6.1 Multiplexed Signals

By default each pin is controlled by the PORT as a general purpose I/O, and alternatively it can be assigned to one of the peripheral functions: A, B, C, D, E, F, G, H, I, J, K, L, M or N. To enable a peripheral function on a pin, the Peripheral Multiplexer Enable bit in the Pin Configuration register corresponding to that pin (PINCFGn.PMUXEN, n = 0-31) in the PORT must be written to '1'. The selection of peripheral functions, A to N, is done by writing to the Peripheral Multiplexing Odd and Even bits in the Peripheral Multiplexing register (PMUXn.PMUXE/O) of the PORT. The table below describes the peripheral signals multiplexed to the PORT I/O pins.

Important: Not all signals are available on all devices. Refer to the Configuration Summary for available peripherals.

Table 6-1. Multiplexed Peripheral Signals
VQFN 48	TQFP/VQFN/WLCSP 64	TQFP 100	TFBGA 120	TQFP 128	Pad Name	A	B						C	D	E	F	G	H	I	J	K	L	M	N
VQFN 48	TQFP/VQFN/WLCSP 64	TQFP 100	TFBGA 120	TQFP 128	Pad Name	EIC	ANAREF	ADC0	ADC1	AC	DAC	PTC	SERCOM	SERCOM	TC	TCC	TCC, PDEC	QSPI, CAN1, USB, CORTEX_CM4	SDHC, CAN0	I²S	PCC	GMAC	GCLK, AC	CCL
48	64/C6	100	B2	128	PB03	EIC/EXTINT[3]	-	ADC0/AIN[15]	-	-	-	X21/Y21	-	SERCOM5/PAD[1]	TC6/WO[1]	-	-	-	-	-	-	-	-	-
1	01/B8	1	A1	1	PA00	EIC/EXTINT[0]	-	-	-	-	-		-	SERCOM1/PAD[0]	TC2/WO[0]	-	-	-	-	-	-	-	-	-
2	02/C8	2	B1	2	PA01	EIC/EXTINT[1]	-	-	-	-	-		-	SERCOM1/PAD[1]	TC2/WO[1]	-	-	-	-	-	-	-	-	-
		3	C1	3	PC00	EIC/EXTINT[0]	-	-	ADC1/AIN[10]	-	-		-	-	-	-	-	-	-	-	-	-	-	-
		4	C2	4	PC01	EIC/EXTINT[1]	-	-	ADC1/AIN[11]	-	-		-	-	-	-	-	-	-	-	-	-	-	-
		5	D1	7	PC02	EIC/EXTINT[2]	-	-	ADC1/AIN[4]	-	-		-	-	-	-	-	-	-	-	-	-	-	-
		6	E2	8	PC03	EIC/EXTINT[3]	-	-	ADC1/AIN[5]	-	-		-	-	-	-	-	-	-	-	-	-	-	-
3	03/C7	7	E1	9	PA02	EIC/EXTINT[2]	-	ADC0/AIN[0]	-	-	DAC/VOUT[0]		-	-	-	-	-	-	-	-	-	-	-	-
4	04/D6	8	F2	10	PA03	EIC/EXTINT[3]	ANAREF/VREFA	ADC0/AIN[1]	-	-	-	X0/Y0	-	-	-	-	-	-	-	-	-	-	-	-
	05/D7	9	F1	11	PB04	EIC/EXTINT[4]	-	-	ADC1/AIN[6]	-	-	X22/Y22	-	-	-	-	-	-	-	-	-	-	-	-
