Hardware Interface Description

Chip block diagram

Radxa CM3I IO Baseboard Block Diagram

Interface Preview

CM3I Core Board

CM3I IO Board

Interface details

CM3I Core Board

AP6256

Pin	Name	Pin	Name
1	GND	2	GND
3	GND	4	NOT CONNECTED
5	NOT CONNECTED	6	HOST_WAKE_BT_H_GPIO4_B5
7	BT_WAKE_HOST_H_GPIO4_B4	8	NOT CONNECTED
9	VCC_3V3_1	10	WIFI1T1R_XTAL_IN
11	WIFI1T1R_XTAL_OUT	12	WIFI_REG_ON_H_GPIO3_D4
13	WIFI_WAKE_HOST_H_GPIO3_D5	14	SDMMC2_D2_M0
15	SDMMC2_D3_M0	16	SDMMC2_CMD_M0
17	SDMMC2_CLK_M0	18	SDMMC2_D0_M0
19	SDMMC2_D1_M0	20	GND
21	GND	22	VCC_3V3
23	GND	24	WIFIBT_32KIN_1T1R
25	NOT CONNECTED	26	NOT CONNECTED
27	NOT CONNECTED	28	NOT CONNECTED
29	GND	30	NOT CONNECTED
31	GND	32	NOT CONNECTED
33	GND	34	BT_REG_ON_H_GPIO4_B2
35	NOT CONNECTED	36	GND
37	NOT CONNECTED	38	NOT CONNECTED
39	NOT CONNECTED	40	NOT CONNECTED
41	UART8_CTS_M0	42	UART8_RX_M0
43	UART8_TX_M0	44	UART8_RTS_M0
35	NOT CONNECTED	46	NOT CONNECTED
47	NOT CONNECTED	40

On Board eMMC

Pin	Name	Pin	Name
1	eMMC_D0/FLASH_D0	2	VCCIO_FLASH
3	eMMC_D1/FLASH_D1	4	VCCIO_FLASH
5	eMMC_D2/FLASH_D2	6	VCCIO_FLASH
7	eMMC_D3/FLASH_D3	8	VCCIO_FLASH
9	eMMC_D4/FLASH_D4	10	VCCIO_FLASH
11	eMMC_D5/FLASH_D5	12	VCC_3V3
13	eMMC_D6/FLASH_D6	14	VCC_3V3
15	eMMC_D7/FLASH_D7	16	VCC_3V3
17	eMMC_CMD/FLASH_WRn	18	VCC_3V3
19	eMMC_CLKOUT/FLASH_DQS	20	GND
21	VCCIO_FLASH	22	GND
23	GND	24	GND
25	eMMC_DATA_STROBE	26	GND
27	NOT CONNECTED	28	GND
29	NOT CONNECTED	30	GND
31	NOT CONNECTED	32	GND
33	NOT CONNECTED	34	GND
35		36	GND
37		38	GND
39		40	GND
41		42	GND

SPI Flash

Pin	Name	Pin	Name
1	FSPI_CS0n/FLASH_CS0n	2	FSPI_D1/FLASH_RDn
3	eMMC_RSTn/FSPI_D2/FLASH_WPn	4	GND
5	FSPI_D0/FLASH_RDY	6	FSPI_CLK/FLASH_ALE
7	FSPI_D3/FLASH_CS1n	8	VCCIO_FLASH

Gigabit Ethernet PHY

Pin	Name	Pin	Name
1	AVDD33	2	PHY_MDI0+
3	PHY_MDI0-	4	AVDD10
5	PHY_MDI1+	6	PHY_MDI1-
7	PHY_MDI2+	8	PHY_MDI2-
9	AVDD10	10	PHY_MDI3+
11	PHY_MDI3-	12	AVDD33
13	GMAC1_RSTn_GPIO3_B0	14	GMAC1_MDC_M1
15	GMAC1_MDIO_M1	16	GMAC1_TXD3_M1
17	GMAC1_TXD2_M1	18	GMAC1_TXD1_M1
19	GMAC1_TXD0_M1	20	GMAC1_TXEN_M1
21	GMAC1_TXCLK_M1	22	DVDD10
23	GMAC1_RXD3_M1	24	GMAC1_RXD2_M1
25	GMAC1_RXD1_M1	26	GMAC1_RXD0_M1
27	GMAC1_RXDV_CRS_M1	28	GMAC1_RXCLK_M1
29	DVDDRG	30	DVDD33
31	DVDD33	32	REGOUT
33	PTP_CLKIN_1	34	GMAC1_INT/PMEB_GPIO3_A7
35	LED0/PHYAD0	36	LED1/CFG_LDO0
37	LED2/CFG_LDO1	38	HSIP
39	HSIN	40	HSOP_1
41	HSON_1	42	HSOP_CLK_1
43	HSON_CLK_1	44	PHY_CLKOUT125
45	XTAL_IN	46	XTAL_OUT
47	AVDD10	48	RSET
49	GND

