6 Signal Description

Table 6-1. AC Signal Descriptions
PIN NAME	PIN NUMBER			I/O Set	PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	I/O Set	PIN TYPE	FUNCTION TYPE	DESCRIPTION
AC_AIN0	21	14	10	—	I	Analog	Comparator 0 & 1 external analog inputs
AC_AIN1	22	15	11	—	I	Analog
AC_AIN2	26	17	13	—	I	Analog
AC_AIN3	39	26	21	—	I	Analog
AC_CMP0	3	2	2	1	O	Analog	Comparator 0 Output
AC_CMP0	18	13	—	2	O	Analog	Comparator 0 Output
AC_CMP1	5	3	3	1	O	Analog	Comparator 1 Output
AC_CMP1	27	18	—	2	O	Analog	Comparator 1 Output

Table 6-2. ADC Signal Descriptions
PIN NAME	PIN NUMBER			PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	PIN TYPE	FUNCTION TYPE	DESCRIPTION
ADC_VINP0	14	7	4	I	Analog	ADC Module 0 analog inputs
ADC_VINP1	15	8	5	I	Analog
ADC_VINP2	16	11	8	I	Analog
ADC_VINP3	17	12	9	I	Analog
ADC_VINP4	21	14	10	I	Analog
ADC_VINP5	22	15	11	I	Analog
ADC_VINP6	23	16	12	I	Analog
ADC_VINP7	26	17	13	I	Analog
ADC_VINP8	39	26	21	I	Analog
ADC_VINP9	40	27	22	I	Analog
ADC_VINP10	41	28	23	I	Analog
ADC_VINP11	44	31	17	I	Analog
ADC_VINM0	15	8	5	I	Analog
ADC_VINM2	17	12	9	I	Analog
ADC_VINM4	22	15	11	I	Analog
ADC_VREFH	23	16	12	I	Analog

Table 6-3. Programming-Debugging Signal Descriptions
PIN NAME	PIN NUMBER			PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	PIN TYPE	FUNCTION TYPE	DESCRIPTION
TCK_SWCLK	75	48	36	I	ST	Debug Serial Wire Input Clock
TDI	73	46	34	I	ST	Debug/Scan JTAG Data Input
TDO	72	45	33	O	CMOS	Debug/Scan JTAG Data Out
TMS_SWDIO	74	47	35	O	CMOS	Debug Serial Wire Data In/Out
RESET	67	42	30	I	ST	MCU Reset input (Active Low)

Table 6-4. CAN Signal Descriptions
PIN NAME	PIN NUMBER			I/O Set	PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	I/O Set	PIN TYPE	FUNCTION TYPE	DESCRIPTION
CAN0_RX	8	4	—	3	I	ST	CAN0_FD Receive
CAN0_RX	54	34	26	1
CAN0_RX	93	—	—	2
CAN0_TX	9	5	—	3	O	CMOS	CAN0_FD Transmit
CAN0_TX	58	37	27	1
CAN0_TX	98	63	—	2
CAN1_RX	1	1	1	2	I	ST	CAN1_FD Receive
CAN1_RX	72	45	33	1
CAN1_RX	88	55	—	3
CAN1_TX	3	2	2	2	O	CMOS	CAN1_FD Transmit
CAN1_TX	73	46	34	1
CAN1_TX	90	56	—	3