	06/D8	10	G1	12	PB05	EIC/EXTINT[5]	-	-	ADC1/AIN[7]	-	-	X23/Y23	-	-	-	-	-	-	-	-	-	-	-	-
		-	G2	13	PD00	EIC/EXTINT[0]	-	-	ADC1/AIN[14]	-	-		-	-	-	-	-	-	-	-	-	-	-	-
		-	H1	16	PD01	EIC/EXTINT[1]	-	-	ADC1/AIN[15]	-	-		-	-	-	-	-	-	-	-	-	-	-	-
	09/E7	13	H2	17	PB06	EIC/EXTINT[6]	-	-	ADC1/AIN[8]	-	-	X24/Y24	-	-	-	-	-	-	-	-	-	-	-	CCL/IN[6]
	10/E6	14	J1	18	PB07	EIC/EXTINT[7]	-	-	ADC1/AIN[9]	-	-	X25/Y25	-	-	-	-	-	-	-	-	-	-	-	CCL/IN[7]
7	11/F5	15	J2	19	PB08	EIC/EXTINT[8]	-	ADC0/AIN[2]	ADC1/AIN[0]	-	-	X1/Y1	-	SERCOM4/PAD[0]	TC4/WO[0]	-	-	-	-	-	-	-	-	CCL/IN[8]
8	12/F8	16	K1	20	PB09	EIC/EXTINT[9]	-	ADC0/AIN[3]	ADC1/AIN[1]	-	-	X2/Y2	-	SERCOM4/PAD[1]	TC4/WO[1]	-	-	-	-	-	-	-	-	CCL/OUT[2]
9	13/F7	17	K2	21	PA04	EIC/EXTINT[4]	ANAREF/VREFB	ADC0/AIN[4]	-	AC/AIN[0]	-	X3/Y3	-	SERCOM0/PAD[0]	TC0/WO[0]	-	-	-	-	-	-	-	-	CCL/IN[0]
10	14/F6	18	L1	22	PA05	EIC/EXTINT[5]	-	ADC0/AIN[5]	-	AC/AIN[1]	DAC/VOUT[1]		-	SERCOM0/PAD[1]	TC0/WO[1]	-	-	-	-	-	-	-	-	CCL/IN[1]
11	15/G7	19	L2	23	PA06	EIC/EXTINT[6]	ANAREF/VREFC	ADC0/AIN[6]	-	AC/AIN[2]	-	X4/Y4	-	SERCOM0/PAD[2]	TC1/WO[0]	-	-	-	SDHC0/SDCD	-	-	-	-	CCL/IN[2]
12	16/G8	20	M1	24	PA07	EIC/EXTINT[7]	-	ADC0/AIN[7]	-	AC/AIN[3]	-	X5/Y5	-	SERCOM0/PAD[3]	TC1/WO[1]	-	-	-	SDHC0/SDWP	-	-	-	-	CCL/OUT[0]
		-	N1	27	PC04	EIC/EXTINT[4]	-	-	-	-	-		SERCOM6/PAD[0]	-	-	TCC0/WO[0]	-	-	-	-	-	-	-	-
		21	N2	28	PC05	EIC/EXTINT[5]	-	-	-	-	-		SERCOM6/PAD[1]	-	-	-	-	-	-	-	-	-	-	-
		22	P1	29	PC06	EIC/EXTINT[6]	-	-	-	-	-		SERCOM6/PAD[2]	-	-	-	-	-	SDHC0/SDCD	-	-	-	-	-
		23	P2	30	PC07	EIC/EXTINT[9]	-	-	-	-	-		SERCOM6/PAD[3]	-	-	-	-	-	SDHC0/SDWP	-	-	-	-	-
13	17/H8	26	R1	33	PA08	EIC/NMI	-	ADC0/AIN[8]	ADC1/AIN[2]	-	-	X6/Y6	SERCOM0/PAD[0]	SERCOM2/PAD[1]	TC0/WO[0]	TCC0/WO[0]	TCC1/WO[4]	QSPI/DATA[0]	SDHC0/SDCMD	I²S/MCK[0]	-	-	-	CCL/IN[3]
14	18/G6	27	P3	34	PA09	EIC/EXTINT[9]	-	ADC0/AIN[9]	ADC1/AIN[3]	-	-	X7/Y7	SERCOM0/PAD[1]	SERCOM2/PAD[0]	TC0/WO[1]	TCC0/WO[1]	TCC1/WO[5]	QSPI/DATA[1]	SDHC0/SDDAT[0]	I²S/FS[0]	-	-	-	CCL/IN[4]
15	19/H7	28	R2	35	PA10	EIC/EXTINT[10]	-	ADC0/AIN[10]	-	-	-	X8/Y8	SERCOM0/PAD[2]	SERCOM2/PAD[2]	TC1/WO[0]	TCC0/WO[2]	TCC1/WO[6]	QSPI/DATA[2]	SDHC0/SDDAT[1]	I²S/SCK[0]	-	-	GCLK/IO[4]	CCL/IN[5]
