SCM-i.MX6

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This document shows the documentation for the SCM-i.MX 6Q Rhomb.io core. Preliminary version, use only for data updating or corrections.

Overview

The SCM-i.MX6Q is a Rhomb.io core module based on the Single Chip Module featuring Freescale's i.MX6Q, also known as SCM-i.MX6Q. This thin and small board, is easily pluggable on the standard Rhomb.io core sockets and has been designed as to be the brain of your modular system. It mainly accomplishes two different roles: power supply management and computing. The SCM-i.MX6 core is capable of managing the input power in order to accommodate it according to the Rhomb.io standard specifications.

This board sports a small but mighty 14mm x 17mm SCM-i.MX 6Q, built using proven NXP® technology, including the i.MX 6Q applications processor and MMPF0100 power management system. The addition of integrated flash memory and over a hundred passive system components is critical to provide a robust board design, and enables an overall design that is up to 50% smaller vs. a discrete implementation.

The i.MX 6 Quad Applications Processor embedded in this SoC is based on ARM® Cortex®-A9 MPCore platform, and some of its features are a ARM Cortex-A9 MPCore 4-cpu processor with with TrustZone®, each core having 3s Kbyte L1 Instruction and Data Cache, a Private Timer and Watchdo and a Cortex-A9 NEON Media Processing Engine Co-Processor.

Two options for the SCM-i.MX6 Rhomb.io core are available. The only difference in between them is the size of the RAM: 1GB or 2GB, using in both cases LPDDR2 memory.

The next table summarizes the main features of the Rhomb.io SCM-i.MX6Q core.

SCM-i.MX6Q core features
ARM Cortex A-9 quad-core CPU, 32 bit
1GB or 2GB LPDDR2 RAM
Operating frequency up to 800 MHz
NEON SIMD Media Processing Engine
Off board program and storage memory
Max input voltage 6V
100% Rhomb.io standard v4.2 compatible

Core specifications

The SCM-i.MX 6Q core is the second to arrive to the Rhomb.io platform. It integrates a Freescale SCM-i.MX 6Q SoC, -which has a PF0100 PMIC and RAM memory embedded itself- a PMIC, a USB Hub and an auxiliary ATtiny microcontroller in a small board that measures 45x27x3mm. In addition to these components, the Block Diagram also shows that, among other auxiliary components, the board has eight tiny connectors named from J1 to J8, all those components assembled in order to accomplish the standard for the Rhomb.io modular open hardware platform. Those male connectors are intended to drive all the signals coming from the SoC, PMIC, and the Hub, to a Rhomb.io motherboard such as the Gaia or the Hyperion boards. Look at the "Connections" section to see which signals are available on the connectors.

[Se debe indicar con más profundidad las capacidades de la placa. Para ello, basarse en el diagrama de bloques. Indicar qué componentes componen el core (PMIC, SoC, Hub, RAM, shield, etc) y hacer una descripción detallada, sobre todo de sus características. Indicar consumos máximos]

The next figure identifies among others the SCM-i.MX 6Q, an ARM SoC of recent creation that intend s to be used in consumer electronics products such as tablets and smartphones. It includes a quad-core processor based on the Cortex-A9 architecture with a maximum clock speed of 800 MHz with 1MB of L2-cache memory. The SoC incorporates the following hardware accelerators: VPU, IPUv3H, GPU3Dv4, GPU2Dv2, GPUVG and ASRC. Videos can be 1080p30 encoded/decoded. The RAM is assembled Package on Package (PoP), so two options for the RAM are available: 1GB or 2GB. In both cases the memory is LPDDR2.

A complete Power Management IC (PMIC) is used on the SCM-i.MX 6Q core in order to provide power supply not only to the SoC, but also to the entire Rhomb.io modular system. The MAX77686 is in charge of this behalf. This IC is designed for the latest consumer electronics devices such as smartphones, and contains nine efficient buck converters, 26 LDOs and a Real Time Clock (RTC). The linear regulators provide greater than 60db PSRR and less than 45uV of output noise. This IC is managed by the SoC trough I2C and is configured according to the system requirements.

