to write the data to be transmitted. The transmitted data has to be written to the SCITD registers. The SCI waits for data to be written to the SCITD register and then transfers the programmed number of bytes to SCITXSHF to transmit one by one automatically.