400-PIN Definition

• V1310 pinout

CM3I IO Board

CAN

Pin	Name	Pin	Name
1	CANH	2	CANL
3	CAN_VSS	4

EDP

Pin	Name	Pin	Name
1		2	GND
3	EDP_TX_D3N	4	EDP_TX_D3P
5	GND	6	EDP_TX_D2N
7	EDP_TX_D2P	8	GND
9	EDP_TX_D1N	10	EDP_TX_D1P
11	GND	12	EDP_TX_D0N
13	EDP_TX_D0P	14	GND
15	EDP_TX_AUXP	16	EDP_TX_AUXN
17	GND	18	VCC_LCD
19	VCC_LCD	20	VCC_LCD
21	VCC_LCD	22
23	GND	24	GND
25	GND	26	GND
27	EDP_HPD_1	28	GND
29	GND	30	GND
31	GND	32	LCD-EN
33	LCD-PWM	34
35		36	VCC5V_P
37	VCC5V_P	38	VCC5V_P
39	VCC5V_P	40
41		42
43	GND	44	GND

HDMI

Pin	Name	Pin	Name
1	HDMI_TX2P_PORT	2	GND
3	HDMI_TX2N_PORT	4	HDMI_TX1P_PORT
5	GND	6	HDMI_TX1N_PORT
7	HDMI_TX0P_PORT	8	GND
9	HDMI_TX0N_PORT	10	HDMI_TXCLKP_PORT
11	GND	12	HDMI_TXCLKN_PORT
13	HDMI_TX_CEC_PORT	14	GND
15	HDMI_TXDDC_SCL_PORT	16	HDMI_TXDDC_SDA_PORT
17	GND	18	+5V_INPUT
19	HDMI_TX_HPD_PORT	20	GND
21	GND	22	GND
23	GND	24

Micro SD Slot

Pin	Name	Pin	Name
1	SDMMC0_D2/ARMJTAG_TCK	2	SDMMC0_D3/ARMJTAG_TMS
3	SDMMC0_CMD	4	VCC3V3_SD_1
5	SDMMC0_CLK	6	GND
7	SDMMC0_D0	8	SDMMC0_D1
9	SDMMC0_DET_L	10	GND
11	GND	12	GND
13	GND	14

MIPI CSI

• CAMERA_1

  Pin	Name	Pin	Name
  1	VCC3V3_SYS	2	I2C0_SDA_PMIC
  3	I2C0_SCL_PMIC	4	CAM_CLK_0
  5	CAM_GPIO	6	GND
  7	MIPI_CSI_RX_CLK0P	8	MIPI_CSI_RX_CLK0N
  9	GND	10	MIPI_CSI_RX_D1P
  11	MIPI_CSI_RX_D1N	12	GND
  13	MIPI_CSI_RX_D0P	14	MIPI_CSI_RX_D0N
  15	GND	16	NOT CONNECTED
  17	NOT CONNECTED	18	NOT CONNECTED
  19	NOT CONNECTED	20	NOT CONNECTED
  21	NOT CONNECTED	22	NOT CONNECTED
  23	NOT CONNECTED	24	NOT CONNECTED
  25	NOT CONNECTED	26	NOT CONNECTED
  27	NOT CONNECTED	28	NOT CONNECTED
  29	NOT CONNECTED	30	NOT CONNECTED

