ConnectCore® 8X
SBC Pro
Hardware Reference Manual -- Preliminary
Include the document title and part number (ConnectCore 8X SBC Pro Hardware Reference Manual --
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ConnectCore 8X SBC Pro Hardware Reference Manual -- Preliminary
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Contents
ConnectCore 8X SBC Pro Hardware Reference Manual -- Preliminary
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About the ConnectCore 8X SBC Pro
Overview
The ConnectCore 8X SBC Pro is an ultra compact Pico-ITX board featuring the Digi ConnectCore 8X
System-on-Module that integrates an NXP i.MX8X application processor, LPDDR4 memory, eMMC flash
memory, WLAN/Bluetooth, power management IC for optimized power consumption applications and
a microcontroller assistant (MCA) for supporting additional functionality. This standalone product
serves as the reference design for the ConnectCore 8X System-on-Module and can also be used on its
own to accelerate time to market.
Features and functionality
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ConnectCore 8X System-on-Module:
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MX8X Dual/Quad ARM Cortex-A35 and single Cortex-M4F cores
2 GB, 32-bit LPDDR4-1200 memory
8 GB, 8-bit eMMC memory
IEEE802.11 a/b/g/n/ac and Bluetooth 4.2
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Power:
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Power jack and industrial dedicated 5V power connector
Coin-cell battery charger, supplying the on-module RTC
Power and reset buttons
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Boot source configuration: internal eMMC, microSD, USB
Debug:
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Standard IEEE 1149.1-2001 JTAG interface
Single Wired Debug (SWD) interface for the microcontroller assistant
TTL serial console
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Communication:
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Two 10/100/1000 Mbps Ethernet interfaces
Two USB Host 2.0 interfaces on stacked USB A-type connector
USB3.0 on USB C-type connector
USB 2.0 OTG on micro AB-type connector
PCI Express Mini Card slot supporting full-size cards
XBee socket
MIMO IEEE 802.11 a/b/g/n/ac + Bluetooth 4.2 dual mode
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About the ConnectCore 8X SBC Pro
Features and functionality
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Multimedia:
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Two LVDS interfaces, each one supporting up to four differential data pairs
One MIPI CSI-2 camera
One 8-bit parallel camera interface
Audio CODEC supporting stereo headphone jack, speakers, mic-in, line-out and two line-in
lines
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Storage:
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microSD card slot
Expansion/User interfaces
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Two 40-pin expansion connectors providing access to many different interfaces
Two user LEDs
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Note Some of the functionality mentioned above is specific to a ConnectCore 8X SBC Pro variant.
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About the ConnectCore 8X SBC Pro
Connectors, jumpers, and switches
Bottom view
Description
Connector Interface
Manufacturer
Manufacturer part number
J2
J3
J4
J5
J6
J7
J8
J9
J10
3.3V output
5V output
5V power-in jack
5V power in
Coin cell
Molex
53047-0210
Molex
53047-0210
Bobbintron
TE Connectivity
Molex
CSCD443CCS011B00G
640456-2
53047-0210
Mini PCIe
Micro SIM
SWD
Foxconn
Molex
AS0B226-S68Q-7H
78727-0001
Samtec
Molex
FTSH-105-01-F-DV
500873-0806
MicroSD
ConnectCore 8X SBC Pro Hardware Reference Manual -- Preliminary
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About the ConnectCore 8X SBC Pro
Connectors, jumpers, and switches
Connector Interface
Manufacturer
Manufacturer part number
J11
Console
Molex
53047-0410
J12
Ethernet 1
Ethernet 2
LVDS 0
XMultiple
XMultiple
Hirose
FCI
XMG-J1B2211NPA-1-DIG
XMG-J1B2211NPA-1-DIG
DF14A-20P-1.25H
SFW15S-2STE1LF
DF14A-20P-1.25H
XF2M-2015-1A
J13
J14
J15
MIPI camera
LVDS 1
J16
Hirose
Omron
J17
Parallel camera
J18
Stacked USB A-type connector KYCON
KUSBX-AS2N
J19
USB C-type connector
Expansion connectors
XBee socket
Molex
201267-0005
J20-J27
J22-J23
J28
Wurth Electronics Inc 61304021121
Samtec SMM-110-02-F-S-P-TR
USB micro AB-type connector KYCON
KMMX-ABSMT5SG-30TR
CAD1
CAD2
SW1
SW2
S2
i.MX8X JTAG Tag Connect
MCA SWD Tag Connect
Power button
-
-
-
-
ITT
KSC221JLFS
KSC221JLFS
C&K Components
Reset button
ITT
Boot switches
TDA02H0SB1
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ConnectCore 6UL SBC Pro interfaces
Power interfaces
Power interfaces
DC-in jack connector
A 5V DC-in power jack connector (J4) provides power to the entire ConnectCore 8X SBC Pro system.
