A

Configure and Environment Commands

Table A-1. ENV Command Parameters (Continued)

ENV Parameter and Options

Default

Meaning of Default

 

 

 

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

00000000

This register will allow the VMEbus

Address #4

 

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

00000000

This register deÞnes which bits of the

#4

 

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

Yes, Enable the Short I/O Address

[Y/N]

 

Decoder.

 

 

 

Short I/O (VMEbus A16) Control

01

Works the same as Slave Control #1.

 

 

Default is $01.

 

 

 

A-12

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Motorola MVME187 manual This will be the local bus address