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cExpress-AR User’s Guide PICMG COM.0 R3.0
Page 7 Copyright © 2021 ADLINK Technology, Inc.
Table of Contents
Revision History................................................................................................................................................................................................................................................................................................................. 2
Preface .................................................................................................................................................................................................................................................................................................................................. 3
List of Figures..................................................................................................................................................................................................................................................................................................................... 9
1. Introduction ...............................................................................................................................................................................................................................................................................................................10
2. Specifications.............................................................................................................................................................................................................................................................................................................11
2.1. Core System...................................................................................................................................................................................................................................................................................................................................11
2.2. Video ................................................................................................................................................................................................................................................................................................................................................12
2.2.1 Display Interface Support .............................................................................................................................................................................................................................................................................................12
2.3. Audio ................................................................................................................................................................................................................................................................................................................................................13
2.4. Expansion Busses .........................................................................................................................................................................................................................................................................................................................13
2.5. Ethernet ...........................................................................................................................................................................................................................................................................................................................................13
2.6. Multi I/O and Storage ................................................................................................................................................................................................................................................................................................................14
2.7. Trusted Platform Module (TPM).............................................................................................................................................................................................................................................................................................15
2.8. SEMA Board controller...............................................................................................................................................................................................................................................................................................................15
2.9. Debug...............................................................................................................................................................................................................................................................................................................................................15
2.10. Power................................................................................................................................................................................................................................................................................................................................................15
2.11. Mechanical and Environmental...............................................................................................................................................................................................................................................................................................16
3. Block Diagram...........................................................................................................................................................................................................................................................................................................17
4. Pinout and Signal Descriptions ..........................................................................................................................................................................................................................................................................18
4.1. Pin Summary..................................................................................................................................................................................................................................................................................................................................18
4.2. Signal Terminology Descriptions ...........................................................................................................................................................................................................................................................................................23
4.3. AB Connector Signal Descriptions.........................................................................................................................................................................................................................................................................................24
4.3.1 Audio....................................................................................................................................................................................................................................................................................................................................24
4.3.2 Analog VGA........................................................................................................................................................................................................................................................................................................................25
4.3.3 LVDS or eDP.......................................................................................................................................................................................................................................................................................................................26
4.3.4 Gigabit Ethernet ...............................................................................................................................................................................................................................................................................................................29
4.3.5 SATA .....................................................................................................................................................................................................................................................................................................................................30
4.3.6 PCI Express .........................................................................................................................................................................................................................................................................................................................31
4.3.7 LPC bus................................................................................................................................................................................................................................................................................................................................33
4.3.8 USB........................................................................................................................................................................................................................................................................................................................................34
4.3.9 SPI Bus (BIOS only)..........................................................................................................................................................................................................................................................................................................36