Ampro Corporation LITTLE BOARD P5X - Manual (Page 7)

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Chapter 1
Introduction
General Description
The Little Board/P5x is a high integration, high-performance Pentium-based PC/AT-compatible
system that conforms to the EBX V.1.1 specification. This rugged and high quality single-board
system contains all the component subsystems of a PC/AT PCI motherboard plus the equivalent of
up to six expansion boards. The Little Board/P5x is designed to meet the size, power consumption,
temperature range, quality, and reliability demands of embedded system applications.
Key functions on the Little Board/P5x include:
! High-speed Pentium CPU
! 64-bit wide 3.3V DRAM – up to 256M
bytes
! 512K synchronous secondary cache
! Embedded-PC BIOS in Flash EPROM
! Four buffered serial ports (with RS-232,
RS-485, TTL options)
! Two universal serial bus (USB) ports
! Infrared (IrDA) port
! Multi-mode IEEE-1284 parallel port
! Floppy controller
! Dual PCI-bus EIDE/UltraDMA drive
controllers
! Flat-panel/CRT display controller
! Adaptec UltraSCSI controller (Special
Order)
! Built-in Adaptec SCSI BIOS
! Ethernet 100BaseT LAN interface,
! Compact Flash solid-state IDE drive
support
! Standard PC keyboard and speaker
interfaces
In addition, Ampro has made many improvements to the architecture and firmware of the
traditional desktop PC to optimize it for embedded applications. Among the many embedded-PC
enhancements that ensure fail-safe embedded system operation and application versatility are a
watchdog timer, a powerfail NMI generator, serial console support, serial boot loader, batteryless
boot, failsafe boot, accelerated boot, on-board high-density Compact Flash disk, and BIOS
extensions for OEM boot customization.
System operation requires a single +5 Volt power source (and 3.3 Volts for low-voltage PCI
expansion cards, if required) and offers "green PC" power-saving modes under support of Advanced
Power Management (APM) BIOS functions.
Product Feature Summary
CPU/Motherboard
The Little Board/P5x has a fully PC-compatible motherboard architecture, with a Pentium low-
voltage CPU. It supports all Socket 7 CPUs with up to 7.5A core current. As CPUs evolve, new
versions may be offered. Contact your Ampro sales representative for current models.
For improved reliability in harsh thermal environments, the board implements a CPU thermal
sensor and configurable thermal-management control logic in the BIOS.