Intel MCS48 User Manual page 33

INTRODUCTION
also provides
1K
of writeable
program
memory
which
may
be used
to
debug
user
programs.
A
multiple single step feature
is
also
provided
in
which
the processor steps
through
its
program dumping
all
internal
contents
to external
RAM
where
it
may
be
later
displayed or typed out on an
external
terminal.
Paper
tape input
and
output
in
Intel's
hexadecimal format
is
also available
through
the
TTY.
1.3.6 Intellec
Development System
The
Intellec
Microcomputer Development
System
is
a
modular development system
which can be expanded
as necessary
to
meet
the
requirements
of
your
design
cycle.
The
system
consists
of
the processor
unit
which
is
based on
Intel's
8080A
microprocessor,
and
several optional units
such
as the
UPP
Universal
PROM
Programmer,
the
PTR
High
Speed
Paper
tape
reader, the
DOS
Disk
Operating System, and
the
Intellec
CRT
terminal.
To
support
the
development
of
MCS-48
systems
a
macro-assembler
ASM
48
is
available for the
Intellec
System
as well as a
personality
module
for the
UPP
which
will
program
the
EPROM
of
the 8748. Also
available
is
in-circuit
emulation
capability
with
ICE-48 which
will
allow emulation
and
debug
of user's
8048
application
programs
on
the
8080A-based
Intellec
Development
System.
The
Intellec
system
is
a
flexible
high
performance development system which can
support
Intel's
various microcomputer
fami-
lies
with various
optional
modules.
The
macro-assembler and
text editor
programs
provided allow the designer
to write
and
edit
his
programs
in
assembly language and
then
generate
the
machine
language output
necessary
to
program
the
8748
EPROM.
The
availability
of
a high speed
CRT
and
a
diskette
operating system
eliminates the
laborious input
and
output
of
paper tape
files
normally
required
during
the
assembly
process.
Finally,
ICE 48
allows the user
to
extend the resources
of
his entire Intellec
system
into the
8048 socket
of his
own
system and use
all its
emulation,
debug,
and
display
facilities directly.
1.3.7
Production
Once
a
working program
has been
achieved,
a preproduction
phase
usually follows
where
several prototype
systems
are evaluated
in
simulated
situations or
in
actual
operation
in
the
field.
During
this
period the use
of
the
8748
EPROM
allows quick
alteration of
the
application
program
when
problems
or
suggested changes
arise.
Depending on
the
magnitude and number
of future
changes
anticipated, the
first
production
units
may
also
be shipped
with
EPROM
processor.
However,
to
achieve
the
maximum
cost
reduction
potential
in
high
volume
appli-
cations, a
conversion
to
the
8048
ROM
is
usually necessary.
This
is
an easy
transition
since the
8048 and 8748
are
pin
and machine
code
compatible
equivalents.
The
user
merely develops
a
hexadecimal
tape of
his
8748 program
memory
contents using
his
Intellec
System
or
PROMPT
48 development
aid
and sends
it
to
Intel
along
with
his
8048
order.
As
the
8048
ROM's
arrive
they
can
immediately
replace the
8748
EPROMs.
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