Motorola MVME187 User Manual

A-12

Configure and Environment Commands

Master Enable #4 [Y/N]

N

Do not set up and enable the Master 
Address Decoder #4. 

Master Starting Address #4

00000000

Base address of the VMEbus resource 
that is accessible from the local bus. 
This will be the local bus address. 
Default is $0. 

Master Ending Address #4

00000000

Ending address of the VMEbus 
resource that is accessible from the 
local bus. This will be the local bus 
address. Default is $0. 

Master Address Translation 
Address #4

00000000

This register will allow the VMEbus 
address and the local address to be 
different. The value in this register is 
the base address of the VMEbus 
resource that is associated with the 
starting and ending address selection 
from the previous questions. Default 
is $0. 

Master Address Translation Select 
#4

00000000

This register deÞnes which bits of the 
Translation Address are signiÞcant. A 
logical one "1" indicates signiÞcant 
address bits, logical zero "0" is non-
signiÞcant. The non-signiÞcant bits 
will come from the local bus address 
that accesses the VMEbus. Normally 
MS bits will be set, down to the size of 
memory to be accessed.Default is $0. 

Master Control #4

00

Works the same as Slave Control #1. 
Default is $00. 

Short I/O (VMEbus A16) Enable 
[Y/N]

Y

Yes, Enable the Short I/O Address 
Decoder. 

Short I/O (VMEbus A16) Control

01

Works the same as Slave Control #1.
Default is $01.