Digi ConnectCore 6 Quick user guide

Hardware Reference Manual
ConnectCore® 6 SBC
v3

ConnectCore® 6 SBC v3 Hardware Reference Manual 2
ConnectCore® 6 SBC v3 Hardware Reference Manual
(Part number 90001499 A)
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Revision Date Description
A February 2016 Initial Release

ConnectCore® 6 SBC v3 Hardware Reference Manual 3
Contents
Overview
Using this guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Document updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Additional resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ConnectCore 6 SBC overview
Features and functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Placement - top side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Placement - bottom side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SBC block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ConnectCore 6 SBC Interfaces
DC-in connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Overvoltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5V load switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SBC coin cell connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5V supply connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3V supply connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
SBC boot configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
SBC boot source jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Boot mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power and reset functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
JTAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
SWD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
SBC console port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
SATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Micro SD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Gigabit ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Gigabit ethernet PHY address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
USB OTG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
USB host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PCI express mini card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
SBC micro-SIM card slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
XBee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Parallel display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
LVDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
HDMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
MIPI display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
MIPI camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Parallel camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
CAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
CAN termination resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
UART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
I2C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
GPIO and user LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

ConnectCore® 6 SBC v3 Hardware Reference Manual 4
Specifications
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Supply voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
WLAN specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Bluetooth specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

ConnectCore 6 SBC Hardware Reference Manual 5
Overview
Using this guide
This guide provides information about the Digi ConnectCore 6 embedded core module family.
Document updates
Check the product specific section on the Digi support website at www.digiembedded.com/support for the most
current revision of this document.
Additional resources
Refer to the most recent Freescale i.MX6 processor reference manual and related documentation (available on the
Freescale web site at: http://www.freescale.com/imx6) for additional information.

ConnectCore® 6 SBC v3 Hardware Reference Manual 6
ConnectCore 6 SBC overview
The ConnectCore 6 SBC is a Pico-ITX board featuring the Digi ConnectCore 6 module that integrates a Freescale i.MX6
application processor, DDR3 DRAM memory, eMMC memory, WLAN/Bluetooth module, power management IC for
optimized power consumption applications and a programmable microcontroller assistant for supporting additional
interfaces.
The ConnectCore 6 SBC provides a selection of I/O interfaces including two USB 2.0 ports, one micro USB OTG
connector, micro SD card slot, HDMI, audio jack for stereo audio output and a Gigabit Ethernet port. All these
connectors together with the main power connector are located on the front edge of the board making them easily
accessible if the board is assembled into an enclosure.
The ConnectCore 6 SBC provides a great selection of multimedia connectors including two LVDS displays, MIPI CSI-2
camera, MIPI DSI display, two 8-bit parallel cameras and a 24-bit parallel display.
Additional on board connectors provide support for SATA interface, JTAG and console debug ports, coin cell
connector to supply the RTC, and expansion connectors for USB, two CAN ports, I2C, SPI, three UART ports, twelve
GPIOs and audio input and output.
The board provides a mini-PCIe socket for connecting full or half size PCI express mini cards. A micro-SIM card is
connected to the mini PCIe slot making the ConnectCore 6 SBC ready for a mini PCIe cellular card.
The ConnectCore 6 SBC also has a connector for a Digi XBee module.
The board is powered from a single 5V DC supply Two expansion connectors with 5V and 3.3V are provided to supply
external circuitry. An overvoltage circuit protects the board from input voltages up to12V.
Features and functionality
•ConnectCore 6 module
i.MX6 single/dual/quad ARM Cortex-A9 cores operating at speeds of up to 1.2GHz
64-bit DDR3-1066 memory interface with a density up to 2Gbytes
8-bit eMMC support up to revision 4.4/4.41
Optional IEEE802.11a/b/g/n WLAN and Bluetooth 4.0
•Power from a single 4.2V to 5.5VDC supply
+5V load switch
•Overvoltage protection circuit

Features and functionality
ConnectCore® 6 SBC v3 Hardware Reference Manual 7
Boot source configuration (eMMC, microSD, SATA)
Coin-cell connector to supply the on module RTC
Power button and reset button
Power LED to show the status of the main supply
5V supply connector to supply external devices
3.3V supply connector to supply external devices
•Debug
Standard IEEE 1149.1 JTAG interface
Single Wired Debug (SWD) interface for the microcontroller assistant (MCA)
Console serial port
•Storage
SATA interface
microSD card slot
•Multimedia
Two LVDS interfaces supporting 4 differential data pairs each
24-bit parallel LCD interface
HDMI 1.4 interface
MIPI DSI display
MIPI CSI-2 camera
Two 8-bit parallel camera interfaces
AC97 audio CODEC with stereo headphone jack
•Communication
Gigabit Ethernet interface
Mini PCIe slot supporting full size and half size mini PCIe cards
microSIM card slot connected to the mini PCIe slot
USB OTG with micro AB USB connector
Two USB Host 2.0 with stacked USB A type connector
XBee socket for Digi XBee THT modules
•Expansion
One USB Host 2.0 port
Two CAN ports
Three UART ports (one TTL level and two RS232)
SPI
I2C
Audio connector with MIC, LINE-IN and LINE-OUT