Table 6-5. CCL Signal Descriptions
PIN NAME	PIN NUMBER			IO Set	PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	IO Set	PIN TYPE	FUNCTION TYPE	DESCRIPTION
CCL0_IN0	53	—	—	2	I	Digital Input	CCL0 Lookup Table Input 0
CCL0_IN0	54	34	26	1	I	Digital Input	CCL0 Lookup Table Input 0
CCL0_IN1	58	37	27	1	I	Digital Input	CCL0 Lookup Table Input 1
CCL0_IN1	59	—	—	2	I	Digital Input	CCL0 Lookup Table Input 1
CCL0_IN10	38	—	—	2	I	Digital Input	CCL0 Lookup Table Input 2
CCL0_IN10	44	31	24	1	I	Digital Input	CCL0 Lookup Table Input 2
CCL0_IN11	47	—	—	1	I	Digital Input	CCL0 Lookup Table Input 3
CCL0_IN11	50	32	—	2	I	Digital Input	CCL0 Lookup Table Input 3
CCL0_IN2	60	—	—	1	I	Digital Input	CCL0 Lookup Table Input 4
CCL0_IN2	63	39	—	2	I	Digital Input	CCL0 Lookup Table Input 4
CCL0_IN3	76	49	37	1	I	Digital Input	CCL0 Lookup Table Input 5
CCL0_IN3	89	—	—	2	I	Digital Input	CCL0 Lookup Table Input 5
CCL0_IN4	80	52	38	1	I	Digital Input	CCL0 Lookup Table Input 6
CCL0_IN4	87	—	—	2	I	Digital Input	CCL0 Lookup Table Input 6
CCL0_IN5	77	50	—	1	I	Digital Input	CCL0 Lookup Table Input 7
CCL0_IN5	95	61	45	2	I	Digital Input	CCL0 Lookup Table Input 7
CCL0_IN6	1	1	1	1	I	Digital Input	CCL0 Lookup Table Input 8
CCL0_IN6	2	—	—	2	I	Digital Input	CCL0 Lookup Table Input 8
CCL0_IN7	3	2	2	2	I	Digital Input	CCL0 Lookup Table Input 9
CCL0_IN7	4	—	—	1	I	Digital Input	CCL0 Lookup Table Input 9
CCL0_IN8	8	4	—	2	I	Digital Input	CCL0 Lookup Table Input 10
CCL0_IN8	13	—	—	1	I	Digital Input	CCL0 Lookup Table Input 10
CCL0_IN9	36	—	—	2	I	Digital Input	CCL0 Lookup Table Input 11
CCL0_IN9	41	28	23	1	I	Digital Input	CCL0 Lookup Table Input 11
CCL0_OUT0	55	—	—	2	O	Digital Output	CCL0 Lookup Table output 0
CCL0_OUT0	61	38	28	1	O	Digital Output	CCL0 Lookup Table output 0
CCL0_OUT1	78	—	—	2	O	Digital Output	CCL0 Lookup Table output 1
CCL0_OUT1	98	63	47	1	O	Digital Output	CCL0 Lookup Table output 1
CCL0_OUT2	5	3	3	1	O	Digital Output	CCL0 Lookup Table output 2
CCL0_OUT2	25	—	—	2	O	Digital Output	CCL0 Lookup Table output 2
CCL0_OUT3	48	—	—	2	O	Digital Output	CCL0 Lookup Table output 3
CCL0_OUT3	51	33	25	1	O	Digital Output	CCL0 Lookup Table output 3
CCL1_IN0	52	—	—	2	I	Digital Input	CCL1 Lookup Table Input 0
CCL1_IN0	64	40	29	1	I	Digital Input	CCL1 Lookup Table Input 0
CCL1_IN1	65	—	—	2	I	Digital Input	CCL1 Lookup Table Input 1
CCL1_IN1	72	45	33	1	I	Digital Input	CCL1 Lookup Table Input 1
CCL1_IN10	37	—	—	2	I	Digital Input	CCL1 Lookup Table Input 2
CCL1_IN10	39	26	21	1	I	Digital Input	CCL1 Lookup Table Input 2
CCL1_IN11	27	18	—	1	I	Digital Input	CCL1 Lookup Table Input 3
CCL1_IN11	42	29	—	2	I	Digital Input	CCL1 Lookup Table Input 3
CCL1_IN2	62	—	—	2	I	Digital Input	CCL1 Lookup Table Input 4
CCL1_IN2	66	41	—	1	I	Digital Input	CCL1 Lookup Table Input 4
CCL1_IN3	93	59	43	1	I	Digital Input	CCL1 Lookup Table Input 5
CCL1_IN3	99	—	—	2	I	Digital Input	CCL1 Lookup Table Input 5
CCL1_IN4	86	—	—	2	I	Digital Input	CCL1 Lookup Table Input 6
CCL1_IN4	94	60	44	1	I	Digital Input	CCL1 Lookup Table Input 6
CCL1_IN5	79	51	—	2	I	Digital Input	CCL1 Lookup Table Input 7
CCL1_IN5	88	55	—	1	I	Digital Input	CCL1 Lookup Table Input 7
CCL1_IN6	11	—	—	1	I	Digital Input	CCL1 Lookup Table Input 8
CCL1_IN6	23	16	12	2	I	Digital Input	CCL1 Lookup Table Input 8
CCL1_IN7	12	—	—	2	I	Digital Input	CCL1 Lookup Table Input 9
CCL1_IN7	17	12	9	1	I	Digital Input	CCL1 Lookup Table Input 9
CCL1_IN8	9	5	—	2	I	Digital Input	CCL1 Lookup Table Input 10
CCL1_IN8	10	6	—	1	I	Digital Input	CCL1 Lookup Table Input 10
CCL1_IN9	35	—	—	2	I	Digital Input	CCL1 Lookup Table Input 11
CCL1_IN9	40	27	22	1	I	Digital Input	CCL1 Lookup Table Input 11
CCL1_OUT0	71	—	—	2	O	Digital Output	CCL1 Lookup Table output 0
CCL1_OUT0	73	46	34	1	O	Digital Output	CCL1 Lookup Table output 0
CCL1_OUT1	85	—	—	2	O	Digital Output	CCL1 Lookup Table output 1
CCL1_OUT1	100	64	48	1	O	Digital Output	CCL1 Lookup Table output 1
CCL1_OUT2	16	11	8	1	O	Digital Output	CCL1 Lookup Table output 2
CCL1_OUT2	24	—	—	2	O	Digital Output	CCL1 Lookup Table output 2
CCL1_OUT3	26	17	13	1	O	Digital Output	CCL1 Lookup Table output 3
CCL1_OUT3	49	—	—	2	O	Digital Output	CCL1 Lookup Table output 3

