35.7.4.4 DMA and Interrupts

Table 35-27. Module Request for SERCOM SPI
ConditionRequest

DMA

Interrupt
Standard (DRE): Data Register Empty

FIFO (DRE): at least TXTRHOLD locations in TX FIFO are empty

Yes

(request cleared when data is written)

Yes
Standard (RXC): Receive Complete

FIFO (RXC): at least RXTRHOLD data available in RX FIFO, or a last word available and length frame reception completed.

Yes

(request cleared when data is read)

Yes
Standard (TXC): Transmit Complete

FIFO (TXC): Transmit Complete and TX FIFO is empty

NAYes
Client Select low (SSL)NAYes
Error (ERROR)NAYes