Specifications

Chapter 2 Product Overview
6 Reference Manual CoreModule 420
Product Description
The CoreModule 420 SBC is an exceptionally high integration, high-performance, 486-based PC
compatible system in the PC/104 form factor. This rugged and high quality single board system contains
all the component subsystems of a PC/AT motherboard plus the equivalent of several PC/AT expansion
boards.
In addition, the CoreModule 420 SBC includes a comprehensive set of system extensions and
enhancements that are specifically designed for embedded systems. These enhancements ensure fail-
safe embedded system operation, such as, a watchdog timer. It is designed to meet the size, power
consumption, temperature range, quality, and reliability demands of embedded applications. The
CoreModule 420 requires a single +5V power source.
The CoreModule 420 SBC is particularly well suited to either embedded or portable applications. Its
flexibility makes system design quick and easy. It can be stacked with Ampro MiniModules or other
PC/104-compliant expansion board, or it can be used as the computing engine in a fully customized
application.
Module Features
• CPU
♦ Provides 133 MHz x86 based STPC ATLAS microprocessor
♦ Fully supports PC compatible architecture
♦ Provides 8 kB Unified Instruction and Data Cache
♦ Provides Parallel Processing Integrated Floating Point Unit
♦ Provides Low Power and System Management Modes
• Memory
♦ Provides 64 MB standard SDRAM (soldered on the board)
♦ Supports 100 MHz Clock Speed
♦ Provides 32-pin bytewide memory socket
• Supports a DiskOnChip
®
device
♦ 1 MB Flash memory
• Stores system BIOS
• Stores system Setup parameters and manufacturing information
• Supports battery-free boot capability
• 768 kB available for OEM use
• PC/104 Bus Interface
♦ Supports clock speeds up to 8.25 MHz
• IDE Interface
♦ Supports two enhanced IDE devices
♦ Provides Fast ATA-capable interface for high-speed PIO modes
(PIO modes 0 to 4)
♦ Supports ATAPI and DVD peripherals
♦ Supports IDE native and ATA compatibility modes