Expansion

Expansion Connectors

The expansion interface on the board is comprised of two 46 pin connectors, the P8 and P9 Headers. All signals on the expansion headers are 3.3V unless otherwise indicated.

Note

Do not connect 5V logic level signals to these pins or the board will be damaged.

Note

DO NOT APPLY VOLTAGE TO ANY I/O PIN WHEN POWER IS NOT SUPPLIED TO THE BOARD. IT WILL DAMAGE THE PROCESSOR AND VOID THE WARRANTY.

NO PINS ARE TO BE DRIVEN UNTIL AFTER THE SYS_RESET LINE GOES HIGH.

Figure ? shows the location of the expansion connectors.

The location and spacing of the expansion headers are the same as on BeagleBone Black.

Connector P8

The following tables show the pinout of the P8 expansion header. The SW is responsible for setting the default function of each pin. Refer to the processor documentation for more information on these pins and detailed descriptions of all of the pins listed. In some cases there may not be enough signals to complete a group of signals that may be required to implement a total interface.

The column heading is the pin number on the expansion header.

The GPIO row is the expected gpio identifier number in the Linux kernel.

The BALL row is the pin number on the processor.

The REG row is the offset of the control register for the processor pin.

The MODE # rows are the mode setting for each pin. Setting each mode to align with the mode column will give that function on that pin.

If included, the 2nd BALL row is the pin number on the processor for a second processor pin connected to the same pin on the expansion header. Similarly, all row headings starting with 2nd refer to data for this second processor pin.

Note

DO NOT APPLY VOLTAGE TO ANY I/O PIN WHEN POWER IS NOT SUPPLIED TO THE BOARD. IT WILL DAMAGE THE PROCESSOR AND VOID THE WARRANTY.

NO PINS ARE TO BE DRIVEN UNTIL AFTER THE SYS_RESET LINE GOES HIGH.

Table 30 P8.01-P8.02

P8.01	P8.02
GND	GND

Table 31 P8.03-P8.05

	P8.03	P8.04	P8.05
GPIO	24	25	193
BALL	AB8	AB5	AC9
REG	0x179C	0x17A0	0x178C
MODE 0	mmc3_dat6	mmc3_dat7	mmc3_dat2
1	spi4_d0	spi4_cs0	spi3_cs0
2	uart10_ctsn	uart10_rtsn	uart5_ctsn
3
4	vin2b_de1	vin2b_clk1	vin2b_d3
5
6
7
8
9	vin5a_hsync0	vin5a_vsync0	vin5a_d3
10	ehrpwm3_tripzone_input	eCAP3_in_PWM3_out	eQEP3_index
11	pr2_mii1_rxd1	pr2_mii1_rxd0	pr2_mii_mr1_clk
12	pr2_pru0_gpi10	pr2_pru0_gpi11	pr2_pru0_gpi6
13	pr2_pru0_gpo10	pr2_pru0_gpo11	pr2_pru0_gpo6
14	gpio1_24	gpio1_25	gpio7_1
15	Driver off	Driver off	Driver off

Table 32 P8.06-P8.09

	P8.06	P8.07	P8.08	P8.09
GPIO	194	165	166	178
BALL	AC3	G14	F14	E17
REG	0x1790	0x16EC	0x16F0	0x1698
MODE0	mmc3_dat3	mcasp1_axr14	mcasp1_axr15	xref_clk1
1	spi3_cs1	mcasp7_aclkx	mcasp7_fsx	mcasp2_axr9
2	uart5_rtsn	mcasp7_aclkr	mcasp7_fsr	mcasp1_axr5
3				mcasp2_ahclkx
4	vin2b_d2			mcasp6_ahclkx
5
6
7		vin6a_d9	vin6a_d8	vin6a_clk0
8
9	vin5a_d2
10	eQEP3_strobe	timer11	timer12	timer14
11	pr2_mii1_rxdv	pr2_mii0_rxdv	pr2_mii0_rxd3	pr2_mii1_crs
12	pr2_pru0_gpi7	pr2_pru1_gpi16	pr2_pru0_gpi20	pr2_pru1_gpi6
13	pr2_pru0_gpo7	pr2_pru1_gpo16	pr2_pru0_gpo20	pr2_pru1_gpo6
14	gpio7_2	gpio6_5	gpio6_6	gpio6_18
15	Driver off	Driver off	Driver off	Driver off

