
Express-TL User’s Guide PICMG COM.0 R3.0
Page 8 Copyright © 2022 ADLINK Technology, Inc.
4.3.12 I2C Bus..................................................................................................................................................................................................................................................................................................................................38
4.3.13 General Purpose I/O (GPIO).........................................................................................................................................................................................................................................................................................39
4.3.14 Serial Interface Signals...................................................................................................................................................................................................................................................................................................39
4.3.15 Power and System Management...............................................................................................................................................................................................................................................................................40
4.3.16 Power and Ground ..........................................................................................................................................................................................................................................................................................................41
4.4. CD Connector Signal Descriptions ........................................................................................................................................................................................................................................................................................42
4.4.1 USB 3.0 Extensions ..........................................................................................................................................................................................................................................................................................................42
4.4.2 PCI Express .........................................................................................................................................................................................................................................................................................................................43
4.4.3 DDI1 Port ............................................................................................................................................................................................................................................................................................................................44
4.4.4 DDI2 Port ............................................................................................................................................................................................................................................................................................................................47
4.4.5 DDI3 Port ............................................................................................................................................................................................................................................................................................................................50
4.4.6 PCIe Graphics Port (PEG)...............................................................................................................................................................................................................................................................................................53
4.4.7 Module Type Definition.................................................................................................................................................................................................................................................................................................56
4.4.8 Power and Ground ..........................................................................................................................................................................................................................................................................................................57
5. Additional Features.................................................................................................................................................................................................................................................................................................58
5.1. Module Feature Locations........................................................................................................................................................................................................................................................................................................58
5.2. Debug Connector ........................................................................................................................................................................................................................................................................................................................60
5.3. Status LEDs.....................................................................................................................................................................................................................................................................................................................................61
5.4. Exception Codes...........................................................................................................................................................................................................................................................................................................................62
5.5. Fan Connector...............................................................................................................................................................................................................................................................................................................................63
5.6. BIOS Default Reset Button........................................................................................................................................................................................................................................................................................................64
5.7. PCI Express Configuration Switch ..........................................................................................................................................................................................................................................................................................65
5.8. BIOS Boot Select ..........................................................................................................................................................................................................................................................................................................................66
6. BIOS Checkpoints, Beep Codes..........................................................................................................................................................................................................................................................................67
7. Software Support.....................................................................................................................................................................................................................................................................................................68
7.1. Windows 10 IoT Enterprise 64-bit .........................................................................................................................................................................................................................................................................................68
7.2. Yocto Linux 64-bit........................................................................................................................................................................................................................................................................................................................68
7.3. Ubuntu.............................................................................................................................................................................................................................................................................................................................................68
7.4. VxWorks 64-bit .............................................................................................................................................................................................................................................................................................................................68
8. Mechanical and Thermal.......................................................................................................................................................................................................................................................................................69
8.1. Module Dimensions....................................................................................................................................................................................................................................................................................................................69
8.2. Thermal Solutions........................................................................................................................................................................................................................................................................................................................70
8.2.1 Heatspreader: HTS...........................................................................................................................................................................................................................................................................................................70
8.2.2 Heatsink: THS ....................................................................................................................................................................................................................................................................................................................71
8.2.3 Heatsink High Profile: THSH ........................................................................................................................................................................................................................................................................................72
8.2.4 Heatsink with Fan: THSF................................................................................................................................................................................................................................................................................................73