The left image on the "Overview" section shows the SCM-i.MX 6Q core assembled with a shield. This shielding has been implemented in order to reduce the electromagnetic perturbations bearing in mind the normative regarding Electromagnetic Interference (EMI).

Connectors

The following table indicates the pinout of each one of the eight connectors. It has been grouped the signals according to its functionality and according to the Rhomb.io standard v4.2. Each pin on the connector supports a maximum of 300mA.

J1 connector
Pin Nº	Pin name	IC Signal	Description	Pin Nº	Pin name	IC Signal	Description
1	GND	GND	Connected to GND	26	GND	GND	Connected to GND
2				27	VIDEO_VD15	ipu1.IPU1_DISP0_DATA15	RGB Video Output or GPIO
3	VIDEO_VD16	ipu1.IPU1_DISP0_DATA16	RGB Video Output or GPIO	28	VIDEO_VD00	ipu1.IPU1_DISP0_DATA00
4	VIDEO_VD22	ipu1.IPU1_DISP0_DATA22		29	VIDEO_CLK	ipu1.IPU1_DI0_DISP_CLK
5	VIDEO_VD13	ipu1.IPU1_DISP0_DATA13		30	VIDEO_VD18	ipu1.IPU1_DISP0_DATA18
6	VIDEO_VD01	ipu1.IPU1_DISP0_DATA01		31	VIDEO_SYS_OE	ipu1.IPU1_DI0_PIN04
7	VIDEO_VD04	ipu1.IPU1_DISP0_DATA04		32	VIDEO_VD11	ipu1.IPU1_DISP0_DATA11
8	VIDEO_VD09	ipu1.IPU1_DISP0_DATA09		33	VIDEO_VSYNC	ipu1.IPU1_DI0_PIN03
9	VIDEO_VSYNC_LDI	ipu1.IPU1_CSI0_VSYNC		34	VIDEO_VD06	ipu1.IPU1_DISP0_DATA06
10	VIDEO_VD23	ipu1.IPU1_DISP0_DATA23		35	VIDEO_HSYNC	ipu1.IPU1_DI0_PIN02
11	VIDEO_VD14	ipu1.IPU1_DISP0_DATA14		36	VIDEO_VD12	ipu1.IPU1_DISP0_DATA12
12	GND	GND	Connected to GND	37	VIDEO_VD03	ipu1.IPU1_DISP0_DATA03
13				38	VIDEO_VD17	ipu1.IPU1_DISP0_DATA17
14	VIDEO_VD05	ipu1.IPU1_DISP0_DATA05	RGB Video Output or GPIO	39	SLIMBUS_CLK	NOT AVAILABLE	Slimbus port
15	VIDEO_VD10	ipu1.IPU1_DISP0_DATA10		40	SLIMBUS_DATA	NOT AVAILABLE
16	VIDEO_EN	ipu1.IPU1_DI0_PIN15		41	GND	GND	Connected to GND
17	VIDEO_VD20	ipu1.IPU1_DISP0_DATA20		42	HDMI_D2_P	hdmi.HDMI_TX_DATA2_P	HDMI Data
18	VIDEO_VD07	ipu1.IPU1_DISP0_DATA07		43	HDMI_D2_N	hdmi.HDMI_TX_DATA2_N
19	VIDEO_VD08	ipu1.IPU1_DISP0_DATA08		44	HDMI_D1_P	hdmi.HDMI_TX_DATA1_P
20	VIDEO_VD02	ipu1.IPU1_DISP0_DATA02		45	HDMI_D1_N	hdmi.HDMI_TX_DATA1_N
21	VIDEO_VD21	ipu1.IPU1_DISP0_DATA21		46	HDMI_D0_P	hdmi.HDMI_TX_DATA0_P
22	VIDEO_VD19	ipu1.IPU1_DISP0_DATA19		47	HDMI_D0_N	hdmi.HDMI_TX_DATA0_N
