Specifications

EPC-100 Hardware Reference
Page vi
Chapter 4 - Theory of Operation.......................................................................4-1
Introduction..................................................................................................4-1
Block Diagram..............................................................................................4-2
Processor Module Daughterboard.................................................................4-2
Cache Memory.............................................................................................4-2
Main System Memory..................................................................................4-2
Upgrading Main System Memory.................................................................4-4
Memory Map................................................................................................4-4
Interrupt Usage.............................................................................................4-5
Watchdog Timer...........................................................................................4-6
Flash Boot Device.........................................................................................4-7
Keyboard/Mouse Controller.........................................................................4-7
BIOS ROM and ROM Shadowing................................................................4-8
CMOS Save and Restore...............................................................................4-9
Ethernet Controller.......................................................................................4-9
Battery..........................................................................................................4-10
Peripheral Ports.............................................................................................4-11
RS-232 Ports.................................................................................................4-12
Parallel Port..................................................................................................4-13
Floppy Controller..........................................................................................4-13
USB Ports.....................................................................................................4-13
Front Panel Indicators...................................................................................4-14
Appendix A - Chipset and I/O Map...................................................................A-1
Introduction..................................................................................................A-1
Appendix B - Interrupts......................................................................................B-1
Appendix C - Connectors and Jumpers.............................................................C-1
Introduction..................................................................................................C-1
Keyboard andn Mouse Connectors..............................................................C-2
RS-232 Ports (COM A, COM B)..................................................................C-3
Parallel Port..................................................................................................C-3
SVGA Connector..........................................................................................C-4
RJ45 Connector............................................................................................C-4
Dual USB Connector....................................................................................C-5
SCSI-2 Connector.........................................................................................C-6
EIDE (Primary) Connector...........................................................................C-7
Floppy Disk Drive Connector.......................................................................C-8
CompactPCI J1 & J2 Connectors..................................................................C-9
Fan Failure Detect Enable Jumper................................................................C-12
SCSI Terminator Disable Jumper.................................................................C-12
Floppy Power Jumper...................................................................................C-12