Raspberry Pi Alternate Functions

	A	B	C	D	E	F	G	H	J	K	L	M	N	O
1		Pull	ALT0	ALT1	ALT2	ALT3	ALT4	ALT5	RGB565	RGB565	RGB565	RGB666	RGB666	RGB888
2	GPIO0	High	SDA0	SA5	PCLK	AVEOUT_VCLK	AVEIN_VCLK	-
3	GPIO1	High	SCL0	SA4	DE	AVEOUT_DSYNC	AVEIN_DSYNC	-
4	GPIO2	High	SDA1	SA3	LCD_VSYNC	AVEOUT_VSYNC	AVEIN_VSYNC	-
5	GPIO3	High	SCL1	SA2	LCD_HSYNC	AVEOUT_HSYNC	AVEIN_HSYNC	-
6	GPIO4	High		SA1	DPI_D0	AVEOUT_VID0	AVEIN_VID0	ARM_TDI	B3	B3	-	B2	B2	B0
7	GPIO5	High		SA0	DPI_D1	AVEOUT_VID1	AVEIN_VID1	ARM_TDO	B4	B4	B3	B3	B3	B1
8	GPIO6	High		SOE_N / SE	DPI_D2	AVEOUT_VID2	AVEIN_VID2	ARM_RTCK	B5	B5	B4	B4	B4	B2
9	GPIO7	High	SPI0_CE1_N	SWE_N / SRW_N	DPI_D3	AVEOUT_VID3	AVEIN_VID3	-	B6	B6	B5	B5	B5	B3
10	GPIO8	High	SPI0_CE0_N	SD0	DPI_D4	AVEOUT_VID4	AVEIN_VID4	-	B7	B7	B6	B6	B6	B4
11	GPIO9	Low	SPI0_MISO	SD1	DPI_D5	AVEOUT_VID5	AVEIN_VID5	-	G2	-	B7	B7	B7	B5
12	GPIO10	Low	SPI0_MOSI	SD2	DPI_D6	AVEOUT_VID6	AVEIN_VID6	-	G3	-	-	G2	-	B6
13	GPIO11	Low	SPI0_SCLK	SD3	DPI_D7	AVEOUT_VID7	AVEIN_VID7	-	G4	-	-	G3	-	B7
14	GPIO12	Low	PWM0	SD4	DPI_D8	AVEOUT_VID8	AVEIN_VID8	ARM_TMS	G5	G2	G2	G4	G2	G0
15	GPIO13	Low	PWM1	SD5	DPI_D9	AVEOUT_VID9	AVEIN_VID9	ARM_TCK	G6	G3	G3	G5	G3	G1
16	GPIO14	Low	TXD0	SD6	DPI_D10	AVEOUT_VID10	AVEIN_VID10	TXD1	G7	G4	G4	G6	G4	G2
17	GPIO15	Low	RXD0	SD7	DPI_D11	AVEOUT_VID11	AVEIN_VID11	RXD1	R3	G5	G5	G7	G5	G3
18	GPIO16	Low	FL0	SD8	DPI_D12	CTS0	SPI1_CE2_N	CTS1	R4	G6	G6	R2	G6	G4
19	GPIO17	Low	FL1	SD9	DPI_D13	RTS0	SPI1_CE1_N	RTS1	R5	G7	G7	R3	G7	G5
20	GPIO18	Low		SD10	DPI_D14	BSCSL SDA / MOSI	SPI1_CE0_N	PWM0	R6	-	-	R4	-	G6
21	GPIO19	Low		SD11	DPI_D15	BSCSL SCL / SCLK	SPI1_MISO	PWM1	R7	-	-	R5	-	G7
22	GPIO20	Low		SD12	DPI_D16	BSCSL / MISO	SPI1_MOSI	GPCLK0	-	R3	-	R6	R2	R0
23	GPIO21	Low		SD13	DPI_D17	BSCSL / CE_N	SPI1_SCLK	GPCLK1	-	R4	R3	R7	R3	R1
24	GPIO22	Low	SD0_CLK	SD14	DPI_D18	SD1_CLK	ARM_TRST	-	-	R5	R4	-	R4	R2
25	GPIO23	Low	SD0_CMD	SD15	DPI_D19	SD1_CMD	ARM_RTCK	-	-	R6	R5	-	R5	R3
26	GPIO24	Low	SD0_DAT0	SD16	DPI_D20	SD1_DAT0	ARM_TDO	-	-	R7	R6	-	R6	R4
27	GPIO25	Low	SD0_DAT1	SD17	DPI_D21	SD1_DAT1	ARM_TCK	-	-	-	R7	-	R7	R5
