IRLib2 Support for SAMD21

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q
1	Port	PTC	Per E	Per F			Int	MKR 1000	Arduino Zero	Arduino M0 Pro	Feather M0	Feather M0 Express	Circuit Pl Exp	Trinket M0	Gemma M0	Itsy-bitsy M0	QT-Py

2	PA02	Y00	-na-	-na-			02	15 A0 DAC0 ni	14 A0 43 DAC0	24 A0, 47 DAC	14 A0, 43 DAC	14 A0, 42 DAC	12 A0, 14	01, 14 A0	01, 08 A0	14 A0, 43 DAC	00 A0 DAC
3	PA03	Y01	-na-	-na-			03	25 AREF	42 AREF	15 AREF	42 AREF	41 AREF				42 AREF	01 A1 DREF
4	PA04	Y02	TCC0_CH0	-na-	e	E	04	18 A3~ ni	17 A3	27 A3	17 A3	17 A3	24 A10 Proximity		00~ SDA TX MOSI, 10 A2	17 A3	02 A2
5	PA05	Y03	TCC0_CH1	-na-	o	E	05	19 A4~ ni	18 A4	28 A4	18 A4	18 A4	06~ A1, 15		02~ SCL RX CLK, 09 A1	18 A4	03 A3
6	PA16	X04	TCC2_CH0	TCC0_CH6	e	F	00	08~’ MOSI	11~’	11~, 40 EDBG:MOSI	11~’, 35 EDBG:MOSI	11~’, 35 EDBG:MOSI	30 Internal MISO			11	04 SDA
7	PA17	X05	TCC2_CH1	TCC0_CH7	o	F	01	09 SCK	13~’ LED	13~, 42 EDBG:SCK	13 LED, EDBG:SCK	13 LED, EDBG:SCK	13 Red LED			13	05 SCL
8	PA06	Y04	TCC1_CH0	-na-	e	E	06	20 A5 ni	08~	08~, 45 EDBG:8	08~, 40 EDBG:8, 44 A6	08~, 20 A6, 40 NeoPixel	09~ A2, 16	04~ TX, 18 A4		08, 24 A10	06 A6 TX
9	PA07	Y05	TCC1_CH1	-na-	o	E	07	21 A6 ni	09~	09~, 46 EDBG:9	09~, 41 EDBG:9, 45 A7	09~, 21 A7	10~ A3, 17	03~ RX, 17 A3		09, 25 A11	07 A7 RX
10	PA11	X03	TCC1_CH1	TCC0_CH3	o	F	11	03~’ ni	00 RX	00 RX	00 RX	00 RX, 24 A10	22 A8 Light Sensor			00 RX, 20 A6	08 A8 SCK
11	PA09	X01	TCC0_CH1	TCC1_CH3	o	E	09	12 SCL ni	03~	03~	03~	03~, 38 Flash SCK	23 A9 Thermistor	02~ SCL, 06,15 A1		03	09 A9 MISO
12	PA10	X02	TCC1_CH0	TCC0_CH2	e	F	10	02~’ ni	01 TX	01 TX	01 TX	01 TX, 25 A11	34 SCK	13 LED, 12		01 TX, 21 A7	10 A10 MOSI
13	PA18	X06	TC3_CH0	TCC0_CH2	e	F	02	25 USB/ID	10~’	10~, 41 EDBG:SS	10~’, 36 EDBG:SS	10~’, 36 EDBG:SS				10	11 Neopix
14	PA15		TC3_CH1	TCC0_CH5	o	F	15	29 W-MISO	05~’	05~	05~’	05~’, 23 A9	07 Switch	22 rxled		05, 23 A9	12 Neopix pwr
15	PA27		-na-	-na-			15	30 W-RESET	26 TX LED	31 TX LED	26 TX LED	32 TX LED				39 Flash SS	13 fake pin
16	PA23	X11	TC4_CH1	TCC0_CH5	o	F	07	01~’	21 SCL	17 SCL, 38 EDBG:SCL	21 SCL, 33 EDBG:SCL	27 SCL	25~ IR out		13 LED	27 SCL	14 SCK1
17	PA19	X07	TC3_CH1	TCC0_CH3	o	F	03	10~’ MISO ni	12~	12~, 39 EDBG:MISO	12~, 34 EDBG:MISO	12~, 34 EDBG:MISO				12	15 MISO1
18	PA22	X10	TC4_CH0	TCC0_CH4	e	F	06	00~’	20 SDA	16 SDA, 37 EDBG:SDA	20 SDA, 32 EDBG:SDA	26 SDA	36 Host USB			26 SDA	16 MOST1
19	PA08	X00	TCC0_CH0	TCC1_CH2	e	E	NMI	11 SDA ?~	04~ ni	02~ ni	04~	04~, 22 A8, 37 Flash MOSI	35 SDA	00~ SDA, 05,16 A2		04, 22 A8	17 SPI1 CS
20	PA28		-na-	-na-			08	31 W-CHIP_EN	27 USB_H_EN	32 USB_H_EN	27 USB_H_EN	33 USB_H_EN	04 Left Button	09 USB_H_EN	05 USB_H_EN	32 TX LED, 33 USB_H_EN	18? USB Host en
21	PA24		TC5_CH0	TCC1_CH2	e	F	12	22 USB/DM	28 USB/DM	33 USB/DM	28 USB/DM	34 USB/DM	37 USB/DM	10 USB/DM	06 USB/DM	34 USB/DM	19? USB/DM
22	PA25		TC5_CH1	TCC1_CH3	o	F	13	23 USB/DP	29 USB/DP	34 USB/DP	29 USB/DP	35 USB/DP	38 USB/DP	11 USB/DP	07 USB/DP	35 USB/DP	20? USB/DP
23	PA00		TCC2_CH0	-na-			00	34 XIN32	XIN32				28 Internal SDA	07 Dotstar Data	03 Dotstar Data	40 Dotstar Clk