• CAMERA_2

  Pin	Name	Pin	Name
  1	VCC3V3_SYS	2	I2C5_SDA_M0
  3	I2C5_SCL_M0	4	CAM_CLK_1
  5	CAM_GPIO_1	6	GND
  7	MIPI_CSI_RX_CLK1P	8	MIPI_CSI_RX_CLK1N
  9	GND	10	MIPI_CSI_RX_D3P
  11	MIPI_CSI_RX_D3N	12	GND
  13	MIPI_CSI_RX_D2P	14	MIPI_CSI_RX_D2N
  15	GND	16	NOT CONNECTED
  17	NOT CONNECTED	18	NOT CONNECTED
  19	NOT CONNECTED	20	NOT CONNECTED
  21	NOT CONNECTED	22	NOT CONNECTED
  23	NOT CONNECTED	24	NOT CONNECTED
  25	NOT CONNECTED	26	NOT CONNECTED
  27	NOT CONNECTED	28	NOT CONNECTED
  29	NOT CONNECTED	30	NOT CONNECTED

MIPI DSI

Pin	Name	Pin	Name
1	VCC_LCD_MIPI	2	+1V8
3		4	LCD_RESET_1
5		6	GND
7	MIPI_DSI_TX0_D0N/LVDS_TX0_D0N	8	MIPI_DSI_TX0_D0P/LVDS_TX0_D0P
9		10	MIPI_DSI_TX0_D1N/LVDS_TX0_D1N
11	MIPI_DSI_TX0_D1P/LVDS_TX0_D1P	12	GND
13	MIPI_DSI_TX0_CLKN/LVDS_TX0_CLKN	14	MIPI_DSI_TX0_CLKP/LVDS_TX0_CLKP
15		16	MIPI_DSI_TX0_D2N/LVDS_TX0_D2N
17	MIPI_DSI_TX0_D2P/LVDS_TX0_D2P	18	GND
19	MIPI_DSI_TX0_D3N/LVDS_TX0_D3N	20	MIPI_DSI_TX0_D3P/LVDS_TX0_D3P
21	GND	22	GND
23	TP_RST_LCD	24	3V3_TP
25	TP_INT_LCD	26	TP_SDA_LCD
27	TP_SCL_LCD	28	GND
29	GND	30	VCC_LCD_MIPI
31	VCC_LCD_MIPI	32	GND
33	GND	34	VCC_LEDK1
35	VCC_LEDK1	36	GND
37	GND	38	VCC_LEDA1
39	VCC_LEDA1	40	GND

PCIe

• PCIe B Key

  Pin	Name	Pin	Name
  1	NOT CONNECTED	2	3V3_BKEY
  3	GND	4	3V3_BKEY
  5	GND	6	4G_PWREN_H
  7	USB3_HOST1_DP	8	4G_DISABLE
  9	USB3_HOST1_DM	10	NOT CONNECTED
  11	GND	12
  13		14
  15		16
  17		18
  19		20	NOT CONNECTED
  21	GND	22	NOT CONNECTED
  23	4G_WAKE_ON_HOST	24	NOT CONNECTED
  25		26	W_DISABLE
  27	GND	28	NOT CONNECTED
  29	USB3_HOST1_SSTXN	30	SIM1_RESET
  31	USB3_HOST1_SSTXP	32	SIM1_CLK
  33	GND	34	SIM1_DATA
  35	USB3_HOST1_SSRXN	36	SIM1_PWR
  37	USB3_HOST1_SSRXP	38	NOT CONNECTED
  39	GND	40	NOT CONNECTED
  41	PCIE20_RXN_1	42	NOT CONNECTED
  43	PCIE20_RXP_1	44	NOT CONNECTED
  45	GND	46	NOT CONNECTED
  47	PCIE20_TXN_1	48	NOT CONNECTED
  49	PCIE20_TXP_1	50	PCIE20-PERSTN
  51	GND	52	PCIE20-CLKREQN
  53	PCIE20_REFCLKN	54	PCIE20-WAKEN
  55	PCIE20_REFCLKP	56	NOT CONNECTED
  57	GND	58	NOT CONNECTED
  59	NOT CONNECTED	60	NOT CONNECTED
  61	NOT CONNECTED	62	NOT CONNECTED
  63	NOT CONNECTED	64	NOT CONNECTED
  65	NOT CONNECTED	66	SIM1_DET
  67	4G_RESET	68	NOT CONNECTED
  69	GND	70	3V3_BKEY
  71	GND	72	3V3_BKEY
  73	GND	74	3V3_BKEY
  75	GND	76	GND
  77	GND	78	GND