28	GPIO26	Low	SD0_DAT2	TE0	DPI_D22	SD1_DAT2	ARM_TDI	-	-	-	-	-	-	R6
29	GPIO27	Low	SD0_DAT3	TE1	DPI_D23	SD1_DAT3	ARM_TMS	-	-	-	-	-	-	R7
30	GPIO28	-	SDA0	SA5	PCM_CLK	FL0	-	-
31	GPIO29	-	SCL0	SA4	PCM_FS	FL1	-	-
32	GPIO30	Low	TE0	SA3	PCM_DIN	CTS0	-	CTS1
33	GPIO31	Low	FL0	SA2	PCM_DOUT	RTS0	-	RTS1
34	GPIO32	Low	GPCLK0	SA1	RING_OCLK	TXD0	-	TXD1
35	GPIO33	Low	FL1	SA0	TE1	RXD0	-	RXD1
36	GPIO34	High	GPCLK0	SOE_N / SE	TE2	SD1_CLK	-	-
37	GPIO35	High	SPI0_CE1_N	SWE_N / SRW_N	-	SD1_CMD	-	-
38	GPIO36	High	SPI0_CE0_N	SD0	TXD0	SD1_DAT0	-	-
39	GPIO37	Low	SPI0_MISO	SD1	RXD0	SD1_DAT1	-	-
40	GPIO38	Low	SPI0_MOSI	SD2	RTS0	SD1_DAT2	-	-
41	GPIO39	Low	SPI0_SCLK	SD3	CTS0	SD1_DAT3	-	-
42	GPIO40	Low	PWM0	SD4	-	SD1_DAT4	SPI2_MISO	TXD1
43	GPIO41	Low	PWM1	SD5	TE0	SD1_DAT5	SPI2_MOSI	RXD1
44	GPIO42	Low	GPCLK1	SD6	TE1	SD1_DAT6	SPI2_SCLK	RTS1
45	GPIO43	Low	GPCLK2	SD7	TE2	SD1_DAT7	SPI2_CE0_N	CTS1
46	GPIO44	-	GPCLK1	SDA0	SDA1	TE0	SPI2_CE1_N	-
47	GPIO45	-	PWM1	SCL0	SCL1	TE1	SPI2_CE2_N	-
48	GPIO46	High	SDA0	SDA1	SPI0_CE0_N	-	-	SPI2_CE1_N
49	GPIO47	High	SCL0	SCL1	SPI0_MISO	-	-	SPI2_CE0_N
50	GPIO48	High	SD0_CLK	FL0	SPI0_MOSI	SD1_CLK	ARM_TRST	SPI2_SCLK
51	GPIO49	High	SD0_CMD	GPCLK0	SPI0_SCLK	SD1_CMD	ARM_RTCK	SPI2_MOSI
52	GPIO50	High	SD0_DAT0	GPCLK1	PCM_CLK	SD1_DAT0	ARM_TDO	-
53	GPIO51	High	SD0_DAT1	GPCLK2	PCM_FS	SD1_DAT1	ARM_TCK	-
54	GPIO52	High	SD0_DAT2	PWM0	PCM_DIN	SD1_DAT2	ARM_TDI	-
55	GPIO53	High	SD0_DAT3	PWM1	PCM_DOUT	SD1_DAT3	ARM_TMS	-
56
57	Note: Certain pins should never be muxed because they are reserved for internal Raspberry Pi systems. Anything with this gray background should never be used/changed.
58
59	Function Legend
60	I2C 0	I2C 1
61	SPI 0	SPI 1	SPI 2
62	General Clock 0	General Clock 1	General Clock 2
63	PWM 0	PWM 1		Note: This is usually used for audio
64	UART 0	UART 1
65	Parallel Display Interface
66	Secondary memory interface
67	PCM Audio
68	BSC ISP Slave
69	JTAG
70	Unknown?	Unknown?
71	RESERVED
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100