Specifications

Little Board/P5i Technical Manual

1–6

1.4.1 Little Board Development Chassis

Whatever your Little Board application, there will always be a need for an engineering development cycle.

To help developers quickly assemble an embedded system, Ampro offers the Little Board Development

Chassis. It includes a power supply, 3.5 inch 1.44M floppy disk drive, IDE hard drive, speaker, I/O

connectors, a backplane for ISA and PCI expansion cards, and mounting studs for the Little Board.

The Development chassis provides a “known good” environment for your development work. You can

install the Little Board/P5i, MiniModules, or conventional expansion boards, keyboards, monitors, and

I/O devices to quickly create a platform for your hardware and software engineering needs. Often,

development chasses are used in repair and support facilities as well, and on the production floor for

system test. Contact your Ampro sales representative for more information.

1.5 Little Board/P5i SPECIFICATIONS

The following section provides technical specifications for the Little Board/P5i.

1.5.1 CPU/Motherboard

 CPU: 3.3 V or 3.1 V (VTR) Pentium processor, 100 MHz, 166 MHz, or 133 MHz (3.1 V)

 System RAM:

− Sockets for two 72-pin SIMMs, standard fast-page mode or EDO

− Supports from 8M bytes to 128M bytes total RAM

− Requires 70 Ns fast page mode SIMMs with parity or EDO SIMMs without parity

 256K level-two cache, synchronous-burst

 Shadow RAM support provides fast system BIOS and video BIOS execution

 15 interrupt channels (8259-equivalent)

 7 DMA channels (8237-equivalent)

 3 programmable counter/timers (8254-equivalent)

 Standard PC/AT keyboard port

 Standard PC speaker port with .1 watt output drive

 Battery-backed real-time clock and CMOS RAM:

− Up to 10 year battery life

− Supports battery-free operation

 Ampro Extended BIOS

1.5.2 Embedded-PC System Enhancements

 32-pin byte-wide memory socket:

− Usable with 32K to 1M byte EPROM, 32K to 512K byte Flash EPROM, 32K to 512K byte

SRAM, or 32K to 512K byte NOVRAM (Non-volatile RAM)

− External 3.6 V lithium battery converts SRAM to NOVRAM