Contents
VL-EPMs-21 Reference Manual v
System RAM.....................................................................................................................22
CMOS RAM.....................................................................................................................22
Resetting CMOS Setup to Factory Defaults........................................................22
Clearing the Real-Time Clock.............................................................................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 and Reset Button Functionality ................................................................24
Watchdog Timer ...............................................................................................................25
Interfaces and Connectors...........................................................................................26
SUMIT Connectors (J1-J2)...............................................................................................26
Ethernet Interface (J3)....................................................................................................... 28
Ethernet Connector .............................................................................................. 28
Ethernet Status LEDs...........................................................................................28
Video Interface (J4 and J6)...............................................................................................29
Display Control....................................................................................................29
Configuration.......................................................................................................29
LVDS Flat Panel Display Connector................................................................... 30
Compatible LVDS Panel Displays.......................................................................31
VGA Output.........................................................................................................31
Console Redirection.............................................................................................32
IDE / PATA Interface (J5)................................................................................................33
Loading Software onto a Disk On Module Device..............................................34
Main I/O Connector (J7)...................................................................................................35
Serial Ports........................................................................................................................36
COM Port Configuration .....................................................................................36
Serial Connector Pin Functions ...........................................................................37
USB Interface ................................................................................................................... 38
Programmable LED..........................................................................................................38
Internal Speaker................................................................................................................38
Pushbutton Reset............................................................................................................... 38
Audio ................................................................................................................................39
PC/104 (ISA) Expansion Bus (J9-J10).............................................................................40
PC/104 I/O Cycle Support...................................................................................40
PC/104 Memory Cycle Support...........................................................................41
IRQ Support......................................................................................................... 41
DMA and Bus Master Support ............................................................................41
SPX Expansion Bus (J13).................................................................................................42
VersaLogic SPX Expansion Modules..................................................................42
SPI Registers........................................................................................................43
System Resources and Maps.......................................................................................46
Memory Map ....................................................................................................................46