Table of Contents
EBX-37 Reference Manual
vi
SPX Expansion Bus (J23) ................................................................................................. 49
VersaLogic SPX Expansion Modules ................................................................. 49
SPI Registers ........................................................................................................ 50
Audio (J26) ....................................................................................................................... 53
eUSB Solid State Drive (J27) ........................................................................................... 53
System Interrupts and I/O Devices
................................................................................. 54
Interrupts ........................................................................................................................... 54
On-board I/O Devices ....................................................................................................... 55
Special Registers
............................................................................................................ 56
PLED and Product Code Register .................................................................................... 56
PLD Revision and Type Register ..................................................................................... 57
Special Control Register ................................................................................................... 58
Appendix A – References
................................................................................................ 59
Appendix B – Custom Programming
.............................................................................. 60
PLD Interrupts .................................................................................................................. 60
Interrupt Control Register .................................................................................... 60
Interrupt Status Register ...................................................................................... 61
8254 Timer Control Register ............................................................................................ 62
8254 Timer Base Address ................................................................................................. 64
A/D and D/A Control/Status Register .............................................................................. 65
System Test Register ........................................................................................................ 65