An overvoltage circuit protects the SBC from voltages higher than 6.5V (up to 12V). Behind the
overvoltage protection, a 5V load switch (U2) controls the power delivered to the SBC. The enable pin
of the power switch is controlled through 5V_SBC_PWR_ON signal from the CPU (GPIO0_13).
Additional power connector
In addition to the power jack assembled on the SBC Pro, a 2-pin, 2.54 mm pitch, latched vertical
connector on the top side of the board offers an alternative power rail to the whole system. This
power input is also protected against overvoltage events.
The following table shows the pinout of the power connector (J5):
Pin Signal name Description
1
2
VIN
5 power supply line.
GND
Coin cell connector
A 2-pin, 1.25 mm pitch straight connector (J6), provides battery charging functionality and power the
real-time-clock (RTC) interface when the main supply of the board is off. The main power supply rail
powers the RTC while it is connected. You can supply the RTC with a primary Lithium cell (non-
rechargeable), a secondary Lithium cell (rechargeable) or a supercap.
The following table shows the pinout of the coin cell connector:
Pin Signal name Description
1
2
VCC_LICELL Power supply line for RTC.
GND
5V supply connector
The ConnectCore 8X SBC Pro provides a 2-pin, 1.25 mm pitch straight connector with a regulated 5V
supply for powering external circuitry. The 5V supply is generated on the on-board 5V regulator, which
is also used internally in the ConnectCore 8X SBC for powering the video interfaces. The following
table shows the pinout of the 5V supply connector (J3):
Pin Signal name Description
1
2
5V
5V power supply line.
GND
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ConnectCore 6UL SBC Pro interfaces
Boot mode
3.3V supply connector
Together with the 5V supply connector, another 2-pin, 1.25 mm pitch straight connector is supported
on the ConnectCore 8X SBC Pro providing a regulated 3.3V supply for powering external circuitry. The
3.3V power supply is generated on a buck regulator of the ConnectCore 8X PMIC (3V3_EXT power rail),
which is also used on-board for powering many interfaces of the ConnectCore 8X SBC Pro carrier
board. The following table shows the pinout of the 3.3V supply connector (J2):
Pin Signal name Description
1
2
3V3_EXT
GND
3.3V power supply line.
Power and reset buttons
The ON/OFF button (SW1) on the ConnectCore 8X SBC Pro is connected to the on-module MCA, and
provides the following functionality:
Board status Power button action
OFF Short press
Response
Power on
ON or SLEEP Long press for 5 seconds Power off
SLEEP
ON
Short press
Short press
Wake up
Sleep
The RESET button (SW2) is also connected to the MCA, and by pressing it, the system will be reset.
8X online documentation for more information.
Boot mode
By default, the ConnectCore 8X module boots from the internal board settings, allowing it to boot
from the internal eMMC flash memory. For advanced functionality, the ConnectCore 8X SBC Pro
provides two switches (S2) to configure the SOM boot mode, as explained below:
SW2 SW1 Boot mode
Open Open eMMC
Open Close Fuses
Close Open microSD
Close Close Serial downloader
Serial downloader mode allows you to boot from USB. This booting process is ideal for recovery
purposes, such as if the boot loader is erased or cannot boot. If the system is configured to boot from
any other source (internal eMMC, microSD) but the booting process fails (e.g. wrong images loaded)
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ConnectCore 6UL SBC Pro interfaces
Debug interfaces
the system will also fall back to booting into USB debug mode, regardless the state of the switches.