Table 33 P8.10-P8.13

	P8.10	P8.11	P8.12	P8.13
GPIO	164	75	74	107
BALL	A13	AH4	AG6	D3
REG	0x16E8	0x1510	0x150C	0x1590
MODE 0	mcasp1_axr13	vin1a_d7	vin1a_d6	vin2a_d10
1	mcasp7_axr1
2
3		vout3_d0	vout3_d1	mdio_mclk
4		vout3_d16	vout3_d17	vout2_d13
5
6
7	vin6a_d10
8
9				kbd_col7
10	timer10	eQEP2B_in	eQEP2A_in	ehrpwm2B
11	pr2_mii_mr0_clk			pr1_mdio_mdclk
12	pr2_pru1_gpi15	pr1_pru0_gpi4	pr1_pru0_gpi3	pr1_pru1_gpi7
13	pr2_pru1_gpo15	pr1_pru0_gpo4	pr1_pru0_gpo3	pr1_pru1_gpo7
14	gpio6_4	gpio3_11	gpio3_10	gpio4_11
15	Driver off	Driver off	Driver off	Driver off

Table 34 P8.14-P8.16

	P8.14	P8.15	P8.16
GPIO	109	99	125
BALL	D5	D1	B4
REG	0x1598	0x1570	0x15BC
MODE 0	vin2a_d12	vin2a_d2	vin2a_d21
1
2			vin2b_d2
3	rgmii1_txc		rgmii1_rxd2
4	vout2_d11	vout2_d21	vout2_d2
5		emu12	vin3a_fld0
6			vin3a_d13
7
8	mii1_rxclk	uart10_rxd	mii1_col
9	kbd_col8	kbd_row6
10	eCAP2_in_PWM2_out	eCAP1_in_PWM1_out
11	pr1_mii1_txd1	pr1_ecap0_ecap_capin_apwm_o	pr1_mii1_rxlink
12	pr1_pru1_gpi9	pr1_edio_data_in7	pr1_pru1_gpi18
13	pr1_pru1_gpo9	pr1_edio_data_out7	pr1_pru1_gpo18
14	gpio4_13	gpio4_3	gpio4_29
15	Driver off	Driver off	Driver off
2nd BALL		A3
2nd REG		0x15B4
2nd MODE 0		vin2a_d19
2nd 1
2nd 2		vin2b_d4
2nd 3		rgmii1_rxctl
2nd 4		vout2_d4
2nd 5
2nd 6		vin3a_d11
2nd 7
2nd 8		mii1_txer
2nd 9
2nd 10		ehrpwm3_tripzone_input
2nd 11		pr1_mii1_rxd0
2nd 12		pr1_pru1_gpi16
2nd 13		pr1_pru1_gpo16
2nd 14		gpio4_27
2nd 15		Driver off

Table 35 P8.17-P8.19

	P8.17	P8.18	P8.19
GPIO	242	105	106
BALL	A7	F5	E6
REG	0x1624	0x1588	0x158C
MODE 0	vout1_d18	vin2a_d8	vin2a_d9
1
2	emu4
3	vin4a_d2
4	vin3a_d2	vout2_d15	vout2_d14
5	obs11	emu18	emu19
6	obs27
7
8		mii1_rxd3	mii1_rxd0
9		kbd_col5	kbd_col6
10	pr2_edio_data_in2	eQEP2_strobe	ehrpwm2A
11	pr2_edio_data_out2	pr1_mii1_txd3	pr1_mii1_txd2
12	pr2_pru0_gpi15	pr1_pru1_gpi5	pr1_pru1_gpi6
13	pr2_pru0_gpo15	pr1_pru1_gpo5	pr1_pru1_gpo6
14	gpio8_18	gpio4_9	gpio4_10
15	Driver off	Driver off	Driver off

Table 36 P8.20-P8.22

	P8.20	P8.21	P8.22
GPIO	190	189	23
BALL	AC4	AD4	AD6
REG	0x1780	0x177C	0x1798
MODE 0	mmc3_cmd	mmc3_clk	mmc3_dat5
1	spi3_sclk		spi4_d1
2			uart10_txd
3
4	vin2b_d6	vin2b_d7	vin2b_d0
5
6
7
8
9	vin5a_d6	vin5a_d7	vin5a_d0
10	eCAP2_in_PWM2_out	ehrpwm2_tripzone_input	ehrpwm3B
11	pr2_mii1_txd2	pr2_mii1_txd3	pr2_mii1_rxd2
12	pr2_pru0_gpi3	pr2_pru0_gpi2	pr2_pru0_gpi9
13	pr2_pru0_gpo3	pr2_pru0_gpo2	pr2_pru0_gpo9
14	gpio6_30	gpio6_29	gpio1_23
15	Driver off	Driver off	Driver off

