Digi ConnectCore 8X Guida rapida per l'utente

ConnectCore 8X

SBC Express

Hardware Reference Manual -- Preliminary

Revision history—90002296

Revision Date Description

1P December 2018 Initial release

2P October 2019 Added XBee socket note.

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or in the product(s) and/or the program(s) described in this manual at any time.

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Product name and model

Product serial number (s)

Firmware version

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ConnectCore® 8X SBC Express Hardware Reference Manual -- Preliminary 2

ConnectCore® 8X SBC Express Hardware Reference Manual -- Preliminary 3

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Contents

About the ConnectCore 8X SBC Express

Features and functionality 4

Block diagram 6

Interfaces

Connectors, jumpers, and switches 8

Top view 8

Bottom view 9

Description 9

Input power connector 10

Coin cell connector 10

Boot mode 10

Power and reset buttons 11

SWD 12

Console port 12

microSD 13

10/100Mbps Ethernet 13

LVDS/MIPI-DSI display 13

LVDS 14

MIPI-DSI 15

Touch controller 16

USB host 16

XBee 17

Expansion connector 18

USB device 21

User LED and button 21

About the ConnectCore 8X SBC Express

The ConnectCore 8X SBC Express is an ultra-compact board featuring the Digi ConnectCore 8X

system-on-module (SoM). The ConnectCore 8X system-on-module integratesan NXP i.MX 8X

application processor with LPDDR4 and eMMC flash memory, WLAN/Bluetooth, power management IC

for optimized power consumption applications, and a Microcontroller AssistTM (MCA) for 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

nConnectCore 8X System-on-module

li.MX 8X Dual/Quad ARM Cortex-A35 and single Cortex-M4F cores.

l2 GB, 32-bit LPDDR4-1200 memory.

l8 GB, 8-bit eMMC memory.

lIEEE802.11 a/b/g/n/ac and Bluetooth 4.2.

n5V DC-in power jack connector.

nBoot source configuration: internal eMMC, microSD, USB.

nCoin-cell connector to supply the on-module real-time clock (not populated by default).

nPower and reset buttons.

nDebug:

lSingle Wired Debug (SWD) interface for the Microcontroller AssistTM (MCA).

lTTL Serial console.

nStorage:

lmicroSD card.

nCommunication:

l10/100 Mbps Ethernet interface.

lTwo USB Host 2.0 with stacked USB A-type connectors.

lUSB device with micro AB USB connector (shared with one USB host port).

lXBee socket supporting XBee Cellular (USB bus shared with one of the USB host port).

nExpansion

lExpansion connector that can accommodate Raspberry PI Hat boards.

lAdditional expansion header row, not populated by default.

ConnectCore® 8X SBC Express Hardware Reference Manual -- Preliminary 4

About the ConnectCore 8X SBC Express Features and functionality

ConnectCore® 8X SBC Express Hardware Reference Manual -- Preliminary 5

nUser interface:

lx1 User LED.

lx1 User button.

nDimensions:

l87 x 63 mm

About the ConnectCore 8X SBC Express Block diagram

ConnectCore® 8X SBC Express Hardware Reference Manual -- Preliminary 6

Block diagram

Interfaces Block diagram

ConnectCore® 8X SBC Express Hardware Reference Manual -- Preliminary 7

Interfaces

Connectors, jumpers, and switches 8

Top view 8

Bottom view 9

Description 9

Input power connector 10

Coin cell connector 10

Boot mode 10

Power and reset buttons 11

SWD 12

Console port 12

microSD 13

10/100Mbps Ethernet 13

LVDS/MIPI-DSI display 13

Touch controller 16

USB host 16

XBee 17

Expansion connector 18

User LED and button 21

Interfaces Connectors, jumpers, and switches

ConnectCore® 8X SBC Express Hardware Reference Manual -- Preliminary 8

Connectors, jumpers, and switches

Top view

Interfaces Bottom view

ConnectCore® 8X SBC Express Hardware Reference Manual -- Preliminary 9

Bottom view

Description

Connector Interface Manufacturer Manufacturer part number

J4 Coin cell Molex 53047-0210

J5 Console Molex 53047-0410

J6 Ethernet XMultiple XMG-9799-8821-100D-L1TO-H-

HIM

J7 LVDS Hirose DF14A-20P-1.25H

J8 MIPI-DSI FCI SFW15S-2STE1LF

J9 USB Host KYCON KUSBX-AS2N

J10 USB OTG KYCON KMMX-ABSMT5SG-30TR

J11 Expansion header Wurth

Electronics

61304021121

Interfaces Input power connector

ConnectCore® 8X SBC Express Hardware Reference Manual -- Preliminary 10

Connector Interface Manufacturer Manufacturer part number

J12-J13 XBee module Samtec SQT-110-01-F-S

J14 3V3_EXT Samtec TSW-102-07-G-S

J15 VIN Samtec TSW-102-07-G-S

J16 VCC_MCA Samtec TSW-102-07-G-S

J18 Touch controller Sullins GBC05SBSN-M89

J19 MCA SWD (not populated by

default)

Samtec FTSH-105-01-F-DV

Input power connector

A 5V DC-in power jack connector (J2) provides power to the ConnectCore 8X SBC Express system.

From this 5V power supply, a 3.3V LDO generates the power supply for the on-module MCA.

Coin cell connector

A 2-pin, 1.25 mm pitch straight connector (J4), not populated by default, can be used to connect an

external coin cell battery or supercap for powering the system's real-time clock (RTC) when the main

power supply is removed.

The RTC can be powered 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 VCC_LICELL Power supply for RTC

2 GND

Boot mode

By default, the ConnectCore 8X system-on-module boots from the internal board settings, allowing it

to boot from the internal eMMC flash memory. For advanced functionality, the ConnectCore 8X SBC

Express provides two switches (S3) to configure the SoM boot mode:

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