Notes/Alternative Functions				Pin Numbers
ALT 5	ALT 4	ALT 3	ALT 0	GPIO (BCM №)	RPi Pin №
50 mA max; shared w/ 17				+3V3	1
			I²C1_SDA	GPIO 2	3
			I²C1_SCL	GPIO 3	5
ARM_TDI			GPCLK0	GPIO 4	7
				GND	9
UART1_RTS	SPI1_CE1_N	UART0_RTS	reserved	GPIO 17	11
	ARM_TMS	SD1_DAT3	reserved	GPIO 27	13
	ARM_TRST	SD1_CLK	reserved	GPIO 22	15
50 mA max; shared w/ 1				+3V3	17
			SPI0_MOSI	GPIO 10	19
			SPI0_MISO	GPIO 9	21
			SPI0_SCLK	GPIO 11	23
				GND	25
ID EEPROM; GPIO 0 but not usable as such			I2C0_SDA	ID_SD	27
ARM_TDO			GPCLK1	GPIO 5	29
ARM_RTCK			GPCLK2	GPIO 6	31
ARM_TCK			PWM1	GPIO 13	33
PWM1	SPI1_MISO	BSCSL SCL/SCLK	PCM_FS	GPIO 19	35
	ARM_TDI	SD1_DAT2	reserved	GPIO 26	37
				GND	39

Notes/Alternative Functions				Pin Numbers
ALT 5	ALT 4	ALT 3	ALT 0	GPIO (BCM №)	RPi Pin №
				+5V	2
				+5V	4
				GND	6
UART1_TXD			UART0_TXD	GPIO 14	8
UART1_RXD			UART0_RDX	GPIO 15	10
PWM0	SPI1_CE0_N	BSCSL SDA/MOSI	PCM_CLK	GPIO 18	12
				GND	14
	ARM_RTCK	SD1_CMD	reserved	GPIO 23	16
	ARM_TDO	SD1_DAT0	reserved	GPIO 24	18
				GND	20
	ARM_TCK	SD1_DAT1	reserved	GPIO 25	22
			SPI0_CE0_N	GPIO 8	24
			SPI0_CE1_N	GPIO 7	26
ID EEPROM; GPIO 1 but not usable as such			I²C0_SCL	ID_SC	28
				GND	30
			PWM0	GPIO 12	32
				GND	34
UART1_CTS	SPI1_CE2_N	UART0_CTS	reserved	GPIO 16	36
GPCLK0	SPI1_MOSI	BSCSL/MISO	PCM_DIN	GPIO 20	38
GPCLK1	SPI1_SCLK	BSCSL/CE_N	PCM_DOUT	GPIO 21	40