Table 37 P8.23-P8.26

	P8.23	P8.24	P8.25	P8.26
GPIO	22	192	191	124
BALL	AC8	AC6	AC7	B3
REG	0x1794	0x1788	0x1784	0x15B8
MODE 0	mmc3_dat4	mmc3_dat1	mmc3_dat0	vin2a_d20
1	spi4_sclk	spi3_d0	spi3_d1
2	uart10_rxd	uart5_txd	uart5_rxd	vin2b_d3
3				rgmii1_rxd3
4	vin2b_d1	vin2b_d4	vin2b_d5	vout2_d3
5				vin3a_de0
6				vin3a_d12
7
8				mii1_rxer
9	vin5a_d1	vin5a_d4	vin5a_d5
10	ehrpwm3A	eQEP3B_in	eQEP3A_in	eCAP3_in_PWM3_out
11	pr2_mii1_rxd3	pr2_mii1_txd0	pr2_mii1_txd1	pr1_mii1_rxer
12	pr2_pru0_gpi8	pr2_pru0_gpi5	pr2_pru0_gpi4	pr1_pru1_gpi17
13	pr2_pru0_gpo8	pr2_pru0_gpo5	pr2_pru0_gpo4	pr1_pru1_gpo17
14	gpio1_22	gpio7_0	gpio6_31	gpio4_28
15	Driver off	Driver off	Driver off	Driver off

Table 38 P8.27-P8.29

	P8.27	P8.28	P8.29
GPIO	119	115	118
BALL	E11	D11	C11
REG	0x15D8	0x15C8	0x15D4
MODE 0	vout1_vsync	vout1_clk	vout1_hsync
1
2
3	vin4a_vsync0	vin4a_fld0	vin4a_hsync0
4	vin3a_vsync0	vin3a_fld0	vin3a_hsync0
5
6
7
8	spi3_sclk	spi3_cs0	spi3_d0
9
10
11
12	pr2_pru1_gpi17
13	pr2_pru1_gpo17
14	gpio4_23	gpio4_19	gpio4_22
15	Driver off	Driver off	Driver off
2nd BALL	A8	C9	A9
2nd REG	0x1628	0x162C	0x1630
2nd MODE0	vout1_d19	vout1_d20	vout1_d21
2nd 1
2nd 2	emu15	emu16	emu17
2nd 3	vin4a_d3	vin4a_d4	vin4a_d5
2nd 4	vin3a_d3	vin3a_d4	vin3a_d5
2nd 5	obs12	obs13	obs14
2nd 6	obs28	obs29	obs30
2nd 7
2nd 8
2nd 9
2nd 10	pr2_edio_data_in3	pr2_edio_data_in4	pr2_edio_data_in5
2nd 11	pr2_edio_data_out3	pr2_edio_data_out4	pr2_edio_data_out5
2nd 12	pr2_pru0_gpi16	pr2_pru0_gpi17	pr2_pru0_gpi18
2nd 13	pr2_pru0_gpo16	pr2_pru0_gpo17	pr2_pru0_gpo18
2nd 14	gpio8_19	gpio8_20	gpio8_21
2nd 15	Driver off	Driver off	Driver off

Table 39 P8.30-P8.32

	P8.30	P8.31	P8.32
GPIO	116	238	239
BALL	B10	C8	C7
REG	0x15CC	0x1614	0x1618
MODE 0	vout1_de	vout1_d14	vout1_d15
1
2		emu13	emu14
3	vin4a_de0	vin4a_d14	vin4a_d15
4	vin3a_de0	vin3a_d14	vin3a_d15
5		obs9	obs10
6		obs25	obs26
7
8	spi3_d1
9
10		pr2_uart0_txd	pr2_ecap0_ecap_capin_apwm_o
11
12		pr2_pru0_gpi11	pr2_pru0_gpi12
13		pr2_pru0_gpo11	pr2_pru0_gpo12
14	gpio4_20	gpio8_14	gpio8_15
15	Driver off	Driver off	Driver off
2nd BALL	B9	G16	D17
2nd REG	0x1634	0x173C	0x1740
2nd MODE 0	vout1_d22	mcasp4_axr0	mcasp4_axr1
2nd 1
2nd 2	emu18	spi3_d0	spi3_cs0
2nd 3	vin4a_d6	uart8_ctsn	uart8_rtsn
2nd 4	vin3a_d6	uart4_rxd	uart4_txd
2nd 5	obs15
2nd 6	obs31	vout2_d18	vout2_d19
2nd 7
2nd 8		vin4a_d18	vin4a_d19
2nd 9		vin5a_d13	vin5a_d12
2nd 10	pr2_edio_data_in6
2nd 11	pr2_edio_data_out6
2nd 12	pr2_pru0_gpi19		pr2_pru1_gpi0
2nd 13	pr2_pru0_gpo19		pr2_pru1_gpo0
2nd 14	gpio8_22
2nd 15	Driver off	Driver off	Driver off