For more information about the boot mode configuration, see the ConnectCore 8X System-on-Module
Debug interfaces
JTAG
The ConnectCore 8X SBC Pro provides a Tag Connect footprint for accessing the i.MX8X JTAG debug
port. This footprint is located on the bottom side of the board.
SWD
The ConnectCore 8X SBC Pro provides two options for programming and debugging the
Microcontroller Assist carried by the ConnectCore 8X SOM:
The first option is a 2x5, 1.27 mm pitch pin header (J9) on the top side of the board that, by default, is
not populated. The following table shows the pinout of the SWD connector:
Pin Schematic signal name Description
1
2
3
4
5
6
7
8
9
VCC_MCA
MCA power supply line.
SWD_DIO/PWR_IO
SWD bidirectional data line.
GND
SWD_CLK/PWR_IO
SWD clock signal.
GND
NC
NC
NC
GND
10 SYS_RESET
Reset signal for the MCA.
The second option is the ARM 10-pin standard-compliant Tag Connect footprint on the bottom side of
the board.
Console port
As the debug console port, the ConnectCore 8X SBC Pro provides a 4-pin, 1.25 mm pitch connector
(J11). The UART2 port of the ConnectCore 8X module is used for this purpose. The console signals is a
serial TTL, which travels through the console connector directly to the i.MX8X processor. A TTL-to-USB
cable can be used for accessing this console port from a host PC USB port. The following table shows
the pinout of this console connector:
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ConnectCore 6UL SBC Pro interfaces
Communication interfaces
Pin Signal name Description
1
2
3
4
CONSOLE_TX Transmission line.
CONSOLE_RX Receiver line.
3V3_EXT
GND
3.3V power supply line.
The default console setting are as follows:
Baud rate
Data
115200
8 bit
Parity
Stop
none
1 bit
Flow control none
Communication interfaces
10/100/1000 Mbps Ethernet
The ConnectCore 8X SBC Pro provides two 10Base-T/100Base-Tx/1000Base-T Ethernet interfaces, by
using two Qualcomm Atheros AR8031 10/100/1000 Ethernet PHYs. These Ethernet PHYs are
connected to the i.MX8X ENET0 and ENET1 interfaces, respectively. Both Ethernet interfaces area
accessible through RJ-45 connectors (J12 and J13) with integrated link/activity LEDs, as specified in
the following table:
Green LED Yellow LED Link/activity status
ON
OFF
OFF
OFF
OFF
ON
10M Link
BLINK
ON
10M Active
100M Link
100M Active
1000M Link
1000M Active
BLINK
ON
BLINK
ON
For power management purposes, a dedicated power switch allows you to control the power over the
Ethernet PHYs.
USB Host
The ConnectCore 8X SBC Pro offers support for four USB Host interfaces through a USB Hub
controller:
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ConnectCore 6UL SBC Pro interfaces
Communication interfaces
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Two of them are available over a stackable dual USB A-type connector (J18) located on the front of
the board.
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One USB host is connected to the PCI Express Mini card connector.
One USB host is connected to the XBee socket.
Both the PCI Express and the XBee USB buses can be disconnected from these interfaces and
accessed on the Expansion connector. These connections are managed through 0-ohm resistors:
USB_PCIe/EXPANSION_USB1 bus configuration
USB_PCIe connected EXPANSION_USB1 connected
R228/R229
R191/R192
Populated
Not populated
Populated
Not populated
XBEE/EXPANSION_USB2 bus configuration
XBEE connected EXPANSION_USB2
R76/R77
R78/R79
Populated
Not populated
Populated
Not populated
For power management purposes, a dedicated power switch allows you to control the power over the
USB Hub.
USB 3.0
One USB 3.0 bus is available through a USB C-type connector (J19) located on the top side of the
board. The USB 3.0 adds the SupesSpeed (SS) transfer rate, which works up to 5 Gb/s.
This interface can work at both USB 2.0 and USB 3.0 modes, and it can also work in both Host and
Device modes.
When the interface is configured to work in Host mode, the power delivered to the device can be
configured up to 3A.