24	PA01		TCC2_CH1	-na-			01	35 XOUT n	XOUT32				29 Internal SCL	08 Dotstar Clk	04 Dotstar Clk	41 Dotstar Data
25	PA12		TCC2_CH2	TCC0_CH6	e	F	12	26 W-MOSI	22 MISO	18 MISO	22 MISO	28 MISO	26 IR in			28 MSIO
26	PA13		TCC2_CH1	TCC0_CH7	o	F	13	27 W-SCK	38 EDBG_GPI00	43 EDBG	38 EDBG	39 Flash SS	27 LIS IRQ
27	PA14		TC3_CH0	TCC0_CH4	e	F	14	28 W-SSN	02	04~	02	02, Flash MISO	05 Right Button	21 txled	14 txled	02
28	PA20	X08	TC7_CH0	TCC0_CH6	e	F	04	06~	06~	06~	06~	06~	32 Internal MOSI			06
29	PA21	X09	TC7_CH1	TCC0_CH7	o	F	05	07~	07	07~, 44 EDBG:7	07, 39 EDBG:7	07, 39 EDBG:7	31 Internal SCK			07
30	PA26		-na-	-na-
31	PA29		-na-	-na-
32	PA30		TCC1_CH0	-na-	e	E	10						11 Spkr S.Dn	19 SWCLK	11 SWCLK
33	PA31		TCC1_CH1	-na-	o	E	11							20 SWDIO	12 SWDIO	31 RX LED
34	PB00	Y06	TC7_CH0	-na-			00
35	PB01	Y07	TC7_CH1	-na-			01				19 A5	19 A5
36	PB02	Y08	TC6_CH0	-na-			02	16 A1	19 A5	29 A5			02 A5 SDA, 19			19 A5
37	PB03	Y09	TC6_CH1	-na-			03	17 A2	25 RX LED	30 RX LED	25 RX LED	31 RX LED	03 A4 SCL, 18			36 Flash MISO
38	PB04	Y10	-na-	-na-			04
39	PB05	Y11	-na-	-na-			05
40	PB06	Y12	-na-	-na-			06
41	PB07	Y13	-na-	-na-			07
42	PB08	Y14	TC4_CH0	-na-			08	32 W-WAKE	15 A1 ?~	25 A1	15 A1 ?~	15 A1 ?~	01~ TX A7, 21			15 A1
43	PB09	Y15	TC4_CH1	-na-			09	33 W-IRQN	16 A2 ?~	26 A2	16 A2 ?~	16 A2 ?~	00~ RX A6, 20			16 A2
44	PB10		TC5_CH0	TCC0_CH4	e	F	10	04~’	23 MOSI	21 MOSI	23 MOSI	29 MOSI				29 MOSI
45	PB11		TC5_CH1	TCC0_CH5	o	F	11	05~’	24 SCK	20 SCK	24 SCK	30 SCK				30 SCK
46	PB12	X12	TC4_CH0	TCC0_CH6	e	F	12
47	PB13	X13	TC4_CH1	TCC0_CH7	o	F	13
48	PB14	X14	TC5_CH0	-na-			14
49	PB15	X15	TC5_CH0	-na-			15
50	PB16		TC6_CH0	TCC0_CH4	e	F	00
51	PB17		TC6_CH1	TCC0_CH5	o	F	01
52	PB18		-na-	-na-
53	PB19		-na-	-na-
54	PB20		-na-	-na-
55	PB21		-na-	-na-
56	PB22		TC7_CH0	-na-			06	14 TX ni	30 EBDG TX	35 EDBG TX	30 EBDG TX		33 Flash CS			37 Flash MOSI
57	PB23		TC7_CH0	-na-			07	13 RX ni	31 EBDG RX	36 EDBG RX	31 EBDG RX		08 NeoPixels			38 Flash SCK
58	PB24		-na-	-na-
59	PB25		-na-	-na-
60	PB26		-na-	-na-
61	PB27		-na-	-na-
62	PB28		-na-	-na-
63	PB29		-na-	-na-
64	PB30		TCC0_CH0	TCC1_CH2	e	E	14
65	PB31		TCC0_CH1	TCC1_CH3	o	E	15
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67								Legend
68								Unsupported	Confirmed working	Default	User Inaccessible	Untested	Untested should work
69
70								NOTES:
71								Pins marked with a ~ (tilda) means that the board advertises it has PWM.
72								Pins marked with ~' (tilda followed by an apostrophe) means that we do PWM on a different timer than the board normally uses.
73								Pins marked with ?~ (question mark followed by tilda) means that PWM is not advertised but the pin attributes in variant.cpp indicate it is available
74								Pins marked with ni means "no interrupt". The attachInterrupt() method is not supported and cannot be used for IRrecvPCI or IRfreq receivers.
75								The primary use of the pin is listed first and alternate uses are separated by commas.
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