Table 40 P8.33-P8.35

	P8.33	P8.34	P8.35
GPIO	237	235	236
BALL	C6	D8	A5
REG	0x1610	0x1608	0x160C
MODE 0	vout1_d13	vout1_d11	vout1_d12
1
2	emu12	emu10	emu11
3	vin4a_d13	vin4a_d11	vin4a_d12
4	vin3a_d13	vin3a_d11	vin3a_d12
5	obs8	obs6	obs7
6	obs24	obs22	obs23
7		obs_dmarq2
8
9
10	pr2_uart0_rxd	pr2_uart0_cts_n	pr2_uart0_rts_n
11
12	pr2_pru0_gpi10	pr2_pru0_gpi8	pr2_pru0_gpi9
13	pr2_pru0_gpo10	pr2_pru0_gpo8	pr2_pru0_gpo9
14	gpio8_13	gpio8_11	gpio8_12
15	Driver off	Driver off	Driver off
2nd BALL	AF9	G6	AD9
2nd REG	0x14E8	0x1564	0x14E4
2nd MODE0	vin1a_fld0	vin2a_vsync0	vin1a_de0
2nd 1	vin1b_vsync1		vin1b_hsync1
2nd 2
2nd 3		vin2b_vsync1	vout3_d17
2nd 4	vout3_clk	vout2_vsync	vout3_de
2nd 5	uart7_txd	emu9	uart7_rxd
2nd 6
2nd 7	timer15	uart9_txd	timer16
2nd 8	spi3_d1	spi4_d1	spi3_sclk
2nd 9	kbd_row1	kbd_row3	kbd_row0
2nd 10	eQEP1B_in	ehrpwm1A	eQEP1A_in
2nd 11		pr1_uart0_rts_n
2nd 12		pr1_edio_data_in4
2nd 13		pr1_edio_data_out4
2nd 14	gpio3_1	gpio4_0	gpio3_0
2nd 15	Driver off	Driver off	Driver off

Table 41 P8.36-P8.38

	P8.36	P8.37	P8.38
GPIO	234	232	233
BALL	D7	E8	D9
REG	0x1604	0x15FC	0x1600
MODE 0	vout1_d10	vout1_d8	vout1_d9
1
2	emu3	uart6_rxd	uart6_txd
3	vin4a_d10	vin4a_d8	vin4a_d9
4	vin3a_d10	vin3a_d8	vin3a_d9
5	obs5
6	obs21
7	obs_irq2
8
9
10	pr2_edio_sof	pr2_edc_sync1_out	pr2_edio_latch_in
11
12	pr2_pru0_gpi7	pr2_pru0_gpi5	pr2_pru0_gpi6
13	pr2_pru0_gpo7	pr2_pru0_gpo5	pr2_pru0_gpo6
14	gpio8_10	gpio8_8	gpio8_9
15	Driver off	Driver off	Driver off
2nd BALL	F2	A21	C18
2nd REG	0x1568	0x1738	0x1734
2nd MODE 0	vin2a_d0	mcasp4_fsx	mcasp4_aclkx
2nd 1		mcasp4_fsr	mcasp4_aclkr
2nd 2		spi3_d1	spi3_sclk
2nd 3		uart8_txd	uart8_rxd
2nd 4	vout2_d23	i2c4_scl	i2c4_sda
2nd 5	emu10
2nd 6		vout2_d17	vout2_d16
2nd 7	uart9_ctsn
2nd 8	spi4_d0	vin4a_d17	vin4a_d16
2nd 9	kbd_row4	vin5a_d14	vin5a_d15
2nd 10	ehrpwm1B
2nd 11	pr1_uart0_rxd
2nd 12	pr1_edio_data_in5
2nd 13	pr1_edio_data_out5
2nd 14	gpio4_1
2nd 15	Driver off	Driver off	Driver off

Table 42 P8.39-P8.41

	P8.39	P8.40	P8.41
GPIO	230	231	228
BALL	F8	E7	E9
REG	0x15F4	0x15F8	0x15EC
MODE 0	vout1_d6	vout1_d7	vout1_d4
1
2	emu8	emu9	emu6
3	vin4a_d22	vin4a_d23	vin4a_d20
4	vin3a_d22	vin3a_d23	vin3a_d20
5	obs4		obs2
6	obs20		obs18
7
8
9
10	pr2_edc_latch1_in	pr2_edc_sync0_out	pr1_ecap0_ecap_capin_apwm_o
11
12	pr2_pru0_gpi3	pr2_pru0_gpi4	pr2_pru0_gpi1
13	pr2_pru0_gpo3	pr2_pru0_gpo4	pr2_pru0_gpo1
14	gpio8_6	gpio8_7	gpio8_4
15	Driver off	Driver off	Driver off