23	LDO04_2V8_150mA	OUT4	PMIC LDO4 output	48	HDMI_CLK_P	hdmi.HDMI_TX_CLK_P
24	LDO05_1V8_150mA	OUT5	PMIC LDO5 output	49	HDMI_CLK_N	hdmi.HDMI_TX_CLK_N
25	GND	GND	Connected to GND	50	GND	GND	Connected to GND
J2 connector
Pin Nº	Pin name	IC Signal	Description	Pin Nº	Pin name	IC Signal	Description
1	GND	GND	Connected to GND	26	GND	GND	Connected to GND
2	CAN_TX	flexcan1.FLEXCAN1_TX	CAN interface	27	UART2_RTSN	uart4.UART4_RTS_B	UART 2 interface
3	CAN_RX	flexcan1.FLEXCAN1_RX		28	SPI0_CSN	ecspi1.ECSPI1_SS0	SPI 0 interface
4	I2S_SCLK	audmux.AUD5_TXC	I2S interface	29	UART0_TXD	uart1.UART1_TX_DATA	UART 0 interface
5	RFU		Does not fit the standard	30	PWM_OUT0	pwm1.PWM1_OUT	PWM 0 output
6	I2S.TXFS	audmux.AUD5_TXFS		31	SPI1_CLK	ecspi2.ECSPI2_SCLK	SPI 1 interface
7	I2S_LRCK	audmux.AUD5_RXFS	I2S interface	32	PWM_OUT1	pwm3.PWM3_OUT	PWM 1 output
8	I2S_CDCLK	audmux.AUD5_RXC		33	UART3_RXD	uart5.UART5_RX_DATA	UART 3 interface
9	I2S_SDO	audmux.AUD5_TXD		34	I2C0_SCL	i2c1.I2C1_SCL	I2C 0 interface
10	I2S_SDI	audmux.AUD5_RXD		35	GND	GND	Connected to GND
11	I2C1_SCL	hdmi.HDMI_TX_DDC_SCL	I2C 1 interface	36
12	UART1_RXD	uart2.UART2_RX_DATA	UART 1 interface	37
13	SPI0_CLK	ecspi1.ECSPI1_SCLK	SPI 0 interface	38	UART0_RTSN	uart1.UART1_RTS_B	UART 0 interface
14	GND	GND	Connected to GND	39	SPI0_MISO	ecspi1.ECSPI1_MISO	SPI 0 interface
15				40	SPI1_MISO	ecspi2.ECSPI2_MISO	SPI 1 interface
16				41	UART2_CTSN	uart4.UART4_CTS_B	UART 2 interface
17	PWM_OUT2	pwm4.PWM4_OUT	PWM 2 output	42	I2C1_SDA	hdmi.HDMI_TX_DDC_SDA	I2C 1 interface
18	PWM_OUT3	NOT AVAILABLE	PWM 3 output	43	UART1_CTSN	uart2.UART2_CTS_B	UART 1 interface
19	SPI1_MOSI	ecspi2.ECSPI2_MOSI	SPI 1 interface	44	UART0_CTSN	uart1.UART1_CTS_B	UART 0 interface
20	UART2_RXD	uart4.UART4_RX_DATA	UART 2 interface	45	UART3_TXD	uart5.UART5_TX_DATA	UART 3 interface
21	SPI0_MOSI	ecspi1.ECSPI1_MOSI	SPI 0 interface	46	UART0_RXD	uart1.UART1_RX_DATA	UART 0 interface
22	UART1_TXD	uart2.UART2_TX_DATA	UART 1 interface	47	UART1_RTSN	uart2.UART2_RTS_B	UART 1 interface
23	I2C0_SDA	i2c1.I2C1_SDA	I2C 0 interface	48	UART2_TXD	uart4.UART4_TX_DATA	UART 2 interface
24	SPI1_CSN	ecspi2.ECSPI2_SS0	SPI 1 interface	49	RFU
25	GND	GND	Connected to GND	50	GND	GND	Connected to GND
J3 connector
