5.1 Multiplexed Signals

Table 5-1. PORT Function Multiplexing
VQFN 24-PinVQFN 20-PinSOIC 20-PinSOIC 14-PinPin Name (1,2)Other/SpecialADC0ADC1PTC(4)AC0AC1AC2DAC0USART0SPI0TWI0TCA0TCBn TCD0CCL
23191610PA0RESET/ UPDIAIN0LUT0-IN0
24201711PA1AIN1TxD(3)MOSISDA(3)LUT0-IN1
111812PA2EVOUT0AIN2RxD(3)MISOSCL(3)LUT0-IN2
221913PA3EXTCLKAIN3XCK(3)SCKWO3TCB1 WO
332014GND
4411VDD
5522PA4AIN4AIN0X0/Y0XDIR(3)SSWO4WOALUT0-OUT
6633PA5VREFAAIN5AIN1X1/Y1OUTAINN0WO5TCB0 WOWOB
7744PA6AIN6AIN2X2/Y2AINN0AINP1AINP0OUT
8855PA7AIN7AIN3X3/Y3AINP0AINP0AINN0LUT1-OUT
9PB7AIN4AINN1AINP3
10PB6AIN5AINP3AINN1
1196PB5CLKOUTAIN8

X12/Y12

AINP1AINP2WO2(3)
12107PB4AIN9X13/Y13AINN1AINP3WO1(3)LUT0-OUT(3)
131186PB3

TOSC1

OUTRxDWO0(3)
141297PB2TOSC2, EVOUT1OUTTxDWO2
1513108PB1AIN10X4/Y4AINP2XCKSDAWO1
1614119PB0AIN11X5/Y5AINP2AINP1XDIRSCLWO0
171512PC0AIN6X6/Y6SCK(3)TCB0 WO(3)WOC
181613PC1AIN7X7/Y7MISO(3)WODLUT1-OUT(3)
191714PC2EVOUT2AIN8X8/Y8MOSI(3)
201815PC3AIN9X9/Y9SS(3)WO3(3)LUT1-IN0
21PC4AIN10X10/Y10WO4(3) TCB1 WO(3)LUT1-IN1
22NC
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.