Table 43 P8.42-P8.44

	P8.42	P8.43	P8.44
GPIO	229	226	227
BALL	F9	F10	G11
REG	0x15F0	0x15E4	0x15E8
MODE 0	vout1_d5	vout1_d2	vout1_d3
1
2	emu7	emu2	emu5
3	vin4a_d21	vin4a_d18	vin4a_d19
4	vin3a_d21	vin3a_d18	vin3a_d19
5	obs3	obs0	obs1
6	obs19	obs16	obs17
7		obs_irq1	obs_dmarq1
8
9
10	pr2_edc_latch0_in	pr1_uart0_rxd	pr1_uart0_txd
11
12	pr2_pru0_gpi2	pr2_pru1_gpi20	pr2_pru0_gpi0
13	pr2_pru0_gpo2	pr2_pru1_gpo20	pr2_pru0_gpo0
14	gpio8_5	gpio8_2	gpio8_3
15	Driver off	Driver off	Driver off

Table 44 P8.45-P8.46

	P8.45	P8.46
GPIO	224	225
BALL	F11	G10
REG	0x15DC	0x15E0
MODE 0	vout1_d0	vout1_d1
1
2	uart5_rxd	uart5_txd
3	vin4a_d16	vin4a_d17
4	vin3a_d16	vin3a_d17
5
6
7
8	spi3_cs2
9
10	pr1_uart0_cts_n	pr1_uart0_rts_n
11
12	pr2_pru1_gpi18	pr2_pru1_gpi19
13	pr2_pru1_gpo18	pr2_pru1_gpo19
14	gpio8_0	gpio8_1
15	Driver off	Driver off
2nd BALL	B7	A10
2nd REG	0x161C	0x1638
2nd MODE 0	vout1_d16	vout1_d23
2nd 1
2nd 2	uart7_rxd	emu19
2nd 3	vin4a_d0	vin4a_d7
2nd 4	vin3a_d0	vin3a_d7
2nd 5
2nd 6
2nd 7
2nd 8		spi3_cs3
2nd 9
2nd 10	pr2_edio_data_in0	pr2_edio_data_in7
2nd 11	pr2_edio_data_out0	pr2_edio_data_out7
2nd 12	pr2_pru0_gpi13	pr2_pru0_gpi20
2nd 13	pr2_pru0_gpo13	pr2_pru0_gpo20
2nd 14	gpio8_16	gpio8_23
2nd 15	Driver off	Driver off

Connector P9

The following tables show the pinout of the P9 expansion header. The SW is responsible for setting the default function of each pin. Refer to the processor documentation for more information on these pins and detailed descriptions of all of the pins listed. In some cases there may not be enough signals to complete a group of signals that may be required to implement a total interface.

The column heading is the pin number on the expansion header.

The GPIO row is the expected gpio identifier number in the Linux kernel.

The BALL row is the pin number on the processor.

The REG row is the offset of the control register for the processor pin.

The MODE # rows are the mode setting for each pin. Setting each mode to align with the mode column will give that function on that pin.

If included, the 2nd BALL row is the pin number on the processor for a second processor pin connected to the same pin on the expansion header. Similarly, all row headings starting with 2nd refer to data for this second processor pin.

NOTES:

DO NOT APPLY VOLTAGE TO ANY I/O PIN WHEN POWER IS NOT SUPPLIED TO THE BOARD. IT WILL DAMAGE THE PROCESSOR AND VOID THE WARRANTY.

NO PINS ARE TO BE DRIVEN UNTIL AFTER THE SYS_RESET LINE GOES HIGH.

In the table are the following notations:

PWR_BUT is a 5V level as pulled up internally by the TPS6590379. It is activated by pulling the signal to GND.