Pin Nº	Pin name	IC Signal	Description	Pin Nº	Pin name	IC Signal	Description
1	GND	GND	Connected to GND	26	VSYS	BATT	PMIC power input
2				27
3	RFU			28
4				29
5				30	LDO25_3V0_150mA	OUT25	PMIC LDO25 output
6				31	LDO21_2V8_300mA	OUT21	PMIC LDO21 output
7				32	LDO21_3V0_150mA	OUT26	PMIC LDO26 output
8				33	LDO19_1V8_150mA	OUT19	PMIC LDO19 output
9				34	LDO23_3V0_300mA	OUT23	PMIC LDO23 output
10				35	LDO12_3V0_150mA	OUT12	PMIC LDO12 output
11	CLK_32KH	32KHCP	32.768 KHz CLK output	36	LDO24_3V0_150mA	OUT24	PMIC LDO24 output
12	PWR_ON	PWRON	PMIC Power ON	37	LDO16_1V8_150mA	OUT16	PMIC LDO16 output
13	GND	GND	Connected to GND	38	LDO20_1V8_150mA	OUT20	PMIC LDO20 output
14				39	LDO09_1V8_150mA	OUT9	PMIC LDO9 output
15	PMIC_RST_2	MRSTB2	PMIC Reset	40	LDO11_1V8_150mA	OUT11	PMIC LDO11 output
16	PMIC_RST_1	MRSTB1		41	BUCK8_3V3_300mA	BUCK8	PMIC BUCK8 output
17	BOOT_SW1	src.SRC_BOOT_CFG06	Bootloader configurator	42
18	BOOT_SW5	src.SRC_BOOT_CFG11		43
19	BOOT_SW3	src.SRC_BOOT_CFG13		44	LDO10_1V8_300mA	OUT10	PMIC LDO10 output
20	BOOT_SW2	src.SRC_BOOT_CFG05		45	LDO03_1V8_300mA	OUT3	PMIC LDO3 output
21	BOOT_SW4	src.SRC_BOOT_CFG12		46	BUCK9_3V3_300mA	BUCK9	PMIC BUCK9 output
22	BOOT_SW0	src.SRC_BOOT_MODE1		47
23	GND	GND	Connected to GND	48
24				49
25	VSYS	BATT	PMIC power input	50
J4 connector
Pin Nº	Pin name	IC Signal	Description	Pin Nº	Pin name	IC Signal	Description
1	GND	GND	Connected to GND	26	GND	GND	Connected to GND
2				27	SDIO1_DATA1	usdhc3.SD3_DATA5	SDIO port 1
3	LDO13_1V8_150mA	OUT13	PMIC LDO13 output	28	AUX_CLK	gpio7.GPIO7_IO10
4	LDO22_2V8_300mA	OUT22	PMIC LDO22 output	29	SDIO1_DATA2	usdhc3.SD3_DATA6
5	SDIO3_CMD	usdhc2.SD2_CMD	SDIO port 3	30	AUX_CDN	gpio1.GPIO1_IO08
6	SDIO3_CLK	usdhc2.SD2_CLK		31	SDIO1_DATA0	usdhc3.SD3_DATA4
7	SDIO3_DATA2	usdhc2.SD2_DATA2		32	AUX_CMD	gpio7.GPIO7_IO09
8	SDIO3_CDN	usdhc2.SD2_CD_B		33	SDIO1_DATA3	usdhc3.SD3_DATA7
9	SDIO3_DATA1	usdhc2.SD2_DATA1		34	SDIO0_DATA0	usdhc3.SD3_DATA0	SDIO port 0
10	SDIO3_DATA0	usdhc2.SD2_DATA0		35	SDIO0_DATA1	usdhc3.SD3_DATA1
11	SDIO3_DATA3	usdhc2.SD2_DATA3		36	SDIO0_CLK	usdhc3.SD3_CLK
12	GND	GND	Connected to GND	37	SDIO0_DATA2	usdhc3.SD3_DATA2
13	RFU			38	SDIO0_DATA3	usdhc3.SD3_DATA3