16	20/G5	29	P4	36	PA11	EIC/EXTINT[11]	-	ADC0/AIN[11]	-	-	-	X9/Y9	SERCOM0/PAD[3]	SERCOM2/PAD[3]	TC1/WO[1]	TCC0/WO[3]	TCC1/WO[7]	QSPI/DATA[3]	SDHC0/SDDAT[2]	I²S/SDO	-	-	GCLK/IO[5]	CCL/OUT[1]
19	23/H6	32	R3	39	PB10	EIC/EXTINT[10]	-	-	-	-	-		-	SERCOM4/PAD[2]	TC5/WO[0]	TCC0/WO[4]	TCC1/WO[0]	QSPI/SCK	SDHC0/SDDAT[3]	I²S/SDI	-	-	GCLK/IO[4]	CCL/IN[11]
20	24/G4	33	P5	40	PB11	EIC/EXTINT[11]	-	-	-	-	-		-	SERCOM4/PAD[3]	TC5/WO[1]	TCC0/WO[5]	TCC1/WO[1]	QSPI/CS	SDHC0/SDCK	I²S/FS[1]	-	-	GCLK/IO[5]	CCL/OUT[1]
	25/H5	34	R4	41	PB12	EIC/EXTINT[12]	-	-	-	-	-	X26/Y26	SERCOM4/PAD[0]	-	TC4/WO[0]	TCC3/WO[0]	TCC0/WO[0]	CAN1/TX	SDHC0/SDCD	I²S/SCK[1]	-	-	GCLK/IO[6]	-
	26/H4	35	P6	42	PB13	EIC/EXTINT[13]	-	-	-	-	-	X27/Y27	SERCOM4/PAD[1]	-	TC4/WO[1]	TCC3/WO[1]	TCC0/WO[1]	CAN1/RX	SDHC0/SDWP	I²S/MCK[1]	-	-	GCLK/IO[7]	-
	27/G3	36	R5	43	PB14	EIC/EXTINT[14]	-	-	-	-	-	X28/Y28	SERCOM4/PAD[2]	-	TC5/WO[0]	TCC4/WO[0]	TCC0/WO[2]	CAN1/TX	-	-	PCC/DATA[8]	GMAC/GMDC	GCLK/IO[0]	CCL/IN[9]
	28/H3	37	P7	44	PB15	EIC/EXTINT[15]	-	-	-	-	-	X29/Y29	SERCOM4/PAD[3]	-	TC5/WO[1]	TCC4/WO[1]	TCC0/WO[3]	CAN1/RX	-	-	PCC/DATA[9]	GMAC/GMDIO	GCLK/IO[1]	CCL/IN[10]
		-	R6	47	PD08	EIC/EXTINT[3]	-	-	-	-	-		SERCOM7/PAD[0]	SERCOM6/PAD[1]	-	TCC0/WO[1]	-	-	-	-	-	-	-	-
		-	P8	48	PD09	EIC/EXTINT[4]	-	-	-	-	-		SERCOM7/PAD[1]	SERCOM6/PAD[0]	-	TCC0/WO[2]	-	-	-	-	-	-	-	-
		-	R7	49	PD10	EIC/EXTINT[5]	-	-	-	-	-		SERCOM7/PAD[2]	SERCOM6/PAD[2]	-	TCC0/WO[3]	-	-	-	-	-	-	-	-
		-	P9	50	PD11	EIC/EXTINT[6]	-	-	-	-	-		SERCOM7/PAD[3]	SERCOM6/PAD[3]	-	TCC0/WO[4]	-	-	-	-	-	-	-	-
		-	R8	51	PD12	EIC/EXTINT[7]	-	-	-	-	-		-	-	-	TCC0/WO[5]	-	-	-	-	-	-	-	-
		40	P10	52	PC10	EIC/EXTINT[10]	-	-	-	-	-		SERCOM6/PAD[2]	SERCOM7/PAD[2]	-	TCC0/WO[0]	TCC1/WO[4]	-	-	-	-	-	-	-
		41	R9	55	PC11	EIC/EXTINT[11]	-	-	-	-	-		SERCOM6/PAD[3]	SERCOM7/PAD[3]	-	TCC0/WO[1]	TCC1/WO[5]	-	-	-	-	GMAC/GMDC	-	-
		42	R10	56	PC12	EIC/EXTINT[12]	-	-	-	-	-		SERCOM7/PAD[0]	SERCOM6/PAD[1]	-	TCC0/WO[2]	TCC1/WO[6]	-	-	-	PCC/DATA[10]	GMAC/GMDIO	-	-