Table 45 P9.01-P9.05

P9.01	P9.02	P9.03	P9.04	P9.05
GND	GND	VOUT_3V3	VOUT_3V3	VIN

Table 46 P9.06-P9.10

P9.06	P9.07 | P9.08 | P9.09 | P9.10
VIN	VOUT_SYS	VOUT_SYS	RESET#	RESET#

Table 47 P9.11-P9.13

	P9.11	P9.12	P9.13
GPIO	241	128	172
BALL	B19	B14	C17
REG	0x172C	0x16AC	0x1730
MODE 0	mcasp3_axr0	mcasp1_aclkr	mcasp3_axr1
1		mcasp7_axr2
2	mcasp2_axr14		mcasp2_axr15
3	uart7_ctsn		uart7_rtsn
4	uart5_rxd		uart5_txd
5
6		vout2_d0
7	vin6a_d1		vin6a_d0
8		vin4a_d0
9			vin5a_fld0
10		i2c4_sda
11	pr2_mii1_rxer		pr2_mii1_rxlink
12	pr2_pru0_gpi14		pr2_pru0_gpi15
13	pr2_pru0_gpo14		pr2_pru0_gpo15
14		gpio5_0
15	Driver off	Driver off	Driver off
2nd BALL	B8		AB10**
2nd REG	0x1620		0x1680
2nd MODE 0	vout1_d17		usb1_drvvbus
2nd 1
2nd 2	uart7_txd
2nd 3	vin4a_d1
2nd 4	vin3a_d1
2nd 5
2nd 6
2nd 7			timer16
2nd 8
2nd 9
2nd 10	pr2_edio_data_in1
2nd 11	pr2_edio_data_out1
2nd 12	pr2_pru0_gpi14
2nd 13	pr2_pru0_gpo14
2nd 14	gpio8_17		gpio6_12
2nd 15	Driver off		Driver off

Table 48 P9.14-P9.16

	P9.14	P9.15	P9.16
GPIO	121	76	122
BALL	D6	AG4	C5
REG	0x15AC	0x1514	0x15B0
MODE 0	vin2a_d17	vin1a_d8	vin2a_d18
1		vin1b_d7
2	vin2b_d6		vin2b_d5
3	rgmii1_txd0		rgmii1_rxc
4	vout2_d6	vout3_d15	vout2_d5
5
6	vin3a_d9		vin3a_d10
7
8	mii1_txd2		mii1_txd3
9		kbd_row2
10	ehrpwm3A	eQEP2_index	ehrpwm3B
11	pr1_mii1_rxd2		pr1_mii1_rxd1
12	pr1_pru1_gpi14	pr1_pru0_gpi5	pr1_pru1_gpi15
13	pr1_pru1_gpo14	pr1_pru0_gpo5	pr1_pru1_gpo15
14	gpio4_25	gpio3_12	gpio4_26
15	Driver off	Driver off	Driver off

Table 49 P9.17-P9.19

	P9.17	P9.18	P9.19
GPIO	209	208	195
BALL	B24	G17	R6
REG	0x17CC	0x17C8	0x1440
MODE 0	spi2_cs0	spi2_d0	gpmc_a0
1	uart3_rtsn	uart3_ctsn
2	uart5_txd	uart5_rxd	vin3a_d16
3			vout3_d16
4			vin4a_d0
5
6			vin4b_d0
7			i2c4_scl
8			uart5_rxd
9
10
11
12
13
14	gpio7_17	gpio7_16	gpio7_3
15	Driver off	Driver off	Driver off
2nd BALL	F12	G12	F4
2nd REG	0x16B8	0x16B4	0x157C
2nd MODE 0	mcasp1_axr1	mcasp1_axr0	vin2a_d5
2nd 1
2nd 2
2nd 3	uart6_txd	uart6_rxd
2nd 4			vout2_d18
2nd 5			emu15
2nd 6
2nd 7	vin6a_hsync0	vin6a_vsync0
2nd 8			uart10_rtsn
2nd 9			kbd_col2
2nd 10	i2c5_scl	i2c5_sda	eQEP2A_in
2nd 11	pr2_mii_mt0_clk	pr2_mii0_rxer	pr1_edio_sof
2nd 12	pr2_pru1_gpi9	pr2_pru1_gpi8	pr1_pru1_gpi2
2nd 13	pr2_pru1_gpo9	pr2_pru1_gpo8	pr1_pru1_gpo2
2nd 14	gpio5_3	gpio5_2	gpio4_6
2nd 15	Driver off	Driver off	Driver off

Table 50 P9.20-P9.22

	P9.20	P9.21	P9.22
GPIO	196	67	179
BALL	T9	AF8	B26
REG	0x1444	0x14F0	0x169C
MODE 0	gpmc_a1	vin1a_vsync0	xref_clk2
1		vin1b_de1	mcasp2_axr10
2	vin3a_d17		mcasp1_axr6
3	vout3_d17		mcasp3_ahclkx
4	vin4a_d1	vout3_vsync	mcasp7_ahclkx
5		uart7_rtsn
6	vin4b_d1		vout2_clk
7	i2c4_sda	timer13
8	uart5_txd	spi3_cs0	vin4a_clk0
9
10		eQEP1_strobe	timer15
11
12
13
14	gpio7_4	gpio3_3	gpio6_19
15	Driver off	Driver off	Driver off
2nd BALL	D2	B22	A26
2nd REG	0x1578	0x17C4	0x17C0
2nd MODE 0	vin2a_d4	spi2_d1	spi2_sclk
2nd 1		uart3_txd	uart3_rxd
2nd 2
2nd 3
2nd 4	vout2_d19
2nd 5	emu14
2nd 6
2nd 7
2nd 8	uart10_ctsn
2nd 9	kbd_col1
2nd 10	ehrpwm1_synco
2nd 11	pr1_edc_sync0_out
2nd 12	pr1_pru1_gpi1
2nd 13	pr1_pru1_gpo1
2nd 14	gpio4_5	gpio7_15	gpio7_14
2nd 15	Driver off	Driver off	Driver off

