Motorola MVME166IG manual Table A-1. ENV Command Parameters Continued, ENV Parameter and Options

A

Configure and Environment Commands

Table A-1. ENV Command Parameters (Continued)

ENV Parameter and Options	Default	Meaning of Default
Memory Search Delay Enable [Y/N]	N	There will be no delay before the
		Bug begins its search for a work
		page.
Memory Search Delay Address	FFFFCE0F	Default address is $FFFFCE0F.
		This is the MVME166 GCSR
		GPCSR0 as accessed through
		VMEbus A16 space and assumes
		the MVME166 GRPAD (group
		address) and BDAD (board
		address within group) switches
		are set to "on". This byte-wide
		value is initialized to $FF by
		MVME166 hardware after a
		System or Power-on Reset. In a
		multi-166 environment, where
		the work pages of several Bugs
		are to reside in the memory of
		the primary (first) MVME166,
		the non-primary CPUs will wait
		for the data at the Memory
		Search Delay Address to be set
		to $00, $01, or $02 (refer to the
		Memory Requirements section in
		Chapter 3 for the definition of
		these values) before attempting
		to locate their work page in the
		memory of the primary CPU.
Memory Size Enable [Y/N]	Y	Memory will be sized for Self
		Test diagnostics.
Memory Size Starting Address	00000000	Default Starting Address is $0.
Memory Size Ending Address	02000000	Default Ending Address is the
		calculated size of local
		memory.
Base Address of Local Memory	00000000	Beginning address of Local
		Memory. It must be a multiple
		of the Local Memory board size,
		starting with 0. The Bug will set
		up hardware address decoders
		so that Local Memory resides as
		one contiguous block at this
		address. Default is $0.

A-6 MVME166 Single Board Computer Installation Guide