Note In the first-availability kits of the ConnectCore 8X SBC Pro, the USB 3.0 bus is not supported on
the USB C-type connector. It will only work as USB 2.0.
PCI Express
The ConnectCore 8X SBC Pro provides a Mini PCI Express connector with the following interfaces:
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I2C.
USB Host port (see USB Host section).
PCIe interface, only available in carrier boards with non-wireless ConnectCore 8X SOM variants.
One GPIO for the low-level PCIe wake-up signal.
One GPIO for the low-level PCIe disable signal.
One GPIO for the low level PCIe reset signal.
SIM interface. The micro-SIM card slot is located on the bottom side of the board (J10).
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ConnectCore 6UL SBC Pro interfaces
Communication interfaces
For power management purposes, a dedicated 3.3V regulator allows you to control the power over
the PCIe interface.
The ConnectCore 8X SBC Pro has two 2.6 mm metalized drills supporting full-size PCI Express cards.
The following table shows the pinout of the PCIe connector:
Pin Signal name
Description
1
2
3
4
5
6
7
8
9
PCIE_WAKE_N
PCIe_VCC
NC
Wake-up signal.
3.3V power supply line.
Not connected.
GND
NC
Not connected.
VLDO4_1V5
NC
1.5V power supply line.
Not connected.
PCIE_UIM_PWR Power supply for SIM card.
GND
10 PCIE_UIM_DATA SIM card data line.
11 PCIE_CLK_N PCIe clock pair line (-).
12 PCIE_UIM_CLK SIM card clock line.
13 PCIE_CLK_P PCIe clock pair line (+).
14 PCIE_UIM_RST SIM card reset line.
15 GND
16 PCIE_UIM_VPP Power supply for SIM programming.
17 NC
Not connected.
18 GND
19 NC
Not connected.
Disable signal.
20 PCIE_DIS_N
21 GND
22 PCIE_RESET_N Reset signal.
23 PCIE_RX_N
24 PCIe_VCC
25 PCIE_RX_P
26 GND
PCIe reception pair line (-).
3.3V power supply line.
PCIe reception pair line (+).
27 GND
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ConnectCore 6UL SBC Pro interfaces
Communication interfaces
Pin Signal name
28 VLDO4_1V5
29 GND
Description
1.5V power supply line.
30 PCIE_I2C_SCL
31 PCIE_TX_N
32 PCIE_I2C_SDA
33 PCIE_TX_P
34 GND
I2C clock line.
PCIe transmission pair line (-).
I2C data line.
PCIe transmission pair line (+).
35 GND
36 USB_PCIe_D_N USB differential data line (-).
37 GND
38 USB_PCIe_D_P USB differential data line (+).
39 PCIe_VCC
40 GND
41 PCIe_VCC
42 NC
3.3V power supply line.
Not connected.
43 GND
44 NC
Not connected.
Not connected.
Not connected.
Not connected.
1.5V power supply line.
Not connected.
45 NC
46 NC
47 NC
48 VLDO4_1V5
49 NC
50 GND
51 NC
Not connected.
52 PCIe_VCC
3.3V power supply line.
XBee
The ConnectCore 8X SBC Pro provides an XBee socket supporting the connection of Digi XBee/XBee-
PRO modules. The XBee socket consist of two 10-pin, 2 mm pitch connectors (J22 and J23) which
follow the standard pinout of the XBee modules:
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ConnectCore 6UL SBC Pro interfaces
Multimedia interfaces
Signal J12
name pin XBee standard pin
J13 Signal
pin name
Description
Description
3.3V power
supply line.
XBEE_
VCC
1
1 - VCC
ADC0/DIO0
- 20
1
-
XBee UART
output data line. UART2_
RX
MCA_
2
2 - DOUT
AD1/DIO1 -
19
2
-
XBee UART input MCA_
3
3 -
AD2/DIO2 -
3
-
-
data line.
UART2_
TX
DIN/CONFIG_ 18
N
-
4
5
4 - D08
AD3/DIO3 -
17
4
5
XBee reset line,
connected to
MCA_IO15.
XBEE_
RESET_
N
5 - RESET_N RTS_
N/DIO6 -
MCA_
UART2_
RTS
XBee UART
clear to send
line.