Features and functionality
ConnectCore® 6 SBC v3 Hardware Reference Manual 8
GPIO connector with 4 analog inputs and 8 digital GPIO signals
Power connector with reset and power signals
•User interface
Three user LEDs (green, yellow, red)
•Dimensions
Pico-ITX form factor, 100mm x 72mm
Placement - top side

Features and functionality
ConnectCore® 6 SBC v3 Hardware Reference Manual 9
Placement - bottom side

Features and functionality
ConnectCore® 6 SBC v3 Hardware Reference Manual 10
SBC block diagram
The figure below shows the block diagram of the ConnectCore 6 SBC.

ConnectCore® 6 SBC v3 Hardware Reference Manual 11
ConnectCore 6 SBC Interfaces
DC-in connector
The ConnectCore 6 SBC has a +5V DC-In power connector (J1) to provide power to the system. A DC-Jack connector is
used to connect the DC-In power supply.

DC-in connector
ConnectCore® 6 SBC v3 Hardware Reference Manual 12
Power LED
A green LED near the power connector shows the status of the power input. This LED is ON when a valid power
supply is present. If the power supply voltage is higher than 5.5V the overvoltage protection circuit will block the
power supply input and the power LED will turn off.
Overvoltage protection
An overvoltage protection circuit is implemented on the ConnectCore 6 SBC. If the voltage value of the DC-In
supply signal is higher than 5.5V the supply input is disconnected of the system.
CAUTION! The maximum input voltage of the ConnectCore6 SBC should never exceed the 12 VDC. Voltages
over this limit may cause permanent damage to the board.
5V load switch
The ConnectCore 6 SBC has several interfaces that have to be powered from a 5V supply. This supply comes from
a Load switch, whose input comes directly from the DC Power Jack showed above. The SIP32401A is a slew rate
controlled load switch designed for 1.1V to 5.5V operation. The SIP32401A features a low voltage control logic
interface which is commanded by the PWR_EN signal (PMIC_GPIO7). On low power mode this load switch will be
disabled. The following table lists the interfaces of the ConnectCore 6 ABC that are sourced from the Load switch.
LED Signal Note
POWER VSYS Green LED
Interface Comments
LVDS0 Supply for the backlight of the LVDS0 display
LVDS1 Supply for the backlight of the LVDS1 display
HDMI Supply for the HDMI display
Parallel display Supply for the parallel display
5V power connector Supply for external circuitry

SBC coin cell connector
ConnectCore® 6 SBC v3 Hardware Reference Manual 13
SBC coin cell connector
The ConnectCore 6 SBC provides a 2-pin, 1.25mm pitch straight connector for connecting an external coin cell or
super capacitor to power the RTC interface when the main supply is off. If higher voltage is present on the main
supply, it will be used as a power source for the RTC.
The following table shows the pinout of the coin cell connector.
There are three types of components that can be connected to this connector: Lithium coin cells (Primary cell:
non-rechargeable), Lithium coin cells (Secondary cell: rechargeable), and Supercaps. When a Primary Lithium
coin cell is connected, the PMIC backup battery charger must be turned off and this pin is used strictly as an
input. It is hazardous to attempt to charge Primary Lithium cells as they may vent or explode. Secondary Lithium
coin cells are only made available directly to manufacturers of equipment that could use them, in that case they
are normally required to design their product to prevent the user gaining access to this part since there is a
danger to the user if by replacing it, they fit a primary type (the only sort that they are likely to be able to source)
into the charging circuit. When a Secondary Lithium coin cell is used, both the charging current and the
termination voltage are programmable. When a Supercap is used, both the charge current and termination
voltage should be set to the maximum values.
The advantage of using a Primary Lithium coin cell is that the energy density usually allows years of service since
the self discharge rate is low. The advantage of using a Secondary Lithium coin cell is that the self discharge rate
is usually sufficient to allow a few months of support for the RTC before it will need recharging. The advantage of
the Supercap is that it is intrinsically safe and can out-last the Primary Lithium coin cell option, however the self
Pin Signal Comments
1 VCC_LICELL Power supply for RTC
2GND Ground

