HIEE400103R0001可编程控制卡件，ABB使用产品
详细的处理器内存映射，包括建议的CHRP和PREP兼容内存映射，请参阅MVME2600系列单
附录D中列出的Board Computer Programmer参考指南，相关文件。
PCI本地总线内存映射PCI内存映射由Raven MPU/PCI总线桥控制控制器专用集成电路和通用PCI/VME总线桥专用集成电路。
HIEE400103R0001可编程控制卡件这个Raven和Universe设备调整系统映射以适应给定的通过可编程地图解码器寄存器应用。不存在默认PCI内存映射。重置系统会使PCI地图解码器关闭，并且必须在软件中对其进行重新编程预期应用。
有关详细的PCI内存映射，包括建议的CHRP和PREPcompatible内存映射，请参阅MVME2600系列单板附录D中列出的《计算机程序员参考指南》，相关文档
VMEbus内存映射VMEbus是可编程的。与MVME2603/2604的其他部分一样内存映射，VMEbus查看的本地资源映射硕士学位因应用而异。Universe PCI/VME总线桥ASIC包括一个用户可编程的VMEbus到本地总线接口的映射解码器。地址Universe的翻译功能使处理器能够访问任何VMEbus上的地址范围。VMEbus映射的建议，包括建议的CHRP和可在MVME2600系列中找到与PREP兼容的内存映射单板计算机程序员参考指南，列在附录D，相关文件。第2-9页的图2-2显示了从VMEbus主机的角度来看的整体映射方法。编程注意事项良好的编程实践表明，每次只有一个MPU具有MVME2603/2604控制寄存器的控制。特别值得注意的是：
❏ 修改地址映射的寄存器
❏ 需要两个周期才能访问的寄存器
❏ VMEbus中断请求寄存器
For detailed processor memory maps, including suggested CHRP- and
PREP-compatible memory maps, refer to the MVME2600 Series Single
Board Computer Programmer’s Reference Guide, listed in Appendix D,
Related Documentation.
PCI Local Bus Memory Map
The PCI memory map is controlled by the Raven MPU/PCI bus bridge
controller ASIC and by the Universe PCI/VME bus bridge ASIC. The
Raven and Universe devices adjust system mapping to suit a given
application via programmable map decoder registers.
No default PCI memory map exists. Resetting the system turns the PCI
map decoders off, and they must be reprogrammed in software for the
intended application.
For detailed PCI memory maps, including suggested CHRP- and PREPcompatible memory maps, refer to the MVME2600 Series Single Board
Computer Programmer’s Reference Guide, listed in Appendix D, Related
Documentation.
VMEbus Memory Map
The VMEbus is programmable. Like other parts of the MVME2603/2604
memory map, the mapping of local resources as viewed by VMEbus
masters varies among applications.
The Universe PCI/VME bus bridge ASIC includes a user-programmable
map decoder for the VMEbus-to-local-bus interface. The address
translation capabilities of the Universe enable the processor to access any
range of addresses on the VMEbus.
Recommendations for VMEbus mapping, including suggested CHRP- and
PREP-compatible memory maps, can be found in the MVME2600 Series
Single Board Computer Programmer’s Reference Guide, listed in
Appendix D, Related Documentation. Figure 2-2 on page 2-9 shows the
overall mapping approach from the standpoint of a VMEbus master.Programming Considerations
Good programming practice dictates that only one MPU at a time have
control of the MVME2603/2604 control registers. Of particular note are:
❏ Registers that modify the address map
❏ Registers that require two cycles to access
❏ VMEbus interrupt request registers
