Xycom XVME-653, Manual

Page: 53 / 113

Chapter 3 – BIOS Setup Menus
3-19
Table 3-15 Slave Interface Submenu
Option Description
Slave 1 (or 2, 3, or 4) Turns the slave interface On or Off . The default is Off . When turned off, other VME mas-
ters cannot access memory on the XVME-653/658.
Address Modifiers Determines which type of VMEbus slave access is permitted to read or write to the XVME-
653/658 dual-access DRAM. The first field determines whether the slave interface re-
sponds to
Data a ccess only, Program access only, or to Both program and data access.
The default is Data . The second field determines whether the slave interface responds to
Supervisory access only, Non-Privileged access only, or to Both supervisory and non-
privileged access. The default is Non-Privileged .
Address Space Determines if VME masters access the slave’s dual-access memory in the VMEbus Stan-
dard (A24) or VMEbus Extended (A32) address space. The default is VMEbus Extended .
Slave Memory Size Determines the amount of dual-access memory that is available to external VMEbus
masters when the Slave Address Space option is set to
Extended . The slave memory size
cannot be more than the total memory size or greater than 16 MB in Standard mode. The
default is 1 MB .
Slave Base Address Sets the VMEbus address of the XVME-653/658 dual-access RAM. When the Slave Ad-
dress Space option is set to VMEbus
Standard (A24), the dual-access memory must be
located on a 1 MB boundary and the upper two hex digits of the slave address are ig-
nored. When the Slave Address Space option is set to VMEbus
Extended (A32), the slave
address must be a multiple of the slave memory size. The default is AA400000 .