• PCIe M Key

  Pin	Name	Pin	Name
  1	GND	2	VCC3V3_MKEY
  3	GND	4	VCC3V3_MKEY
  5	NOT CONNECTED	6	NOT CONNECTED
  7	NOT CONNECTED	8	NOT CONNECTED
  9	GND	10	NOT CONNECTED
  11	NOT CONNECTED	12	VCC3V3_MKEY
  13	NOT CONNECTED	14	VCC3V3_MKEY
  15	GND	16	VCC3V3_MKEY
  17	NOT CONNECTED	18	VCC3V3_MKEY
  19	NOT CONNECTED	20	NOT CONNECTED
  21	GND	22	NOT CONNECTED
  23	NOT CONNECTED	24	NOT CONNECTED
  25	NOT CONNECTED	26	NOT CONNECTED
  27	GND	28	NOT CONNECTED
  29	NOT CONNECTED	30	NOT CONNECTED
  31	NOT CONNECTED	32	NOT CONNECTED
  33	GND	34	NOT CONNECTED
  35	NOT CONNECTED	36	NOT CONNECTED
  37	NOT CONNECTED	38	NOT CONNECTED
  39	GND	40	NOT CONNECTED
  41	PCIE30_RX0N	42	NOT CONNECTED
  43	PCIE30_RX0P	44	NOT CONNECTED
  45		46	NOT CONNECTED
  47	PCIE30_TX0N	48	NOT CONNECTED
  49	PCIE30_TX0P	50	PCIE30X2_PERSTn_M1
  51	GND	52	PCIE30X2_CLKREQn_M1
  53	PCIE30_REFCLKN_MKEY	54	PCIE30X2_WAKEn_M1
  55	PCIE30_REFCLKP_MKEY	56	NOT CONNECTED
  57		58	NOT CONNECTED
  59		60
  61		62
  63		64
  65		66
  67	NOT CONNECTED	68	NOT CONNECTED
  69	NOT CONNECTED	70	VCC3V3_MKEY
  71	GND	72	VCC3V3_MKEY
  73	GND	74	VCC3V3_MKEY
  75	GND	76	GND
  77	GND	78	GND

POE 12V

Pin	Name	Pin	Name
1	IN_VIN+	2	VIN_GND
3	AT-DET	4
5		6
7	GND	8	POE_12V
9	ADJ	10	GND

RTC

Pin	Name	Pin	Name
1	GND	2	GND
3	PMIC_RESET_KEY	4	GND
5	I2C1_SDA	6	I2C1_SCL
7	VCC3V3_SYS	8	GND

SATA

Pin	Name	Pin	Name
1	GND	2	SATA1_TXP
3	SATA1_TXN	4	GND
5	SATA1_RXN	6	SATA1_RXP
7	GND	8	SATA_7P_H_SMD
9	GND	10

Sim Slot

Pin	Name	Pin	Name
1	GND	2	GND
3	GND	4	GND
5	SIM1_PWR	6	GND
7	SIM1_RESET	8	GND
9	SIM1_CLK	10	SIM1_DATA
11	SIM1_DET	12

RS232

Pin	Name	Pin	Name
1	GND	2	TX
3	RX	4

RS485

Pin	Name	Pin	Name
1	GND	2	RS485_A
3	RS485_B	4	GND

USB

• USB2.0

  Pin	Name	Pin	Name
  1	VCC5V0_USB	2	USB2_HOST2_DM
  3	USB2_HOST2_DP	4	GND
  5	GND	6

• USB3.0

  Pin	Name	Pin	Name
  1	5V0_USB30	2	USB_OTG0_DM
  3	USB_OTG0_DP	4	GND
  5	USB3_OTG0_SSRXN	6	USB3_OTG0_SSRXP
  7	GND	8	USB3_OTG0_SSTXN
  9	USB3_OTG0_SSTXP	10	GND
  11	GND	12

14 Pin Headers

Pin	Name	Pin	Name
1	UART2_RX	2	GND
3	UART2_TX	4	HPL_OUT
5	GND	6	HP_SNS
7	SARADC_VIN0_KEY/RECOVERY	8	HPR_OUT
9	SPKN_OUT	10	HP_DET_L
11	SPKP_OUT	12	SARADC_VIN2_HP_HOOK
13	MIC1_INN	14	MIC1_INP