Table 51 P9.23-P9.25

	P9.23	P9.24	P9.25
GPIO	203	175	177
BALL	A22	F20	D18
REG	0x17B4	0x168C	0x1694
MODE 0	spi1_cs1	gpio6_15	xref_clk0
1		mcasp1_axr9	mcasp2_axr8
2	sata1_led	dcan2_rx	mcasp1_axr4
3	spi2_cs1	uart10_txd	mcasp1_ahclkx
4			mcasp5_ahclkx
5
6		vout2_vsync
7			vin6a_d0
8		vin4a_vsync0	hdq0
9		i2c3_scl	clkout2
10		timer2	timer13
11			pr2_mii1_col
12			pr2_pru1_gpi5
13			pr2_pru1_gpo5
14	gpio7_11	gpio6_15	gpio6_17
15	Driver off	Driver off	Driver off

Table 52 P9.26-P9.29

	P9.26	P9.27	P9.28	P9.29
GPIO	174	111	113	139
BALL	E21	C3	A12	A11
REG	0x1688	0x15A0	0x16E0	0x16D8
MODE 0	gpio6_14	vin2a_d14	mcasp1_axr11	mcasp1_axr9
1	mcasp1_axr8		mcasp6_fsx	mcasp6_axr1
2	dcan2_tx		mcasp6_fsr
3	uart10_rxd	rgmii1_txd3	spi3_cs0	spi3_d1
4		vout2_d9
5
6	vout2_hsync
7			vin6a_d12	vin6a_d14
8	vin4a_hsync0	mii1_txclk
9	i2c3_sda
10	timer1	eQEP3B_in	timer8	timer6
11		pr1_mii_mr1_clk	pr2_mii0_txd1	pr2_mii0_txd3
12		pr1_pru1_gpi11	pr2_pru1_gpi13	pr2_pru1_gpi11
13		pr1_pru1_gpo11	pr2_pru1_gpo13	pr2_pru1_gpo11
14	gpio6_14	gpio4_15	gpio4_17	gpio5_11
15	Driver off	Driver off	Driver off	Driver off
2nd BALL	AE2	J14		D14
2nd REG	0x1544	0x16B0		0x16A8
2nd MODE 0	vin1a_d20	mcasp1_fsr		mcasp1_fsx
2nd 1	vin1b_d3	mcasp7_axr3
2nd 2
2nd 3
2nd 4	vout3_d3
2nd 5
2nd 6	vin3a_d4	vout2_d1
2nd 7				vin6a_de0
2nd 8		vin4a_d1
2nd 9	kbd_col5
2nd 10	pr1_edio_data_in4	i2c4_scl		i2c3_scl
2nd 11	pr1_edio_data_out4			pr2_mdio_data
2nd 12	pr1_pru0_gpi17
2nd 13	pr1_pru0_gpo17
2nd 14	gpio3_24	gpio5_1		gpio7_30
2nd 15	Driver off	Driver off		Driveroff

Table 53 P9.30-P9.31

	P9.30	P9.31
GPIO	140	138
BALL	B13	B12
REG	0x16DC	0x16D4
MODE 0	mcasp1_axr10	mcasp1_axr8
1	mcasp6_aclkx	mcasp6_axr0
2	mcasp6_aclkr
3	spi3_d0	spi3_sclk
4
5
6
7	vin6a_d13	vin6a_d15
8
9
10	timer7	timer5
11	pr2_mii0_txd2	pr2_mii0_txen
12	pr2_pru1_gpi12	pr2_pru1_gpi10
13	pr2_pru1_gpo12	pr2_pru1_gpo10
14	gpio5_12	gpio5_10
15	Driver off	Driver off
2nd BALL		C14
2nd REG		0x16A4
2nd MODE 0		mcasp1_aclkx
2nd 1
2nd 2
2nd 3
2nd 4
2nd 5
2nd 6
2nd 7		vin6a_fld0
2nd 8
2nd 9
2nd 10		i2c3_sda
2nd 11		pr2_mdio_mdclk
2nd 12		pr2_pru1_gpi7
2nd 13		pr2_pru1_gpo7
2nd 14		gpio7_31
2nd 15		Driver off