14	USB3_HOST_OC	NOT AVAILABLE	USB 3 port overcurrent	39	SDIO0_CDN	usdhc3.SD3_RESET
15	USB3_HOST_EN	NOT AVAILABLE	USB 3 port enable	40	SDIO0_CMD	usdhc3.SD3_CMD
16	GND	GND	Connected to GND	41	SDIO2_DATA3	usdhc1.SD1_DATA3	SDIO port 2
17	USB2_HOST_N	USBDN2_DM	USB 2 port data	42	SDIO2_CLK	usdhc1.SD1_CLK
18	USB2_HOST_P	USBDN2_DP		43	SDIO2_DATA1	usdhc1.SD1_DATA1
19	GND	GND	Connected to GND	44	SDIO2_DATA2	usdhc1.SD1_DATA2
20	USB3_HOST_N	USBDN3_DM	USB 3 port data	45	SDIO2_CMD	usdhc1.SD1_CMD
21	USB3_HOST_P	USBDN3_DP		46	SDIO2_DATA0	usdhc1.SD1_DATA0
22	GND	GND	Connected to GND	47	SDIO2_CDN	usdhc1.SD1_CD_B
23	USB1_HOST_N	USBDN1_DM	USB 1 port data	48	VSYS	BATT	PMIC power input
24	USB1_HOST_P	USBDN1_DP		49
25	GND	GND	Connected to GND	50
J5 connector
Pin Nº	Pin name	IC Signal	Description	Pin Nº	Pin name	IC Signal	Description
1	GND	GND	Connected to GND	26	GND	GND	Connected to GND
2				27	GPIO01	gpio6.GPIO6_IO31	GPIO port
3	HSIC_DATA	NOT AVAILABLE	HSIC port	28	GPIO02	gpio1.GPIO1_IO00
4	HSIC_STROBE	NOT AVAILABLE		29	GND	GND	Connected to GND
5	GND	GND	Connected to GND	30
6	XEINT15	gpio6.GPIO6_IO11	Interrupt port	31	GPIO03	gpio2.GPIO2_IO27	GPIO port
7	XEINT14	gpio6.GPIO6_IO14		32	GPIO00	NOT AVAILABLE
8	XEINT13	hdmi.HDMI_TX_DDC_CEC	HDMI exclusive signal	33	HSIC_OC	usb.USB_H1_OC	HSIC port
9	XEINT12	gpio6.GPIO6_IO15	Interrupt port	34	JTAG_TMS	sjc.JTAG_TMS	JTAG port
10	XEINT11	gpio6.GPIO6_IO09		35	GPIO04	gpio2.GPIO2_IO22	GPIO port
11	XEINT10	gpio6.GPIO6_IO16		36	GPIO05	gpio2.GPIO2_IO17
12	XEINT09	gpio6.GPIO6_IO08		37	JTAG_TRSTN	sjc.JTAG_TRSTB	JTAG port
13	XEINT08	gpio6.GPIO6_IO10		38	HSIC_PWREN	usb.USB_H1_PWR	HSIC port
14	XEINT07	hdmi.HDMI_TX_HPD	HDMI exclusive signal	39	JTAG_TDI	sjc.JTAG_TDI	JTAG port
15	XEINT06	gpio6.GPIO6_IO07	Interrupt port	40	JTAG_CLK	sjc.JTAG_TCK
16	XEINT05	gpio2.GPIO2_IO01		41	JTAG_TDO	sjc.JTAG_TDO
17	XEINT04	gpio2.GPIO2_IO00		42	GND	GND	Connected to GND
18	XEINT03	gpio1.GPIO1_IO07		43	USB_OTG_P	usb.USB_OTG_DP	USB OTG bus
19	XEINT02	gpio1.GPIO1_IO06		44	USB_OTG_N	usb.USB_OTG_DN
20	XEINT01	gpio1.GPIO1_IO05		45	GND	GND	Connected to GND
21	RST_OUT	SYS_POR_B	Reset signal out	46	USB_OTG_DRVBUS		USB OTG bus
22	XEINT00	gpio1.GPIO1_IO03	Interrupt port	47	JTAG_NRST		JTAG port
23	RST_RESET	NOT AVAILABLE		48	USB_OTG_VBUS	pmu.USB_OTG_VBUS	USB OTG bus