16
-
6
7
8
6 -
AD5/DIO5 -
15
6
7
-
PWM0/RSSI
XBEE_
D_P
7 - Reserved VREF - 14
-
XBEE_
D_N
8 - Reserved ON/SLEEP_ 8
XBEE_
XBee status
N - 13
ON/SLEEP_ line, connected
N
to MCA_IO16.
XBee request
line, connected to SLEEP_
MCA_IO11.
XBEE_
9
9 - DTR_
N/SLEEP_
RQ/DI8
CTS_
N/DIO7 -
12
9
MCA_
UART2_
CTS
XBee UART
request to send
lind.
RQ
GND
10 10 - GND
AD4/DIO4 - 10
11
-
The XBee can communicate with the ConnectCore 8X SOM in two different ways:
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Using the UART2 bus of the ConnectCore 8X on-module MCA.
Using the USB bus.
Host for detailed information.
Multimedia interfaces
LVDS/MIPI-DSI display
The two MIPI-DSI/LVDS combo PHYs supported by the ConnectCore 8X module are available over two
different LVDS display connectors (J14 and J16) on the top side of the ConnectCore SBC Pro board:
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ConnectCore 6UL SBC Pro interfaces
Multimedia interfaces
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MIPI_DSI0 bus is connected to J14.
MIPI_DSI1 bus is connected to J16.
These are 20-pin, 1.25 mm pitch connectors, which provides access to the following LVDS capabilities:
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Up to four LVDS differential data pairs.
One LVDS differential clock pair.
Interrupt signal with 10K pull-up resistor for touch screen.
Control of the backlight contrast.
I2C, shared with the MIPI-DSI connector.
3.3V power supply.
5V power supply.
Both the LVDS connectors exhibit the same pinout:
Pin Signal name
Description
1
2
3
4
5
6
7
8
9
3V3_EXT
3.3V power supply line.
Transmission pair 0 data line (-).
Transmission pair 0 data line (+).
MIPI_DSI0/1_DATA0_N
MIPI_DSI0/1_DATA0_P
GND
MIPI_DSI0/1_DATA1_N
MIPI_DSI0/1_DATA1_P
GND
Transmission pair 1 data line (-).
Transmission pair 1 data line (+).
MIPI_DSI0/1_DATA2_N
MIPI_DSI0/1_DATA2_P
Transmission pair 2 data line (-).
Transmission pair 2 data line (+).
10 GND
11 MIPI_DSI0/1_CLK_N
12 MIPI_DSI0/1_CLK_P
13 GND
Transmission pair clock line (-).
Transmission pair clock line (+).
14 MIPI_DSI0/1_DATA3_N
15 MIPI_DSI0/1_DATA3_P
Transmission pair 3 data line (-).
Transmission pair 3 data line (+).
16 MIPI_DSI0/1_PWM0_OUT Backlight PWM.
17 MIPI_DSI0/1_I2C0_SCL
18 MIPI_DSI0/1_I2C0_SDA
19 MIPI_DSI0/1_IRQ_N
20 VIN
I2C bus clock line.
I2C bus data line.
Display interrupt line.
5V power supply line.
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ConnectCore 6UL SBC Pro interfaces
Multimedia interfaces
MIPI camera
The ConnectCore 8X SBC Pro provides one MIPI camera interface compliant with the MIPI CSI-2
specification. A MIPI D-PHY is supported by the i.MX8X CPU, allowing direct connections between the
module and a MIPI CSI-2 compliant camera sensor.
This MIPI interface is available over a 15-pin, 1mm pitch, FCC connector on the top side of the board
(J15), whose pinout is described in the following table:
Pin Signal name
Description
1
2
3
4
5
6
7
8
9
3V3_EXT
3.3V power supply line.
MIPI_CSI0_I2C0_SDA I2C bus data line.
MIPI_CSI0_I2C0_SCL I2C bus clock line.
NC
Not connected.
MIPI_CSI0_RESET_N Camera reset line.
GND
MIPI_CSI0_CLK_P
MIPI_CSI0_CLK_N
GND
Transmission pair clock line (+).
Transmission pair clock line (-).