		43	P11	57	PC13	EIC/EXTINT[13]	-	-	-	-	-		SERCOM7/PAD[1]	SERCOM6/PAD[0]	-	TCC0/WO[3]	TCC1/WO[7]	-	-	-	PCC/DATA[11]	-	-	-
		44	R11	58	PC14	EIC/EXTINT[14]	-	-	-	-	-		SERCOM7/PAD[2]	SERCOM6/PAD[2]	-	TCC0/WO[4]	TCC1/WO[0]	-	-	-	PCC/DATA[12]	GMAC/GRX[3]	-	-
		45	P12	59	PC15	EIC/EXTINT[15]	-	-	-	-	-		SERCOM7/PAD[3]	SERCOM6/PAD[3]	-	TCC0/WO[5]	TCC1/WO[1]	-	-	-	PCC/DATA[13]	GMAC/GRX[2]	-	-
21	29/F2	46	R12	60	PA12	EIC/EXTINT[12]	-	-	-	-	-		SERCOM2/PAD[0]	SERCOM4/PAD[1]	TC2/WO[0]	TCC0/WO[6]	TCC1/WO[2]	-	SDHC0/SDCD	-	PCC/DEN1	GMAC/GRX[1]	AC/CMP[0]	-
22	30/G2	47	P13	61	PA13	EIC/EXTINT[13]	-	-	-	-	-		SERCOM2/PAD[1]	SERCOM4/PAD[0]	TC2/WO[1]	TCC0/WO[7]	TCC1/WO[3]	-	SDHC0/SDWP	-	PCC/DEN2	GMAC/GRX[0]	AC/CMP[1]	-
23	31/H1	48	R13	62	PA14	EIC/EXTINT[14]	-	-	-	-	-		SERCOM2/PAD[2]	SERCOM4/PAD[2]	TC3/WO[0]	TCC2/WO[0]	TCC1/WO[2]	-	-	-	PCC/CLK	GMAC/GTXCK	GCLK/IO[0]	-
24	32/H2	49	R14	63	PA15	EIC/EXTINT[15]	-	-	-	-	-		SERCOM2/PAD[3]	SERCOM4/PAD[3]	TC3/WO[1]	TCC2/WO[1]	TCC1/WO[3]	-	-	-	-	GMAC/GRXER	GCLK/IO[1]	-
25	35/G1	52	R15	66	PA16	EIC/EXTINT[0]	-	-	-	-	-	X10/Y10	SERCOM1/PAD[0]	SERCOM3/PAD[1]	TC2/WO[0]	TCC1/WO[0]	TCC0/WO[4]	-	-	-	PCC/DATA[0]	GMAC/GCRS/GRXDV⁽⁶⁾	GCLK/IO[2]	CCL/IN[0]
26	36/F1	53	P14	67	PA17	EIC/EXTINT[1]	-	-	-	-	-	X11/Y11	SERCOM1/PAD[1]	SERCOM3/PAD[0]	TC2/WO[1]	TCC1/WO[1]	TCC0/WO[5]	-	-	-	PCC/DATA[1]	GMAC/GTXEN	GCLK/IO[3]	CCL/IN[1]
27	37/E1	54	P15	68	PA18	EIC/EXTINT[2]	-	-	-	-	-	X12/Y12	SERCOM1/PAD[2]	SERCOM3/PAD[2]	TC3/WO[0]	TCC1/WO[2]	TCC0/WO[6]	-	-	-	PCC/DATA[2]	GMAC/GTX[0]	AC/CMP[0]	CCL/IN[2]
28	38/E2	55	N14	69	PA19	EIC/EXTINT[3]	-	-	-	-	-	X13/Y13	SERCOM1/PAD[3]	SERCOM3/PAD[3]	TC3/WO[1]	TCC1/WO[3]	TCC0/WO[7]	-	-	-	PCC/DATA[3]	GMAC/GTX[1]	AC/CMP[1]	CCL/OUT[0]
		56	N15	70	PC16	EIC/EXTINT[0]	-	-	-	-	-		SERCOM6/PAD[0]	SERCOM0/PAD[1]	-	TCC0/WO[0]	PDEC/PDEC[0]	-	-	-	-	GMAC/GTX[2]	-	-
		57	M14	71	PC17	EIC/EXTINT[1]	-	-	-	-	-		SERCOM6/PAD[1]	SERCOM0/PAD[0]	-	TCC0/WO[1]	PDEC/PDEC[1]	-	-	-	-	GMAC/GTX[3]	-	-
		58	M15	72	PC18	EIC/EXTINT[2]	-	-	-	-	-		SERCOM6/PAD[2]	SERCOM0/PAD[2]	-	TCC0/WO[2]	PDEC/PDEC[2]	-	-	-	-	GMAC/GRXCK	-	-