24	GND	GND	Connected to GND	49	USB_OTG_ID	usb.USB_OTG_ID
25				50	RFU
J6 connector
Pin Nº	Pin name	IC Signal	Description	Pin Nº	Pin name	IC Signal	Description
1	GND	GND	Connected to GND	26	GND	GND	Connected to GND
2	GPIO06	gpio1.GPIO1_IO02	GPIO port	27	RFU
3	GND	GND	Connected to GND	28	MIPI_DSI_D0_N	mipi_dsi.DSI_DATA0_N	MIPI Display port
4	LDO17_1V2_300mA	OUT17	PMIC LDO17 output	29	MIPI_DSI_D0_P	mipi_dsi.DSI_DATA0_P
5	GND	GND	Connected to GND	30	MIPI_DSI_D1_N	mipi_dsi.DSI_DATA1_N
6	AD_IN3		ADC port	31	MIPI_DSI_D1_P	mipi_dsi.DSI_DATA1_P
7	AD_IN0			32	MIPI_DSI_CLK_N	mipi_dsi.DSI_CLK0_N
8	AD_IN2			33	MIPI_DSI_CLK_P	mipi_dsi.DSI_CLK0_P
9	AD_IN1			34	MIPI_DSI_D2_N	NOT AVAILABLE
10	GND	GND	Connected to GND	35	MIPI_DSI_D2_P
11	RFU			36	MIPI_DSI_D3_N
12	RFU			37	MIPI_DSI_D3_P
13	RFU			38	GND	GND	Connected to GND
14	LVDS0_TX0_P	ldb.LVDS0_DATA0_P	LVDS Port	39	MIPI_CSI1_D0_N	mipi_csi.CSI_DATA0_N	MIPI Camera port 1
15	LVDS0_TX0_N	ldb.LVDS0_DATA0_N		40	MIPI_CSI1_D0_P	mipi_csi.CSI_DATA0_P
16	LVDS0_TX1_N	ldb.LVDS0_DATA1_N		41	MIPI_CSI1_D1_N	mipi_csi.CSI_DATA1_N
17	LVDS0_TX1_P	ldb.LVDS0_DATA1_P		42	MIPI_CSI1_D1_P	mipi_csi.CSI_DATA1_P
18	LVDS0_TX2_N	ldb.LVDS0_DATA2_N		43	MIPI_CSI1_CLK_N	mipi_csi.CSI_CLK0_N
19	LVDS0_TX2_P	ldb.LVDS0_DATA2_P		44	MIPI_CSI1_CLK_P	mipi_csi.CSI_CLK0_P
20	LVDS0_CLK_N	ldb.LVDS0_CLK_N		45	MIPI_CSI1_D2_N	mipi_csi.CSI_DATA2_N
21	LVDS0_CLK_P	ldb.LVDS0_CLK_P		46	MIPI_CSI1_D2_P	mipi_csi.CSI_DATA2_P
22	LVDS0_TX3_P	ldb.LVDS0_DATA3_P		47	MIPI_CSI1_D3_N	mipi_csi.CSI_DATA3_N
23	LVDS0_TX3_N	ldb.LVDS0_DATA3_N		48	MIPI_CSI1_D3_P	mipi_csi.CSI_DATA3_P
24	GND		Connected to GND	49	RFU
25				50	GND	GND	Connected to GND
J7 connector
Pin Nº	Pin name	IC Signal	Description	Pin Nº	Pin name	IC Signal	Description
1	RFU			26	GND	GND	Connected to GND
2				27	RGMII_TXCLK	enet.RGMII_TXC	RGMII port
3				28	RGMII_TXD0	enet.RGMII_TD0
4				29	RGMII_TXD1	enet.RGMII_TD1
5				30	RGMII_TXD2	enet.RGMII_TD2
6				31	RGMII_TXD3	enet.RGMII_TD3
7				32	RGMII_TXDEN	enet.RGMII_TX_CTL
8				33	RGMII_INT	Check NOTE1
9	GND	GND	Connected to GND	34	GND	GND	Connected to GND
10	SATA_RX_N	sata_phy.SATA_PHY_RX_N	SATA port	35	PCIE_CLK_N	xtalosc.XTALOSC_CLK1_N	PCIE port