10 MIPI_CSI0_DATA1_P Transmission pair 1 data line (+).
11 MIPI_CSI0_DATA1_N Transmission pair 1 data line (-).
12 GND
13 MIPI_CSI0_DATA0_P Transmission pair 0 data line (+).
14 MIPI_CSI0_DATA0_N Transmission pair 0 data line (-).
15 GND
Parallel camera
The ConnectCore 8X SBC Pro provides one parallel camera interface (CSI). It is composed of an 8-bit
data bus, a master clock from the i.MX8X CPU and three synchronization signals (PIXCLK, HSYNC and
VSYNC).
This interface is available over a 20-pin, 0.5 mm pitch FCC connector (J17) located in top side of the
board, which has the following pinout:
Pin Signal name Description
1
2
3
GND
CSI_D00
CSI_D01
Camera data line 0.
Camera data line 1.
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ConnectCore 6UL SBC Pro interfaces
Storage interfaces
Pin Signal name Description
4
5
6
7
8
9
CSI_D02
CSI_D03
CSI_D04
CSI_D05
CSI_D06
CSI_D07
Camera data line 2.
Camera data line 3.
Camera data line 4.
Camera data line 5.
Camera data line 6.
Camera data line 7.
10 GND
11 CSI_MCLK
12 CSI_PCLK
13 CSI_HSYNC
14 CSI_VSYNC
15 CSI_EN
Camera master clock line.
Camera pixel clock line.
Camera horizontal sync line.
Camera vertical sync line.
Camera enable signal.
Camera reset line.
16 CSI_RESET
17 GND
18 CSI_SCL
19 CSI_SDA
20 3V3_EXT
I2C bus clock line.
I2C bus data line.
3.3V power supply line.
Audio
Audio functionality on the ConnectCore 8X SBC Pro supports headphone, speakers, line-out, two line-
in and microphone signals. A Maxim MAX98089 audio codec manages the audio interface, which
communicates with the i.MX8X CPU through I2C. For power management purposes, a dedicated
power switch allows you to control the power over the audio codec.
The headphone audio output of the audio codec is connected to a stereo audio jack (J21) located on
the front edge of the SBC Pro. The remaining audio signals mentioned above are available over the
Storage interfaces
MicroSD
A microSD socket (J10) is located on the bottom side of the board. This interface is connected to the
USDHC1 controller of the i.MX8X CPU.
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ConnectCore 6UL SBC Pro interfaces
Expansion and user interfaces
Expansion and user interfaces
Expansion connector
Two 2-row, 40-pin, 2.54 mm pitch headers (J20 and J27) are supported by the ConnectCore 8X SBC
Pro board. This headers acts as an expansion connector, offering access to many different interfaces
of the CPU and the MCA.
The following table show the pinout of the expansion connectors:
Description
Signal name Pin
Signal name Description
J20
MCA power supply line.
MCA 32 kHz clock output.
VCC_MCA
1
3
2
4
GND
MCA_
CLKOUT32K
1V8_EXT
1.8V power supply line.
MCA GPIO.
MCA GPIO.
MCA GPIO.
MCA GPIO.
MCA_IO6
MCA_IO8
MCA_IO10
MCA_IO14
5
7
9
6
8
MCA_IO7
MCA_IO9
MCA GPIO.
MCA GPIO.
MCA GPIO.
10 MCA_IO5
11 12 MCA_VREF_ MCA voltage reference
OUT
output.
i.MX8X GPIO.
GPIO4_20
13 14 GPIO4_21
15 16 MCA_IO17
i.MX8X GPIO.
MCA GPIO.
3.3V power supply rail of the RF 3V3_RF
section of the SOM.
Connected to on-module
wireless MAC and to MCA_IO12. HOST
BT_WAKEUP_ 17 18 BT_
Connected to on-module
wireless MAC.
WAKEUP_
SLAVE
Connected to on-module
wireless MAC.
PCM_CLK
19 20 PCM_IN
21 22 PCM_SYNC
23 24 LTE_PRI
25 26 LTE_SYNC
27 28 MIC_N
Connected to on-module
wireless MAC.
Connected to on-module
wireless MAC.
PCM_OUT
GPS_COEX
QOW
Connected to on-module
wireless MAC.