Table 6-6. EIC Signal Descriptions
PIN NAME	PIN NUMBER			PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	PIN TYPE	FUNCTION TYPE	DESCRIPTION
EIC_EXTINT0	1/11/26/47/51/62/89	1/17/1933	1/13/2025	I	ST	External Interrupt 0 input
EIC_EXTINT1	3/12/30/48/54/65/80/95	2/21/34/52	2/16/26/38	I	ST	External Interrupt 1 input
EIC_EXTINT2	5/13/31/36/49/58/70/96/99	3/22/37/61	3/17/27/45	I	ST	External Interrupt 2 input
EIC_EXTINT3	14/25/39/61/71/97	7/26/38/62	4/21/28/46	I	ST	External Interrupt 3 input
EIC_EXTINT4	15/24/40/64/94	8/27/40/60	5/22/29/44	I	ST	External Interrupt 4 input
EIC_EXTINT5	16/41/72/98	11/28/45/63	8/23/33/47	I	ST	External Interrupt 5 input
EIC_EXTINT6	17/44/73/100	12/31/46/64	9/24/34/48	I	ST	External Interrupt 6 input
EIC_EXTINT7	21	14	10	I	ST	External Interrupt 7 input
EIC_EXTINT8	22/27/77	15/18/50	11	I	ST	External Interrupt 8 input
EIC_EXTINT9	23/42/63/79	46/29/39/51	12	I	ST	External Interrupt 9 input
EIC_EXTINT10	8/43/66/88	4/30/41/55	—	I	ST	External Interrupt 10 input
EIC_EXTINT11	9/50/52/90	5/32/56	—	I	ST	External Interrupt 11 input
EIC_EXTINT12	10/35/53/78	6	—	I	ST	External Interrupt 12 input
EIC_EXTINT13	18/55/85	—	—	I	ST	External Interrupt 13 input
EIC_EXTINT14	2/37/59/86	—	—	I	ST	External Interrupt 14 input
EIC_EXTINT15	4/38/60/87	—	—	I	ST	External Interrupt 15 input
EIC_NMI	76	49	37	I	ST	Non-Maskable Interrupt input