11	SATA_RX_P	sata_phy.SATA_PHY_RX_P		36	PCIE_CLK_P	xtalosc.XTALOSC_CLK1_P
12	GND	GND	Connected to GND	37	PCIE_TX_N	pcie.PCIE_TX_N
13	PCIE_RX_N	pcie.PCIE_RX_N	PCIE port	38	PCIE_TX_P	pcie.PCIE_TX_P
14	PCIE_RX_P	pcie.PCIE_RX_P		39	GND	GND	Connected to GND
15	PCIE_WAKE	gpio5.GPIO5_IO20		40	SATA_TX_N	sata_phy.SATA_PHY_TX_N	SATA port
16	RGMII_MDC	enet.ENET_MDC	RGMII port	41	SATA_TX_P	sata_phy.SATA_PHY_TX_P
17	RGMII_MDIO	enet.ENET_MDIO		42	GND	GND	Connected to GND
18	RGMII_REFCLK	Check NOTE1		43	RFU
19	RGMII_RXDV	enet.RGMII_RX_CTL		44
20	RGMII_RXD3	enet.RGMII_RD3		45
21	RGMII_RXD2	enet.RGMII_RD2		46
22	RGMII_RXD1	enet.RGMII_RD1		47
23	RGMII_RXD0	enet.RGMII_RD0		48
24	RGMII_RXCLK	enet.RGMII_RXC		49
25	GND	GND	Connected to GND	50
J8 connector
Pin Nº	Pin name	IC Signal	Description	Pin Nº	Pin name	IC Signal	Description
1	BUCK8_3V3_300mA	BUCK8	PMIC BUCK8 output	26	GND	GND	Connected to GND
2				27	GPIO07	gpio1.GPIO1_IO28	GPIO port
3	GPIO41	gpio1.GPIO1_IO27	GPIO port	28	GPIO08	gpio2.GPIO2_IO14
4	GND	GND	Connected to GND	29	GPIO09	gpio2.GPIO2_IO07
5	GPIO40	gpio1.GPIO1_IO30	GPIO port	30	GPIO10	gpio5.GPIO5_IO00
6	GPIO39	gpio1.GPIO1_IO26		31	GPIO11	gpio2.GPIO2_IO21
7	GPIO38	gpio1.GPIO1_IO29		32	GPIO12	gpio2.GPIO2_IO18
8	LDO14_1V8_150mA	OUT14	PMIC LDO14 output	33	GPIO13	gpio5.GPIO5_IO04
9	GND	GND	Connected to GND	34	GPIO14	gpio2.GPIO2_IO28
10	GPIO37	gpio4.GPIO4_IO14	GPIO port	35	GPIO15	gpio2.GPIO2_IO19
11	GPIO36	gpio4.GPIO4_IO15		36	GPIO16	gpio6.GPIO6_IO06
12	GPIO35	gpio5.GPIO5_IO18		37	GPIO17	gpio2.GPIO2_IO29
13	GPIO34	gpio5.GPIO5_IO19 NOTE2		38	GPIO18	gpio2.GPIO2_IO20
14	GPIO33	gpio6.GPIO6_IO04		39	GPIO19	gpio2.GPIO2_IO16
15	GPIO32	gpio6.GPIO6_IO05		40	GPIO20	gpio2.GPIO2_IO08
16	GPIO31	gpio4.GPIO4_IO12		41	GPIO21	gpio2.GPIO2_IO11
17	GPIO30	gpio4.GPIO4_IO13		42	GPIO22	gpio2.GPIO2_IO12
18	GND	GND	Connected to GND	43	GPIO23	gpio2.GPIO2_IO13
19	MIPI_CSI2_D1_P	NOT AVAILABLE	MIPI Camera port 2	44	GPIO24	gpio3.GPIO3_IO17
20	MIPI_CSI2_D1_N			45	GPIO25	gpio3.GPIO3_IO18
21	MIPI_CSI2_CLK_P			46	GPIO26	gpio2.GPIO2_IO15
22	MIPI_CSI2_CLK_N			47	GPIO27	gpio5.GPIO5_IO02
23	MIPI_CSI2_D0_P			48	GPIO28	gpio2.GPIO2_IO06
24	MIPI_CSI2_D0_N			49	GPIO29	gpio3.GPIO3_IO23
25	GND	GND	Connected to GND	50	GND	GND	Connected to GND

