Specifications
SETWAIT
DESCRIPTION
The
Ampro
SETWAIT
utility is used
to
initialize
the
V40 microprocessor's wait state control
registers
to
other
than
the
ROM-BIOS
deCaults. Since the deCaults within
the
ROM-BIOS
are
set
Cor
the
slowest possible device access times, it is usually desirable
to
use this utility
to
increase the speed
oC
system
operation
immediately Collowing system boot. This is
done
by
placing a
SETW
AIT
command
line
in
the
system's
AUTOEXEC.BAT
fIle.
OPERATION
Caution
SElW
AIT
provides a
high
degree
of system configuration
ftexibility,
and
even
allows
you
to create setups which may
not work. Use con figurations other than the
-normal-
examples given with caution. Refer to
the
Ampro Little
Board/PC
and
NEC V40 Microprocessor technical
manuals for additional
hardware
details.
Use
the
SETWAIT
utility
by
typing
the program's name, followed
by
one
or
more
optional
parameters,
at
the
DOS
command
prompt;
or
include
such
a
command
line
in
the
AUTOEXEC.BAT
fIle.
The
SETW
AIT
command line is
of
the
Collowing
Corm:
SElWAIT
[UMBs]
[LMBs] [UMWn] [MMWn] [LMWn] [IOWn] [RFWn]
[DMAWn]
[I]
Where:
UMB
and
LMB
-- specify
the
size
oC
the
upper
and
lower
memory
blocks
UMW,
MMW,
and
LMW
-- specify the
number
oC
wait states
in
the
upper, middle,
and
lower
memory
blocks dermed by
UMB
and
LMB
lOW
-- specifies
the
number
oC
I/O
wait states
RFW
-- specifies
the
number
oC
reCresh wait states
OMAW
-- specifies
the
number
oCOMA wait states
/
--
if
used, results
in
display
oC
status after completion
And:
s =
32,
64,
96,
128,
192,
256,
384,
512
n
= 0,
I,
2,
or
3
(0
is
not
recommended except
Cor
UMW!)
Parameters
can
be
placed
in
any
order
on
the
command
line.
Letters
can
be
upper
or
lower
case.
The
brackets, [
1,
surrounding
each
parameter
indicate
that
each
is optional.
Only
the
SETWAIT-1