DMA Channel Allocations

DMAC should operate with dynamic, round-robin priority arbitration within a DMA priority level. Priority levels listed are from 0 (highest) to 3 (lowest.)

• Ch0: NOR flash SPI Tx empty (SERCOM5)
  
  • Priority: 12
    
  • Operate in SPI 32 bit data mode
  • Burst transfers
• Ch1: NOR flash SPI Rx complete (SERCOM5)
  • Priority: 12
  • Operate in SPI 32 bit data mode
  • Burst transfers
• Ch2: Display SPI Tx empty (SERCOM4)
  • Priority: 21
    
  • Operate in SPI 32 bit data mode
  • Burst transfers