Table 6-7. GCLK Signal Descriptions
PIN NAME	PIN NUMBER			PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	PIN TYPE	FUNCTION TYPE	DESCRIPTION
GCLK_IO0	44/47/63/97	31/39/62	24/46	I	ST	Ext GCLK[7:0] I/O pin Input clock source
GCLK_IO1	51/66/72/96	33/41/45/61	25/33/45	I	ST
GCLK_IO2	54	34	26	I	ST
GCLK_IO3	58	37	27	I	ST
GCLK_IO4	61	38	28	I	ST
GCLK_IO5	64	40	29	I	ST
GCLK_IO6	48/50	32	—	I	ST
GCLK_IO7	43	30	—	I	ST
XIN32	30	21	16	I	Analog	32.768Khz oscillator input
XOUT32	31	22	17	O	Analog	32.768Khz oscillator output
XIN	97	62	46	I	Analog	Primary oscillator input
XOUT	96	61	45	O	Analog	Primary oscillator output

Table 6-8. PORT Signals Descriptions
PIN NAME	PIN NUMBER			PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	PIN TYPE	FUNCTION TYPE	DESCRIPTION
PA00	1	1	1	I/O	ST/CMOS	I/O Port A Pins
PA01	3	2	2	I/O	ST/CMOS
PA02	5	3	3	I/O	ST/CMOS
PA03	14	7	4	I/O	ST/CMOS
PA04	15	8	5	I/O	ST/CMOS
PA05	16	11	8	I/O	ST/CMOS
PA06	17	12	9	I/O	ST/CMOS
PA07	21	14	10	I/O	ST/CMOS
PA08	22	15	11	I/O	ST/CMOS
PA09	23	16	12	I/O	ST/CMOS
PA10	8	4	—	I/O	ST/CMOS
PA11	9	5	—	I/O	ST/CMOS
PA12	10	6	—	I/O	ST/CMOS
PA13	18	13	—	I/O	ST/CMOS
PA14	2	—	—	I/O	ST/CMOS
PA15	4	—	—	I/O	ST/CMOS
PA16	11	—	—	I/O	ST/CMOS
PA17	12	—	—	I/O	ST/CMOS
PA18	13	—	—	I/O	ST/CMOS
PA19	25	—	—	I/O	ST/CMOS
PA20	24	—	—	I/O	ST/CMOS
PB00	26	17	13	I/O	ST/CMOS	I/O Port B Pins
PB01	30	21	16	I/O	ST/CMOS
PB02	31	22	17	I/O	ST/CMOS
PB03	39	26	21	I/O	ST/CMOS
PB04	40	27	22	I/O	ST/CMOS
PB05	41	28	23	I/O	ST/CMOS
PB06	44	31	24	I/O	ST/CMOS
PB07	27	18	—	I/O	ST/CMOS
PB08	42	29	—	I/O	ST/CMOS
PB09	43	30	—	I/O	ST/CMOS
PB10	50	32	—	I/O	ST/CMOS
PB11	35	—	—	I/O	ST/CMOS
PB12	36	—	—	I/O	ST/CMOS
PB13	37	—	—	I/O	ST/CMOS
PB14	38	—	—	I/O	ST/CMOS
PB15	47	—	—	I/O	ST/CMOS
PB16	48	—	—	I/O	ST/CMOS
PB17	49	—	—	I/O	ST/CMOS
PC00	51	33	25	I/O	ST/CMOS	I/O Port C Pins
PC01	54	34	26	I/O	ST/CMOS
PC02	58	37	27	I/O	ST/CMOS
PC03	61	38	28	I/O	ST/CMOS
PC04	64	40	29	I/O	ST/CMOS
PC05	72	45	33	I/O	ST/CMOS
PC06	73	46	34	I/O	ST/CMOS
PC07	74	47	35	I/O	ST/CMOS
PC08	75	48	36	I/O	ST/CMOS
PC09	63	39	—	I/O	ST/CMOS
PC10	66	41	—	I/O	ST/CMOS
PC11	52	—	—	I/O	ST/CMOS
PC12	53	—	—	I/O	ST/CMOS
PC13	55	—	—	I/O	ST/CMOS
PC14	59	—	—	I/O	ST/CMOS
PC15	60	—	—	I/O	ST/CMOS
PC16	62	—	—	I/O	ST/CMOS
PC17	65	—	—	I/O	ST/CMOS
PC18	70	—	—	I/O	ST/CMOS
PC19	71	—	—	I/O	ST/CMOS
PD00	76	49	37	I/O	ST/CMOS	I/O Port D Pins
PD01	80	52	38	I/O	ST/CMOS
PD02	83	53	39	I/O	ST/CMOS
PD03	84	54	40	I/O	ST/CMOS
PD04	96	61	45	I/O	ST/CMOS
PD05	97	62	46	I/O	ST/CMOS
PD06	93	59	43	I/O	ST/CMOS
PD07	94	60	44	I/O	ST/CMOS
PD08	98	63	47	I/O	ST/CMOS
PD09	100	64	48	I/O	ST/CMOS
PD10	77	50	—	I/O	ST/CMOS
PD11	79	51	—	I/O	ST/CMOS
PD12	88	55	—	I/O	ST/CMOS
PD13	90	56	—	I/O	ST/CMOS
PD14	78	—	—	I/O	ST/CMOS
PD15	85	—	—	I/O	ST/CMOS
PD16	86	—	—	I/O	ST/CMOS
PD17	87	—	—	I/O	ST/CMOS
PD18	89	—	—	I/O	ST/CMOS
PD19	95	—	—	I/O	ST/CMOS
PD20	99	—	—	I/O	ST/CMOS

