SPRUIV7B May 2022 – September 2023 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP
Channels must be triggered in order for them to perform work. A local event input bus is provided on the peripheral DMA and each bit in the input bus corresponds to the trigger for the channel with the same channel index as the bit index in the bus (bit 0 triggers channel 0, bit 1 triggers channel 1, etc.). The event inputs for XY mode are triggered either via pulse, or by a clock synchronous rising edge. The counting mode is a design time configuration parameter. In MCAN mode, the inputs are expected to be single cycle pulses, synchronous with the PDMA clock.
The PDMA provides a 2 bit counter per event input to accommodate startup latency in the channel. (In AASRC mode, the signals are not counted, but latched whenever asserted.)