ENV - Set Environment
http://www.motorola.com/computer/literature
6-9
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Memory Size Enable [Y/N] = Y?
Memory Size Starting Address = 00000000?
The default Starting Address is $00000000.
Memory Size Ending Address = 02000000?
The default Ending Address is the calculated size of local memory. If
the memory start is changed from $00000000, this value will also need
to be adjusted.
DRAM Speed in NANO Seconds = 60?
The default setting for this parameter will vary depending on the speed
of the DRAM memory parts installed on the board. The default is set
to the slowest speed found on the available banks of DRAM memory.
ROM First Access Length (0 - 31) = 10?
This is the value programmed into the MPC105 “ROMFAL” field
(Memory Control Configuration Register 8: bits 23-27) to indicate the
number of clock cycles used in accessing the ROM. The lowest
allowable ROMFAL setting is $00; the highest allowable is $1F. The
value to enter depends on processor speed; refer to your
Processor/Memory Mezzanine Module User’s Manual for appropriate
values. The default value varies according to the system’s bus clock
speed.
Note
ROM First Access Length is not applicable to the MCP750. The
configured value is ignored by PPCBug.
Y
Memory will be sized for Self Test diagnostics
(Default).
N
Memory will not be sized for Self Test diagnostics.