Table 6-9. PTC Signal Descriptions
PIN NAME	PIN NUMBER			PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	PIN TYPE	FUNCTION TYPE	DESCRIPTION
XY0	93	59	43	I/O	ST/CMOS	Digital Output (X-line) /Analog I/O (Y-line)
XY1	94	60	44	I/O	ST/CMOS
XY2	98	63	47	I/O	ST/CMOS
XY3	100	64	48	I/O	ST/CMOS
XY4	1	1	1	I/O	ST/CMOS
XY5	3	2	2	I/O	ST/CMOS
XY6	5	3	3	I/O	ST/CMOS
XY7	14	7	4	I/O	ST/CMOS
XY8	15	8	5	I/O	ST/CMOS
XY9	16	11	8	I/O	ST/CMOS
XY10	17	12	9	I/O	ST/CMOS
XY11	21	14	10	I/O	ST/CMOS
XY12	22	15	11	I/O	ST/CMOS
XY13	23	16	12	I/O	ST/CMOS
XY14	26	17	13	I/O	ST/CMOS
XY15	39	26	21	I/O	ST/CMOS
XY16	40	27	22	I/O	ST/CMOS
XY17	41	28	23	I/O	ST/CMOS
XY18	44	31	24	I/O	ST/CMOS
XY19	51	33	25	I/O	ST/CMOS
XY20	54	34	26	I/O	ST/CMOS
XY21	58	37	27	I/O	ST/CMOS
XY22	8	4	—	I/O	ST/CMOS
XY23	9	5	—	I/O	ST/CMOS
XY24	10	6	—	I/O	ST/CMOS
XY25	18	13	—	I/O	ST/CMOS
XY26	27	18	—	I/O	ST/CMOS
XY27	42	29	—	I/O	ST/CMOS
XY28	43	30	—	I/O	ST/CMOS
XY29	50	32	—	I/O	ST/CMOS
XY30	63	39	—	I/O	ST/CMOS
XY31	66	41	—	I/O	ST/CMOS
XY32	2	—	—	I/O	ST/CMOS
XY33	4	—	—	I/O	ST/CMOS
XY34	11	—	—	I/O	ST/CMOS
XY35	12	—	—	I/O	ST/CMOS
ECI0	61	38	28	I	Analog	External Capacitor Analog Input 0
ECI1	64	41	29	I	Analog	External Capacitor Analog Input 1

