Reference Manual

Contents
About the ConnectCore® 8X
Features and functionality 6
Module variants 8
Block diagrams 9
ConnectCore 8X module 9
NXP i.MX 8X application processor 10
SOM revisions 10
Identify the SOC revision of your SOM 10
The ConnectCore 8X System-on-module
Power interfaces 12
Reference power architecture scheme 12
System-on-module power rails distribution 13
Electrical characteristics 16
System power-up sequence 19
RTC power and coin cell charger 19
Bootstrap 20
Wireless interfaces 21
WLAN IEEE 802.11a/b/g/n/ac 21
Bluetooth 28
PCI Express 28
Antenna ports 30
CryptoAuthentication device 31
The Digi Microcontroller Assist™ hardware 31
Reset control 32
IOs 33
Watchdog 36
Real-time clock 36
Pulse width modulation 36
Power management 37
MCA firmware update 40
IOMUX
Module pinout 42
IOMUX table 43
Extended LGAversion 61
ConnectCore® 8X System-on-Module Hardware Reference Manual --
Preliminary
4