Programming; Introduction; Xvme-678/688 Memory Maps - Xycom XVME-678 Manual

Chapter 4 -
PROGRAMMING
4.1 INTRODUCTION
The XVME-678/688 is fully PCI AT compatible, and runs a wide range of software designed for 'the IBM
PCI
AT. Because it is designed to meet both
PCI
AT and VMEbus standards, its programming capabilities
exceed that of either a typical
PCI
A T or VMEbus processor.
This chapter provides information needed to program the
XVME-678/688
module. The information is
presented as follows:
• Module memory maps (as seen by the CPU)
• DRAM, EPROM memory
• Real Mode Window accesses
• 1/0 port addresses, registers, and descriptions
• Interrupts
• Byte-swapping
• System resource functions
• CMOS RAM
4.2 XVME-678/688 MEMORY MAPS
Figures 4-1 through 4-5 on the following pages show the XVME-678/688 1, 2, 4, 10, and 16 Mbyte
memory maps as they appear to the on-board processor.
4-1