NOTE1: A revisar en prototipo. En documentación no queda claro cómo llamar a estas señales desde el sistema. En la documentación (Software IO Mux) aparecen cómo conflicto, pero ésto se debe a que en este programa se trabaja sobre la versión convencional de i.MX6Q, no la versión SCM.
NOTE2: GPIO34 is connected to SCM-i.MX6 CSI0_MCLK pin, which is also referred to in other Freescale documentatin as GPIO5_O19.

Signals and pins that do not meet the standard.

Connector	Pin	IC Signal	IC	Connector	Pin	IC Signal	IC
J2	6	audmux.AUD5_TXFS	I2S.TXFS	J5	8	hdmi.HDMI_TX_DDC_CEC	CEC_HDMI (Consumer Electronics Control)
					14	hdmi.HDMI_TX_HPD	HPD_HDMI (Hot Plug Detect)

Power

The next table shows the features of each one of the power supply signals on the Rhomb.io core connectors J1, J3, J4, J6 and J8. Pinout according to the Rhomb.io standard v4.2.

Power supply	Pin	Connector	Voltage(V)	Max current(mA)	Power supply	Pin	Connector	Voltage(V)	Max current(mA)
LDO03_1V8_300mA	45	J3	1,8	300	VSYS	25	J3	0-6	2400
LDO04_2V8_150mA	23	J1	2,8	150		26
LDO05_1V8_150mA	24		1,8	150		27
LDO09_1V8_150mA	39	J3	1,8	150		28
LDO10_1V8_300mA	44		1,8	300		29
LDO11_1V8_150mA	40		1,8	150		48	J4
LDO12_3V0_150mA	35		3	150		49
LDO13_1V8_150mA	3	J4	1,8	150		50
LDO14_1V8_150mA	8	J8	1,8	150	BUCK8_3V3_300mA	41	J3	3,3	1500
LDO16_1V8_150mA	37	J3	1,8	150		42
LDO17_1V2_300mA	4	J6	1,2	300		43
LDO19_1V8_150mA	33	J3	1,8	150		1	J8
LDO20_1V8_150mA	38		1,8	150		2
LDO21_2V8_300mA	31		2,8	300	BUCK9_3V3_300mA	46	J3	3,3	1500
LDO22_2V8_300mA	4	J4	2,8	300		47
LDO23_3V0_300mA	34	J3	3	300		48
LDO24_3V0_150mA	36		3	150		49
LDO25_3V0_150mA	30		3	150		50
LDO26_3V0_150mA	32		3	150

Note that each pin on the connector supports a maximum of 300mA. The VSYS signal is the PMIC input, while the other signals are all outputs.

Mechanical specifications

Warranty

• Precaution against Electrostatic Discharge. When handling Rhomb.io products, ensure that the environment is protected against static electricity. Follow the next recommendations:

1. The users should wear anti-static clothing and use earth band when manipulating the device.
2. All objects that come in direct contact with devices should be made of materials that do not produce static electricity that would cause damage.
3. Equipment and work table must be earthed.
4. Ionizer is recommended to remove electron charge.

• Contamination. Be sure to use semiconductor products in the environment that may not be exposed to dust or dirt adhesion.

• Temperature/Humidity. Semiconductor devices are sensitive to environment temperature and humidity. High temperature or humidity may deteriorate semiconductor devices characteristics. Therefore avoid storage or usage in such conditions.

• Mechanical Shock. Care should be exercised not to apply excessive mechanical shock or force on the connectors and semiconductors devices.

• Chemical. Do not expose semiconductor device to chemical because reaction to chemical may cause deterioration of device characteristics.

• Light Protection. In case of non-EMC (Epoxy Molding Compound) package, do not expose semiconductor IC to strong light. It may cause devices malfunction. Some special products which utilize the light or have security function are excepted from this specification.

• Radioactive, Cosmic and X-ray. Semiconductor devices can be influenced by radioactive, cosmic ray or X-ray. Radioactive, cosmic and X-ray may cause soft error during device operation. Therefore semiconductor devices must be shielded under environment that may be exposed to radioactive, cosmic ray or X-ray.

• EMS (Electromagnetic Susceptibility). Note that semiconductor devices characteristics may be affected by strong electromagnetic waves or magnetic field during operation.

Disclaimer

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