4-8
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Modifying the Environment
4
Size of Local Memory Board 0
0000 0000
You are prompted twice, once for each
possible MVME167P memory board. The
default is the calculated size of the memory
board.
Size of Local Memory Board 1
0000 0000
ENV asks the following series of questions to set up the VMEbus interface for the MVME167P
modules. You should have a working knowledge of the VMEchip2 as described in the
MVME1X7P Single Board Computers Programmer’s Reference Guide in order to perform this
configuration.
The slave address decoders are used to allow another VMEbus master to access a local resource
of the MVME167P. There are two slave address decoders set. They are set up as follows:
Slave Enable #1 [Y/N]
Y
Yes, set up and enable Slave Address
Decoder #1.
Slave Starting Address #1
0000 0000
Base address of the local resource that is
accessible by the VMEbus. Default is the
base of local memory, $0.
Slave Ending Address #1
000F FFFF
Ending address of the local resource that is
accessible by the VMEbus. Default is the end
of calculated memory.
Slave Address Translation Address
#1
0000 0000
This register allows the VMEbus address and
the local address to differ. The value in this
register is the base address of the local
resource that is associated with the starting
and ending address selection from the
previous questions. Default is 0.
Slave Address Translation Select
#1
0000 0000
This register defines which bits of the
address are significant. A logical "1"
indicates significant address bits, logical "0"
is non-significant. Default is 0.
Slave Control #1
03FF
Defines the access restriction for the address
space defined with this slave address
decoder. Default is $03FF.
Slave Enable #2 [Y/N]
N
Do not set up and enable Slave Address
Decoder #2.
Table 4-1. MVME167P Configuration Settings (continued)
ENV Parameter and Options
Default
Meaning of Default
