Compaq manual COM Express Extension Specification

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COM Express™ Extension

Specification

Rev. 013

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Contents COM Express Extension Specification This page intentionally left blank Table of Contents 2 PCI About This Document User InformationCopyright Notice Technical SupportIntroduction COM Express Extension SpecificationCOM Express Extension Design Guide COM Express Computer-On-ModuleCopyright COM Express Extension Specification Rev Objective Overview Module Size COM Express Module sizesSmall Form Factor nano, COM Express Type Figure Overview three module sizesFigure Small Form Factor nano Graphic Signal Description Signal DescriptionTable Graphic Signal Description Row C for Pin- out Type Table Graphic Signal Description Row D for Pin- out Type Tmds Clock + Tmds Clock Hardware extensions Wide Range Input Power for nano SmallFormFactor SFFGPO0 Gpio General Purpose I/O Recommended UseSdio Pin description Alternative Gpio use for Sdio InterfaceThermal Control Electrical characteristicsSoftware extensions Smart Battery Bios supportTPM support Cmos backup in Bios Legacy Super I/O support in BiosConsole redirection in Bios User editor for default settingsApendix a PC Architecture Information 1 ISA, Standard PS/2 ConnectorsBuses General PC Architecture1 RS-232 Serial PortsSerial ATA 3 USBProgramming Appendix B DOCUMENT-REVISION History