VersaLogic Python EBX-11 Reference Manual page 6

Digital I/O Interface .......................................................................................................... 51
External Connections ........................................................................................... 51
Digital I/O Port Configuration ............................................................................. 52
Interrupt Generation ............................................................................................ 52
Writing to a Digital I/O Port ................................................................................ 53
SPX™ Expansion Bus ...................................................................................................... 55
VersaLogic SPX Expansion Modules ................................................................. 55
Pulse Width Modulation Outputs and Tachometer Inputs ............................................... 56
External Connections ........................................................................................... 56
PWM Output and TACH Input Code Example ................................................... 56
PC/104 Expansion Bus ..................................................................................................... 59
PC/104 I/O Support ............................................................................................. 59
PC/104 Memory Support ..................................................................................... 59
IRQ Support ......................................................................................................... 59
DMA Support ...................................................................................................... 59
System Resources and Maps ..................................................................................... 60
Memory Map .................................................................................................................... 60
I/O Map ............................................................................................................................. 60
Interrupt Configuration ..................................................................................................... 61
Special Registers ........................................................................................................ 62
Special Control Register ................................................................................................... 62
Revision Indicator Register .............................................................................................. 62
Jumper and Status Register ............................................................................................... 63
Appendix A - References............................................................................................ 64
Appendix B - Legacy SPI Interface ............................................................................ 65
EBX-11 Reference Manual
Contents
vi