Table 54 P9.32-P9.40

	P9.32	P9.33	P9.34	P9.35	P9.36	P9.37	P9.38	P9.39	P9.40
Row 1	P9.32	P9.33	P9.34	P9.35	P9.36	P9.37	P9.38	P9.39	P9.40

Table 55 P9.41-P9.42

	P9.41	P9.42
GPIO	180	114
BALL	C23	E14
REG	0x16A0	0x16E4
MODE 0	xref_clk3	mcasp1_axr12
1	mcasp2_axr11	mcasp7_axr0
2	mcasp1_axr7
3	mcasp4_ahclkx	spi3_cs1
4	mcasp8_ahclkx
5
6	vout2_de
7	hdq0	vin6a_d11
8	vin4a_de0
9	clkout3
10	timer16	timer9
11		pr2_mii0_txd0
12		pr2_pru1_gpi14
13		pr2_pru1_gpo14
14	gpio6_20	gpio4_18
15	Driver off	Driver off
2nd BALL	C1	C2
2nd REG	0x1580	0x159C
2nd MODE 0	vin2a_d6	vin2a_d13
2nd 1
2nd 2
2nd 3		rgmii1_txctl
2nd 4	vout2_d17	vout2_d10
2nd 5	emu16
2nd 6
2nd 7
2nd 8	mii1_rxd1	mii1_rxdv
2nd 9	kbd_col3	kbd_row8
2nd 10	eQEP2B_in	eQEP3A_in
2nd 11	pr1_mii_mt1_clk	pr1_mii1_txd0
2nd 12	pr1_pru1_gpi3	pr1_pru1_gpi10
2nd 13	pr1_pru1_gpo3	pr1_pru1_gpo10
2nd 14	gpio4_7	gpio4_14
2nd 15	Driver off	Driver off

Table 56 P9.43-P9.46

	P9.43	P9.44	P9.45	P9.46
Row 1	P9.43	P9.44	P9.45	P9.46

Serial Debug

USB 3 Type-C

USB 2 Type-A

Gigabit Ethernet

Coaxial

microSD Memory

microHDMI

Cape Board Support

There is a Cape Headers Google Spreadsheet which has a lot of detail regarding various boards and cape add-on boards.

See also BeagleBone cape interface spec

BeagleBone® Black Cape Compatibility

See BeagleBone cape interface spec for now.

EEPROM

Pin Usage Consideration

GPIO

I2C

UART or PRU UART

This section is about both UART pins on the header and PRU UART pins on the headers we will include a chart and later some code

Table 57 UART

Function	Pin	ABC Ball	Pinctrl Register	Mode
uart3_txd	P9.21	B22	0x17C4	1
uart3_rxd	P9.22	A26	0x17C0	1
uart5_txd	P9.13	C17	0x1730	4
uart5_rxd	P9.11	B19	0x172C	4
uart5_ctsn	P8.05	AC9	0x178C	2
uart5_rtsn	P8.06	AC3	0x1790	2
uart8_txd	P8.37	A21	0x1738	3
uart8_rxd	P8.38	C18	0x1734	3
uart8_ctsn	P8.31	G16	0x173C	3
uart8_rtsn	P8.32	D17	0x1740	3
uart10_txd	P9.24	F20	0x168C	3
uart10_rxd	P9.26	E21	0x1688	3
uart10_ctsn	P8.03	AB8	0x179C	2
uart10_rtsn	P8.04	AB5	0x17A0	2
uart10_txd	P9.24	F20	0x168C	3
uart10_rxd	P9.26	E21	0x1688	3
uart10_ctsn	P9.20	D2	0x1578	8
uart10_rtsn	P9.19	F4	0x157C	8

Table 58 PRU UART

Function	Pin	ABC Ball	Pinctrl Register	Mode
pr2_uart0_txd	P8.31	C8	0x1614	10
pr2_uart0_rxd	P8.33	C6	0x1610	10
pr2_uart0_cts_n	P8.34	D8	0x1608	10
pr2_uart0_rts_n	P8.35	A5	0x160C	10
pr1_uart0_rxd	P8.43	F10	0x15E4	10
pr1_uart0_txd	P8.44	G11	0x15E8	10
pr1_uart0_cts_n	P8.45	F11	0x15DC	10
pr1_uart0_rts_n	P8.46	G10	0x15E0	10

SPI

Analog

PWM, TIMER, eCAP or PRU PWM/eCAP

eQEP

CAN

McASP (audio serial like I2S and AC97)

MMC

LCD

PRU GPIO

CLKOUT

Expansion Connector Headers

Signal Usage

Cape Power

Mechanical