User`s manual

This form of arbitration occurs on any bus request level (0 - 3) selected.
However, because of the bus request level priority, a module requesting the
DTB from bus request level 3 would be granted the DTB before a module
requesting the bus from request level 0, 1, or 2.
NOTE In multiple mainframe systems, (data transfer) bus arbitration must be
provided by the Agilent E1482B VXIbus Extender Module and not by the
Command Module.
What is Command
Module Memory
The standard Agilent E1406A comes equipped with 1.25 Mbytes of flash
ROM, 512 Kbytes of non-volatile RAM, and 256 Kbytes of shared RAM.
The module’s memory configuration and usage is shown in Figure A-1.
Non-Volatile RAM
512 Kbytes *
1 Mbytes
2 Mbytes
Shared RAM
256 Kbytes*
none
Flash ROM
1.25 Mbytes *
1.75 Mbytes
* = standard configuration
Command Module Memory
- operating system
- device drivers
- device drivers
- IBASIC programs and data, RAM disk
- system parameters
- available to VXIbus system
Contents
Figure A-1. Agilent E1406A Memory Configuration
A-4 Terms and Definitions C-Size Configuration Guide