5V supply connector
ConnectCore® 6 SBC v3 Hardware Reference Manual 14
discharge rate is high meaning that a 1F capacitor at 25° C is likely to support the RTC for approximately five to
ten days.
A programmable constant charge current charger with a programmable top-off charging voltage is provided for
charging of Secondary Lithium-Manganese coin cell batteries and super capacitors. Charging current is
programmable from 100uA to 6mA. Termination voltage is programmable from +1.1 to +3.1V.
The minimum voltage of the coin cell supply is +2V. The maximum voltage of the coin cell supply is +3.6V.
5V supply connector
The ConnectCore 6 SBC provides a 2-pin, 1.25mm pitch straight connector with a regulated 5V supply for
powering external circuitry. The 5V supply is generated on the on-board 5V regulator and it's also used on the
ConnectCore 6 SBC on the USB, displays and camera interfaces. The maximum current available on the 5V
connector is 1A.

3.3V supply connector
ConnectCore® 6 SBC v3 Hardware Reference Manual 15
3.3V supply connector
The ConnectCore 6 SBC provides a 2-pin, 1.25mm pitch straight connector with a regulated 3.3V supply for
powering external circuitry. The 3.3V supply is generated on a buck regulator of the ConnectCore 6 module and
it's used to power several interfaces on the ConnectCore 6 module and on the ConnectCore 6 SBC. The maximum
current available on the 3.3V connector is 1A.
SBC boot configuration

SBC boot configuration
ConnectCore® 6 SBC v3 Hardware Reference Manual 16
SBC boot source jumpers
The ConnectCore 6 SBC provides two jumpers to configure the boot source.
Boot mode
ConnectCore 6 SBC provides four resistors to configure the boot mode. These resistors are used to override the
boot mode configuration selected on the ConnectCore 6 module. By default these four resistors are not
populated and the ConnectCore 6 SBC will boot with the default boot mode selected on the module.
Pos1 Pos2 Comments
Off Off Boot from eMMC
Off On Boot from Micro-SD
On Off Boot from SATA
On On Reserved

Power and reset functions
ConnectCore® 6 SBC v3 Hardware Reference Manual 17
The following table shows the resistors configuration for the different boot modes.
Note A different resistors configuration than the ones listed on the table might prevent the ConnectCore 6 SBC
from booting.
Power and reset functions
The ConnectCore 6 SBC provides a “Power” button that supports the following functionality:
R24 R25 R28 R29 Boot Mode
Not populated Not populated Not populated Not populated Module default boot mode
Not populated Not populated populated populated Boot from Fuses
Not populated Populated populated Not populated Serial Downloader
Populated Not populated populated Populated Boot from board settings
Function Description
Power On Short press when the board is OFF.
Power Off Long press for 10 seconds when the board is ON or in SLEEP mode.
Wake-up Short press when the board is in SLEEP mode.
Sleep Short press when the board is ON.

JTAG
ConnectCore® 6 SBC v3 Hardware Reference Manual 18
The ConnectCore 6 SBC provides a "Reset" button, used to reset the ConnectCore 6 module. When the reset
button is pressed the main power supply is disconnected, powering off all the circuitry on the board.
JTAG
The ConnectCore 6 SBC provides a tag connect footprint for accessing the i.MX6 JTAG Debug port. The pinout of
the JTAG connector is compliant with the 10pin standard ARM JTAG. The following table shows the pinout of the
JTAG connector.
Pin Signal Comments
1 3.3V Supply voltage of the JTAG interface
2 JTAG_TMS Test mode state signal
3GND
4 JTAG_TCK Test clock signal
5GND
6 JTAG_TDO Test data output signal
7-
8 JTAG_TDI Test data input signal
9GND
10 POR_N Board reset/CPU reset

SWD
ConnectCore® 6 SBC v3 Hardware Reference Manual 19
SWD
The ConnectCore 6 SBC provides a tag connect footprint for programming and debugging the Kinetis
microcontroller assistant of the ConnectCore 6 module. The pinout of the SWD connector is compliant with the
10pin standard SWD. The following table shows the pinout of the SWD connector.
Pin Signal Comments
1 VLDO_MCA Supply voltage of the Kinetis MCA
2 SWD_DIO SWD bidirectional data pin
3GND
4 SWD_CLK SWD clock signal
5GND
6-
7-
8-
9GND
10 MCA_RESET_N Reset signal for Kinetis MCA

SBC console port
ConnectCore® 6 SBC v3 Hardware Reference Manual 20
SBC console port
The ConnectCore 6 SBC provides a 3pin, 1.25mm pitch connector for the debug console port. The UART4 port of
the ConnectCore 6 module is used as console port. An RS232 transceiver is used on the SBC to convert the port to
standard RS232 levels. The following table shows the pinout of the SWD connector.
Pin Signal Comments
1 CONSOLE_TX RS232 transmission line
2 CONSOLE_RX RS232 reception line
3GND