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