Table 6-10. RTC Signal Descriptions
PIN NAME	PIN NUMBER			PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	PIN TYPE	FUNCTION TYPE	DESCRIPTION
IN0	21	14	10	I	ST	RTC security tamper input loop(s)
IN1	22	15	11	I	ST
IN2	23	16	12	I	ST
IN3	26	17	13	I	ST
IN4	27	18	—	I	ST
IN5	42	29	—	I	ST
IN6	35	—	—	I	ST
IN7	36	—	—	I	ST
OUT0	39	26	21	O	CMOS	RTC security tamper output loop(s)
OUT1	40	27	22	O	CMOS
OUT2	41	28	23	O	CMOS
OUT3	44	31	24	O	CMOS
OUT4	43	30	—	O	CMOS
OUT5	50	32	—	O	CMOS
OUT6	37	—	—	O	CMOS
OUT7	38	—	—	O	CMOS

Table 6-11. SERCOM Signal Descriptions
PIN NAME	PIN NUMBER			I/O Set	PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	I/O Set	PIN TYPE	FUNCTION TYPE	DESCRIPTION
SERCOM0_PAD0	47	—	—	2	I/O	ST/CMOS	SERCOM 0 I/O Pads
SERCOM0_PAD0	51	33	25	1	I/O	ST/CMOS
SERCOM0_PAD1	48	—	—	2	I/O	ST/CMOS
SERCOM0_PAD1	54	34	26	1	I/O	ST/CMOS
SERCOM0_PAD2	49	—	—	2	I/O	ST/CMOS
SERCOM0_PAD2	58	37	27	1	I/O	ST/CMOS
SERCOM0_PAD3	52	—	—	2	I/O	ST/CMOS
SERCOM0_PAD3	61	38	28	1	I/O	ST/CMOS
SERCOM1_PAD0	60/80	52	38	1	I/O	ST/CMOS	SERCOM 1 I/O Pads
SERCOM1_PAD1	59/76	49	37	1	I/O	ST/CMOS
SERCOM1_PAD2	55	46	—	2	I/O	ST/CMOS
SERCOM1_PAD2	73	50	34	1	I/O	ST/CMOS
SERCOM1_PAD2	77	45	—	1	I/O	ST/CMOS
SERCOM1_PAD3	53	51	—	2	I/O	ST/CMOS
SERCOM1_PAD3	72	45	33	1	I/O	ST/CMOS
SERCOM1_PAD3	79	51	—	2	I/O	ST/CMOS
SERCOM2_PAD0	64	40	29	1	I/O	ST/CMOS	SERCOM 2 I/O Pads
SERCOM2_PAD0	71	—	—	2	I/O	ST/CMOS
SERCOM2_PAD1	70	—	—	2	I/O	ST/CMOS
SERCOM2_PAD1	93	59	59	1	I/O	ST/CMOS
SERCOM2_PAD2	65	—	—	2	I/O	ST/CMOS
SERCOM2_PAD2	94	60	44	1	I/O	ST/CMOS
SERCOM2_PAD3	62	—	—	2	I/O	ST/CMOS
SERCOM2_PAD3	98	63	47	1	I/O	ST/CMOS
SERCOM3_PAD0	86	—	—	2	I/O	ST/CMOS	SERCOM 3 I/O Pads
SERCOM3_PAD0	100	64	48	1	I/O	ST/CMOS
SERCOM3_PAD1	1	—	—	1	I/O	ST/CMOS
SERCOM3_PAD1	85	1	1	2	I/O	ST/CMOS
SERCOM3_PAD2	3	—	—	1	I/O	ST/CMOS
SERCOM3_PAD2	87	2	2	2	I/O	ST/CMOS
SERCOM3_PAD3	5	—	—	1	I/O	ST/CMOS
SERCOM3_PAD3	78	3	3	2	I/O	ST/CMOS
SERCOM4_PAD0	14	—	—	1	I/O	ST/CMOS	SERCOM 4 I/O Pads
SERCOM4_PAD0	95	7	4	2	I/O	ST/CMOS
SERCOM4_PAD1	15	—	—	1	I/O	ST/CMOS
SERCOM4_PAD1	99	8	5	2	I/O	ST/CMOS
SERCOM4_PAD2	16	—	—	1	I/O	ST/CMOS
SERCOM4_PAD2	89	11	8	2	I/O	ST/CMOS
SERCOM4_PAD3	2	—	—	2	I/O	ST/CMOS
SERCOM4_PAD3	17	12	9	1	I/O	ST/CMOS
SERCOM5_PAD0	11	—	—	2	I/O	ST/CMOS	SERCOM 5 I/O Pads
SERCOM5_PAD0	39	26	21	1	I/O	ST/CMOS
SERCOM5_PAD1	12	—	—	2	I/O	ST/CMOS
SERCOM5_PAD1	40	27	22	1	I/O	ST/CMOS
SERCOM5_PAD2	13	—	—	2	I/O	ST/CMOS
SERCOM5_PAD2	41	28	23	1	I/O	ST/CMOS
SERCOM5_PAD3	4	—	—	2	I/O	ST/CMOS
SERCOM5_PAD3	44	31	24	1	I/O	ST/CMOS