		59	L14	73	PC19	EIC/EXTINT[3]	-	-	-	-	-		SERCOM6/PAD[3]	SERCOM0/PAD[3]	-	TCC0/WO[3]	-	-	-	-	-	GMAC/GTXER	-	-
		60	L15	74	PC20	EIC/EXTINT[4]	-	-	-	-	-		-	-	-	TCC0/WO[4]	-	-	SDHC1/SDCD	-	-	GMAC/GRXDV	-	CCL/IN[9]
		61	K14	75	PC21	EIC/EXTINT[5]	-	-	-	-	-		-	-	-	TCC0/WO[5]	-	-	SDHC1/SDWP	-	-	GMAC/GCOL	-	CCL/IN[10]
		-	K15	76	PC22	EIC/EXTINT[6]	-	-	-	-	-		SERCOM1/PAD[0]	SERCOM3/PAD[1]	-	TCC0/WO[6]	-	-	-	-	-	GMAC/GMDC	-	-
		-	J14	77	PC23	EIC/EXTINT[7]	-	-	-	-	-		SERCOM1/PAD[1]	SERCOM3/PAD[0]	-	TCC0/WO[7]	-	-	-	-	-	GMAC/GMDIO	-	-
		-	J15	80	PD20	EIC/EXTINT[10]	-	-	-	-	-		SERCOM1/PAD[2]	SERCOM3/PAD[2]	-	TCC1/WO[0]	-	-	SDHC1/SDCD	-	-	-	-	-
		-	H14	81	PD21	EIC/EXTINT[11]	-	-	-	-	-		SERCOM1/PAD[3]	SERCOM3/PAD[3]	-	TCC1/WO[1]	-	-	SDHC1/SDWP	-	-	-	-	-
	39/D4	64	H15	82	PB16	EIC/EXTINT[0]	-	-	-	-	-		SERCOM5/PAD[0]	-	TC6/WO[0]	TCC3/WO[0]	TCC0/WO[4]	-	SDHC1/SDCD	I²S/SCK[0]	-	-	GCLK/IO[2]	CCL/IN[11]
	40/D1	65	G15	83	PB17	EIC/EXTINT[1]	-	-	-	-	-		SERCOM5/PAD[1]	-	TC6/WO[1]	TCC3/WO[1]	TCC0/WO[5]	-	SDHC1/SDWP	I²S/MCK[0]	-	-	GCLK/IO[3]	CCL/OUT[3]
		66	G14	84	PB18	EIC/EXTINT[2]	-	-	-	-	-		SERCOM5/PAD[2]	SERCOM7/PAD[2]	-	TCC1/WO[0]	PDEC/PDEC[0]	-	SDHC1/SDDAT[0]	-	-	-	GCLK/IO[4]	-
		67	F15	85	PB19	EIC/EXTINT[3]	-	-	-	-	-		SERCOM5/PAD[3]	SERCOM7/PAD[3]	-	TCC1/WO[1]	PDEC/PDEC[1]	-	SDHC1/SDDAT[1]	-	-	-	GCLK/IO[5]	-
		68	F14	86	PB20	EIC/EXTINT[4]	-	-	-	-	-		SERCOM3/PAD[0]	SERCOM7/PAD[1]	-	TCC1/WO[2]	PDEC/PDEC[2]	-	SDHC1/SDDAT[2]	-	-	-	GCLK/IO[6]	-
		69	E15	87	PB21	EIC/EXTINT[5]	-	-	-	-	-		SERCOM3/PAD[1]	SERCOM7/PAD[0]	-	TCC1/WO[3]	-	-	SDHC1/SDDAT[3]	-	-	-	GCLK/IO[7]	-
29	41/D2	70	E14	88	PA20	EIC/EXTINT[4]	-	-	-	-	-	X14/Y14	SERCOM5/PAD[2]	SERCOM3/PAD[2]	TC7/WO[0]	TCC1/WO[4]	TCC0/WO[0]	-	SDHC1/SDCMD	I²S/FS[0]	PCC/DATA[4]	GMAC/GMDC	-	-
30	42/D3	71	D15	89	PA21	EIC/EXTINT[5]	-	-	-	-	-	X15/Y15	SERCOM5/PAD[3]	SERCOM3/PAD[3]	TC7/WO[1]	TCC1/WO[5]	TCC0/WO[1]	-	SDHC1/SDCK	I²S/SDO	PCC/DATA[5]	GMAC/GMDIO	-	-
31	43/C1	72	D14	92	PA22	EIC/EXTINT[6]	-	-	-	-	-	X16/Y16	SERCOM3/PAD[0]	SERCOM5/PAD[1]	TC4/WO[0]	TCC1/WO[6]	TCC0/WO[2]	-	CAN0/TX	I²S/SDI	PCC/DATA[6]	-	-	CCL/IN[6]
