DMA, Interrupts and Events

Table 1. Module Request for SERCOM I2C Slave
Condition Request
DMA Interrupt Event
Data needed for transmit (TX) (Slave transmit mode) Yes

(request cleared when data is written)

  NA
Data received (RX) (Slave receive mode) Yes

(request cleared when data is read)

 
Data Ready (DRDY)   Yes
Address Match (AMATCH)   Yes
Stop received (PREC)   Yes
Error (ERROR)   Yes
Table 2. Module Request for SERCOM I2C Master
Condition Request
DMA Interrupt Event
Data needed for transmit (TX) (Master transmit mode) Yes

(request cleared when data is written)

  NA
Data needed for transmit (RX) (Master transmit mode) Yes

(request cleared when data is read)

 
Master on Bus (MB)   Yes
Stop received (SB)   Yes
Error (ERROR)   Yes