Table 6-12. TCC Signal Descriptions
PIN NAME	PIN NUMBER			I/O Set	PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	I/O Set	PIN TYPE	FUNCTION TYPE	DESCRIPTION
TCC0_WO0	25	—	—	2	I/O	ST/CMOS	TCC0 Waveform Outputs /Input Counter/Capture
TCC0_WO0	35	—	—	3	I/O	ST/CMOS
TCC0_WO0	51	33	25	1	I/O	ST/CMOS
TCC0_WO1	24	—	—	2	I/O	ST/CMOS
TCC0_WO1	36	—	—	3	I/O	ST/CMOS
TCC0_WO1	54	34	26	1	I/O	ST/CMOS
TCC1_WO0	58	37	27	1	I/O	ST/CMOS	TCC1 Waveform Outputs /Input Counter/Capture
TCC1_WO0	63	39	—	2	I/O	ST/CMOS
TCC1_WO1	61	38	28	1	I/O	ST/CMOS
TCC1_WO1	66	41	—	2	I/O	ST/CMOS
TCC2_WO0	43	30	29	2	I/O	ST/CMOS	TCC2 Waveform Outputs /Input Counter/Capture
TCC2_WO0	64	40	—	1	I/O	ST/CMOS
TCC2_WO1	42	29	33	2	I/O	ST/CMOS
TCC2_WO1	72	45	—	1	I/O	ST/CMOS
TCC3_WO0	37	49	37	2	I/O	ST/CMOS	TCC3 Waveform Outputs /Input Counter/Capture
TCC3_WO0	76	—	—	1	I/O	ST/CMOS
TCC3_WO1	38	52	38	2	I/O	ST/CMOS
TCC3_WO1	80	—	—	1	I/O	ST/CMOS
TCC4_WO0	8	4	44	2	I/O	ST/CMOS	TCC4 Waveform Outputs /Input Counter/Capture
TCC4_WO0	94	60	—	1	I/O	ST/CMOS
TCC4_WO1	9	5	47	2	I/O	ST/CMOS
TCC4_WO1	98	63	—	1	I/O	ST/CMOS
TCC5_WO0	77	50	48	2	I/O	ST/CMOS	TCC5 Waveform Outputs /Input Counter/Capture
TCC5_WO0	100	64	—	1	I/O	ST/CMOS
TCC5_WO1	1	1	1	1	I/O	ST/CMOS
TCC5_WO1	79	51	—	2	I/O	ST/CMOS
TCC6_WO0	3	2	2	1	I/O	ST/CMOS	TCC6 Waveform Outputs /Input Counter/Capture
TCC6_WO0	88	55	—	2	I/O	ST/CMOS
TCC6_WO1	5	3	3	1	I/O	ST/CMOS
TCC6_WO1	90	56	—	2	I/O	ST/CMOS

Table 6-13. USB Signal Descriptions
PIN NAME	PIN NUMBER			PIN TYPE	FUNCTION TYPE	DESCRIPTION
PIN NAME	100 TQFP	64 TQFP/VQFN	48 TQFP/VQFN	PIN TYPE	FUNCTION TYPE	DESCRIPTION
USB_SOF_1KHZ	80	52	38	O	CMOS	USB FS Start of Frame
USB_DM	83	53	39	I/O	Analog	USB FS D- differential data line
USB_DP	84	54	40	I/O	Analog	USB FS D+ differential data line