32	44/C2	73	C14	93	PA23	EIC/EXTINT[7]	-	-	-	-	-	X17/Y17	SERCOM3/PAD[1]	SERCOM5/PAD[0]	TC4/WO[1]	TCC1/WO[7]	TCC0/WO[3]	USB/SOF_1KHZ	CAN0/RX	I²S/FS[1]	PCC/DATA[7]	-	-	CCL/IN[7]
33	45/B1	74	C15	94	PA24	EIC/EXTINT[8]	-	-	-	-	-		SERCOM3/PAD[2]	SERCOM5/PAD[2]	TC5/WO[0]	TCC2/WO[2]	PDEC/PDEC[0]	USB/DM	CAN0/TX	-	-	-	-	CCL/IN[8]
34	46/A1	75	B15	95	PA25	EIC/EXTINT[9]	-	-	-	-	-		SERCOM3/PAD[3]	SERCOM5/PAD[3]	TC5/WO[1]	-	PDEC/PDEC[1]	USB/DP	CAN0/RX	-	-	-	-	CCL/OUT[2]
37	49/A2	78	A15	98	PB22	EIC/EXTINT[6]	-	-	-	-	-		SERCOM1/PAD[2]	SERCOM5/PAD[2]	TC7/WO[0]	-	PDEC/PDEC[2]	USB/SOF_1KHZ	-	-	-	-	GCLK/IO[0]	CCL/IN[0]
38	50/A3	79	A14	99	PB23	EIC/EXTINT[7]	-	-	-	-	-		SERCOM1/PAD[3]	SERCOM5/PAD[3]	TC7/WO[1]	-	PDEC/PDEC[0]	-	-	-	-	-	GCLK/IO[1]	CCL/OUT[0]
		80	B14	100	PB24	EIC/EXTINT[8]	-	-	-	-	-		SERCOM0/PAD[0]	SERCOM2/PAD[1]	-	-	PDEC/PDEC[1]	-	-	-	-	-	AC/CMP[0]	-
		81	B13	101	PB25	EIC/EXTINT[9]	-	-	-	-	-		SERCOM0/PAD[1]	SERCOM2/PAD[0]	-	-	PDEC/PDEC[2]	-	-	-	-	-	AC/CMP[1]	-
		-	A13	102	PB26	EIC/EXTINT[12]	-	-	-	-	-		SERCOM2/PAD[0]	SERCOM4/PAD[1]	-	TCC1/WO[2]	-	-	-	-	-	-	-	-
		-	B12	103	PB27	EIC/EXTINT[13]	-	-	-	-	-		SERCOM2/PAD[1]	SERCOM4/PAD[0]	-	TCC1/WO[3]	-	-	-	-	-	-	-	-
		-	A12	104	PB28	EIC/EXTINT[14]	-	-	-	-	-		SERCOM2/PAD[2]	SERCOM4/PAD[2]	-	TCC1/WO[4]	-	-	-	I²S/SCK[1]	-	-	-	-
		-	B11	105	PB29	EIC/EXTINT[15]	-	-	-	-	-		SERCOM2/PAD[3]	SERCOM4/PAD[3]	-	TCC1/WO[5]	-	-	-	I²S/MCK[1]	-	-	-	-
		82	A11	108	PC24	EIC/EXTINT[8]	-	-	-	-	-		SERCOM0/PAD[2]	SERCOM2/PAD[2]	-	-	-	CORTEX_CM4/TRACEDATA[3]	-	-	-	-	-	-
		83	B10	109	PC25	EIC/EXTINT[9]	-	-	-	-	-		SERCOM0/PAD[3]	SERCOM2/PAD[3]	-	-	-	CORTEX_CM4/TRACEDATA[2]	-	-	-	-	-	-
		84	A10	110	PC26	EIC/EXTINT[10]	-	-	-	-	-		-	-	-	-	-	CORTEX_CM4/TRACEDATA[1]	-	-	-	-	-	-
		85	A9	111	PC27	EIC/EXTINT[11]	-	-	-	-	-		SERCOM1/PAD[0]	-	-	-	-	CORTEX_CM4/TRACECLK	-	-	-	-	CORTEX_M4/SWO	CCL/IN[4]
		86	B9	112	PC28	EIC/EXTINT[12]	-	-	-	-	-		SERCOM1/PAD[1]	-	-	-	-	CORTEX_CM4/TRACEDATA[0]	-	-	-	-	-	CCL/IN[5]
39	51/B3	87	B8	113	PA27	EIC/EXTINT[11]	-	-	-	-	-	X18/Y18	-	-	-	-	-		-	-	-	-	GCLK/IO[1]	-
