S400 Core - SCM-i.MX6


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.MX6 Key Features
CPU: ARM Cortex A-9 quad core, 32 bits
RAM: 1 GB or 2 GB LPDDR2
Operating frequency: up to 400 MHz
PMIC uOMIC system power management
21 power outputs: 0.75 V to 3.9 V, 150 mA to 1.5 A
Op. Voltage: 3.4 V to 5 V
Op. Temperature: -40 ºC to +85 ºC
Dimensions: 45x27x3.71

SCMiMX6 top shield v1.png SCMiMX6 top v1.png SCMiMX6 bot v1.png

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 45x27x3 mm. 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.

SCMiMX6 Block Diagram V1.jpg

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).

Description top v1.jpgDescription bot v1.jpg


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. Each pin on the connector supports a maximum of 300 mA.

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
5 VIDEO_VD13 ipu1.IPU1_DISP0_DATA13 30 VIDEO_VD18 ipu1.IPU1_DISP0_DATA18
7 VIDEO_VD04 ipu1.IPU1_DISP0_DATA04 32 VIDEO_VD11 ipu1.IPU1_DISP0_DATA11
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
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
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
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
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
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
5 GND GND Connected to GND 30
6 XEINT15 gpio6.GPIO6_IO11 Interrupt port 31 GPIO03 gpio2.GPIO2_IO27 GPIO port
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
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
10 GND GND Connected to GND 35 MIPI_DSI_D2_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
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
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
17 RGMII_MDIO enet.ENET_MDIO 42 GND GND Connected to GND
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
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

NOTE: 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)


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.

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

SCM-i.MX6 Dimensions v1.PNG


  • 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.


Rhomb.io reserves the right to make corrections, enhancements, improvements and other changes to its products and services, and to discontinue any product or service. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All the hardware products are sold subject to the Rhomb.io terms and conditions of sale supplied at the time of order acknowledgment.

All brand names, trademarks and registered trademarks belong to their respective owners.

We are constantly striving to improve the quality of our technical notes. If you find an error or omission please let us know.

Email us at: info@rhomb.io

Where to buy

You can purchase this item at the Rhomb website store.

Please, click the icon below.