
Contents
VL-EPM-24 Reference Manual v
System RAM.....................................................................................................................22
CMOS RAM.....................................................................................................................22
Resetting CMOS and RTC ..................................................................................22
CMOS Setup Defaults ......................................................................................................22
Default CMOS RAM Setup Values.....................................................................23
Real Time Clock...............................................................................................................23
Setting the Clock..................................................................................................23
ACPI Power Management ................................................................................................23
S3 Sleep State......................................................................................................23
Setup....................................................................................................................23
Entering Standby Mode.......................................................................................24
Wakeup................................................................................................................ 24
Power Button Functionality.................................................................................24
Watchdog Timer...............................................................................................................25
Interfaces and Connectors .........................................................................................26
Ethernet Interface (J5) ...................................................................................................... 26
Ethernet Connector..............................................................................................26
Ethernet Status LEDs...........................................................................................26
Video Interface (J11)........................................................................................................27
Configuration.......................................................................................................27
LVDS Flat Panel Display Connector...................................................................27
Compatible LVDS Panel Displays ......................................................................28
VGA Output.........................................................................................................28
Console Redirection ............................................................................................29
IDE / PATA Interface (J3)................................................................................................30
Loading Software onto a Disk on Module Device ..............................................31
Main I/O Connector (J4)...................................................................................................32
Serial Ports........................................................................................................................33
Serial (COM) Port Configuration........................................................................33
Serial (COM) Port Connector Pin Functions.......................................................34
USB Interface ...................................................................................................................35
USB Client Mode ................................................................................................36
Programmable LED..........................................................................................................36
Internal Speaker................................................................................................................36
Pushbutton Reset ..............................................................................................................36
Audio ................................................................................................................................37
Expansion Buses...............................................................................................................37
PC/104-Plus (PCI + ISA) AND PCI-104 (PCI only)..........................................37
PC/104 I/O Cycle Support...................................................................................38
PC/104 Memory Cycle Support...........................................................................38
IRQ Support.........................................................................................................38
DMA and Bus Master Support............................................................................ 38
SPX Expansion Bus (J6)...................................................................................................39
VersaLogic SPX Expansion Modules .................................................................39
SPI Registers........................................................................................................40
System Resources and Maps.....................................................................................43
Memory Map ....................................................................................................................43