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Table A-1. ENV Command Parameters (Continued)
ENV Parameter and Options
Size of Local Memory Board #0
Size of Local Memory Board #1
Slave address decoders setup. The slave address decoders are use to allow another VMEbus master
to access a local resource of the MVME166. There are two slave address decoders set. They are set
up as follows.
Slave Enable #1 [Y/N]
Slave Starting Address #1
Slave Ending Address #1
Slave Address Translation Address #1
Slave Address Translation Select #1
Slave Control #1
Slave Enable #2 [Y/N]
MVME166IG/D2
Set Environment to Bug/Operating System
Default
Meaning of Default
02000000
You are prompted twice, once
00000000
for each possible MVME166
memory board. Default is the
calculated size of the memory
board.
Y
Yes, Setup and enable the Slave
Address Decoder #1.
00000000
Base address of the local
resource that is accessible by the
VMEbus. Default is the base of
local memory, $0.
01FFFFFF
Ending address of the local
resource that is accessible by the
VMEbus. Default is the end of
calculated memory.
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 local resource that is
associated with the starting and
ending address selection from
the previous questions. Default
is 0.
00000000
This register defines which bits
of the address are significant. A
logical one "1" indicates
significant address bits, logical
zero "0" is non-significant.
Default is 0.
03FF
Defines the access restriction for
the address space defined with
this slave address decoder.
Default is $03FF.
Y
Yes, Setup and enable the Slave
Address Decoder #2.
A
A-7
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