Connected to on-module
wireless MAC.
Connected to on-module
wireless MAC.
Connected to on-module
wireless MAC.
Connected to on-module
wireless MAC.
Audio codec line A1 input.
Audio codec line A2 input.
Audio codec line B1 input.
LINE1_IN_R
LINE1_IN_L
LINE2_IN_R
Negative differential
microphone input.
29 30 MIC_P
Positive differential
microphone input.
31 32 SPKL_P
Positive left-channel
speaker output.
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ConnectCore 6UL SBC Pro interfaces
Expansion and user interfaces
Description
Signal name Pin
Signal name Description
Audio codec line B2 input.
LINE2_IN_L
33 34 SPKL_N
Negative left-channel
speaker output.
Right output line.
Left output line.
LINE_OUT_R 35 36 SPKR_P
LINE_OUT_L 37 38 SPKR_N
Positive right-channel
speaker output.
Negative right-channel
speaker output.
Input reset line of the
ConnectCore 8X SOM.
SYS_RESET
39 40 POWER_
Power button of the
ConnectCore 8X SOM.
BUTTON
J27
3.3V power supply line.
i.MX8X SPI0 clock line.
3V3_EXT
1
3
2
4
GND
SPI0_SCK
SPI0_CS0
i.MX8X SPI0 chip select 0
line.
i.MX8X SPI0 bus input data line. SPI0_SDI
i.MX8X SPI0 bus output data line. SPI0_SDO
5
7
9
6
8
SPI0_CS1
i.MX8X SPI0 bus chip
select 1 line.
SPI0_IRQ_N i.MX8X SPI0 bus
interrupt line.
CAN1 low line.
CAN1_L
CAN1_H
10 CAN2_L
CAN2 low line.
CAN2 high line.
CAN1 high line.
11 12 CAN2_H
i.MX8X I2C3 bus clock line.
EXP_I2C_SCL 13 14 EXP_I2C_
i.MX8X I2C3 bus
interrupt line.
IRQ_N
i.MX8X I2C3 bus data line.
EXP_I2C_SDA 15 16 EXP_I2C_
i.MX8X I2C3 bus
dedicated GPIO.
GPIO
i.MX8X UART0 bus transmission UART0_TX
line.
17 18 UART0_RTS_ i.MX8X UART0 bus
B
request to send line.
i.MX8X UART0 bus receiver line. UART0_RX
19 20 UART0_CTS_ i.MX8X UART0 bus clear
B
to send line.
RS485 A line.
i.MX8X M40 UART bus
transmission line.
M40_UART_
TX
21 22 RS485_A
i.MX8X M40 UART bus receiver
line.
M40_UART_
RX
23 24 RS485_B
RS485 B line.
i.MX8X ADC channel 0.
i.MX8X ADC channel 1.
ADC_IN0
ADC_IN1
25 26 ADC_IN4
i.MX8X ADC channel 4.
i.MX8X ADC channel 4.
i.MX8X GPIO.
27 28 ADC_IN5
Connected to SN65HVD233DR
Rs pin (8).
CAN1_MODE 29 30 GPIO4_19
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ConnectCore 6UL SBC Pro interfaces
Expansion and user interfaces
Description
Signal name Pin
Signal name Description
Connected to SN65HVD233DR
Rs pin (8).
CAN2_MODE 31 32 EXPANSION_ USB expansion bus 1
USB1_D_P differential data line (+).
USB expansion bus 2 differential EXPANSION_ 33 34 EXPANSION_ USB expansion bus 1
data line (+).
USB2_D_P
USB1_D_N
differential data line (-).
USB expansion bus 2 differential EXPANSION_ 35 36 GPIO0_12
i.MX8X GPIO.
data line (-).
i.MX8X GPIO.
USB2_D_N
GPIO5_09
37 38 VCC_LICELL Power supply line for
RTC.
GND
39 40 5V
5V power supply line.
User LEDs
Two user LEDs are located on the top side of the ConnectCore 8X SBC Pro board. Both LEDs are
connected to GPIOs from the MCA as follows:
Device
MCA port
User LED0 PTD5
User LED1 PTD6
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25
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