31.2.2.1 CCL Input Selection MUX
The following peripherals outputs are available as inputs into the CCL LUT.
| Value | Input Source | INSEL0[3:0] | INSEL1[3:0] | INSEL2[3:0] | 
|---|---|---|---|---|
0x00 | MASK | Masked input | ||
0x01 | FEEDBACK | LUTn | ||
0x02 | LINK | LUT[n+1] | ||
0x03 | EVENTA | EVENTA | ||
0x04 | EVENTB | EVENTB | ||
0x05 | INn | LUTn-IN0 | LUTn-IN1 | LUTn-IN2 | 
0x06 | ACn | AC0 OUT | AC1 OUT | AC2 OUT | 
0x07 | ZCDn | ZCD0 OUT | ZCD1 OUT | ZCD2 OUT | 
0x08 | USARTn(1) | USART0 TXD | USART1 TXD | USART2 TXD | 
0x09 | SPI0(2) | SPI0 MOSI | SPI0 MOSI | SPI0 SCK | 
0x0A | TCA0 | WO0 | WO1 | WO2 | 
0x0B | TCA1 | WO0 | WO1 | WO2 | 
0x0C | TCBn | TCB0 WO | TCB1 WO | TCB2 WO | 
0x0D | TCD0 | WOA | WOB | WOC | 
Note: 
                                                  
                                                  - USART connections to the CCL work only in asynchronous/synchronous USART host mode.
 - SPI connections to the CCL work only in SPI host mode.
 
