5.1 Multiplexed Signals

Table 5-1. PORT Function Multiplexing
VQFN 20-PinSOIC 20-PinPin Name (1,2)Other/SpecialADC0ADC1PTC(4)AC0AC1AC2DAC0USART0SPI0TWI0TCA0TCBn TCD0CCL
1916PA0RESET/ UPDIAIN0LUT0-IN0
2017PA1AIN1TxD(3)MOSISDA(3)LUT0-IN1
118PA2EVOUT0AIN2RxD(3)MISOSCL(3)LUT0-IN2
219PA3EXTCLKAIN3XCK(3)SCKWO3TCB1 WO
320GND
41VDD
52PA4AIN4AIN0X0/Y0XDIR(3)SSWO4WOALUT0-OUT
63PA5VREFAAIN5AIN1X1/Y1OUTAINN0WO5TCB0 WOWOB
74PA6AIN6AIN2X2/Y2AINN0AINP1AINP0OUT
85PA7AIN7AIN3X3/Y3AINP0AINP0AINN0LUT1-OUT
96PB5CLKOUTAIN8

X12/Y12

AINP1AINP2WO2(3)
107PB4AIN9X13/Y13AINN1AINP3WO1(3)LUT0-OUT(3)
118PB3

TOSC1

OUTRxDWO0(3)
129PB2TOSC2, EVOUT1OUTTxDWO2
1310PB1AIN10X4/Y4AINP2XCKSDAWO1
1411PB0AIN11X5/Y5AINP2AINP1XDIRSCLWO0
1512PC0AIN6X6/Y6SCK(3)TCB0 WO(3)WOC
1613PC1AIN7X7/Y7MISO(3)WODLUT1-OUT(3)
1714PC2EVOUT2AIN8X8/Y8MOSI(3)
1815PC3AIN9X9/Y9SS(3)WO3(3)LUT1-IN0
Note:
  1. Pin names are of type Pxn, with x being the PORT instance (A, B) and n the pin number. Notation for signals is PORTx_PINn. All pins can be used as event input.
  2. All pins can be used for external interrupt, where pins Px2 and Px6 of each port have full asynchronous detection.
  3. Alternate pin positions. For selecting the alternate positions, refer to the PORTMUX documentation.
  4. Every PTC line can be configured as X- or Y-line.