40	52/B4	88	A8	114	RESET_N	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-
45	57/C5	93	B7	119	PA30	EIC/EXTINT[14]	-	-	-	-	-	X19/Y19	SERCOM7/PAD[2]	SERCOM1/PAD[2]	TC6/WO[0]	TCC2/WO[0]	-	CORTEX_CM4/SWCLK	-	-	-	-	GCLK/IO[0]	CCL/IN[3]
46	58/D5	94	B6	120	PA31	EIC/EXTINT[15]	-	-	-	-	-		SERCOM7/PAD[3]	SERCOM1/PAD[3]	TC6/WO[1]	TCC2/WO[1]	-	CORTEX_CM4/SWDIO-	-	-	-	-	-	CCL/OUT[1]
	59/A6	95	A5	121	PB30	EIC/EXTINT[14]	-	-	-	-	-		SERCOM7/PAD[0]	SERCOM5/PAD[1]	TC0/WO[0]	TCC4/WO[0]	TCC0/WO[6]	CORTEX_CM4/SWO	-	-	-	-	-	-
	60/B6	96	B5	122	PB31	EIC/EXTINT[15]	-	-	-	-	-		SERCOM7/PAD[1]	SERCOM5/PAD[0]	TC0/WO[1]	TCC4/WO[1]	TCC0/WO[7]		-	-	-	-	-	-
		-	A4	123	PC30	EIC/EXTINT[14]	-	-	ADC1/AIN[12]	-	-		-	-	-	-	-	-	-	-	-	-	-	-
		-	B4	124	PC31	EIC/EXTINT[15]	-	-	ADC1/AIN[13]	-	-		-	-	-	-	-	-	-	-	-	-	-	-
	61/A7	97	A3	125	PB00	EIC/EXTINT[0]	-	ADC0/AIN[12]	-	-	-	X30/Y30	-	SERCOM5/PAD[2]	TC7/WO[0]	-	-	-	-	-	-	-	-	CCL/IN[1]
	62/B7	98	B3	126	PB01	EIC/EXTINT[1]	-	ADC0/AIN[13]	-	-	-	X31/Y31	-	SERCOM5/PAD[3]	TC7/WO[1]	-	-	-	-	-	-	-	-	CCL/IN[2]
47	63/A8	99	A2	127	PB02	EIC/EXTINT[2]	-	ADC0/AIN[14]	-	-	-	X20/Y20	-	SERCOM5/PAD[0]	TC6/WO[0]	TCC2/WO[2]	-	-	-	-	-	-	-	CCL/OUT[0]

Note:

All analog pin functions are on the peripheral function B. The peripheral function B must be selected to disable the digital control of the pin. The AC has analog signals on the peripheral function B and digital signals on the peripheral function M.
The pins used by the SERCOM in I²C mode are listed in section SERCOM I²C Configurations.
The following High Sink pins have different properties than the regular pins:
PA08, PA09, PA12, PA13, PA16, PA17, PA22, PA23, PD08, PD09.
Clusters of multiple GPIO pins are sharing the same supply pin.
When TRACE is used in single-wire debug mode, PC27 assumes the role of SWO. In other debug modes, PB30 assumes the SWO functionality.
GRXDV is available on PA16 for the 64-pin package only.

Important: Not all signals are available on all devices. Refer to the Configuration Summary for available peripherals.