Intel MCS48 User Manual page 32

INTRODUCTION
At this point, there are
two
paths
available to
the
designer/programmer and two
types
of
design
development
aids provided
by
Intel
to
simplify
the procedures.
One
system,
called
PROMPT
48,
is
a
low
cost
development
system which supports machine language
programming
and
the
second
is
the
Intellec
Microcomputer Development System which
supports both
machine and assembly
langu-
ages.
For those
of
you
unfamiliar with the
advantages and
disadvantages
of
machine
and assembly languages
see Section
1.2.
1.3.5
PROMPT
48
PROMPT
48
is
a
low
cost design
aid
consisting
of:
an
8748 processor
to
execute
programs,
control circuitry to
provide
debug
functions
such
as single step
and break
points, a
monitor
program
stored
in
ROM,
an
EPROM
programmer, and
a hexa-
decimal keyboard and
display.
There
are
two
processor sockets on
the
front of
PROMPT
48,
one
for
programming
the
8748 and
one
in
which
a
programmed
8748 executes
its
program
while
under
control of the
monitor
routine.
Use
of
PROMPT
48
involves the following
steps:
1.
Loading an
application
program
into
the
PROMPT RAM
memory
via
Hex
keyboard
or
external terminal
(TTY and RS232
interface
provided).
2.
Inserting
an erased 8748
in
the
program-
ming
socket
and
transferring
the application
program
to
its
internal
EPROM.
3.
Transferring
programmed
8748
to
execu-
tion
socket
where program
is
executed
and
debugged
under
control of the monitor.
The
monitor
routine allows the
user to single
step
this processor,
examine
or
modify
all
internal registers
and
data
memory;
or
to
run
at
full
speed and
stop the processor
at
predetermined
breakpoints.
PROMPT
48
50
I/O
PORTS
CONNECTOR
2
prompt
48
PROGRAMMING
SOCKET
EXECUTION
SOCKET
ImonI
|
INT
]
IusrI
l""n
i
iny.
COMMAND/FUNCTION GROUP
l
c
a
~~i
u o
(_
i-
i
/_/
/
/
/_/
/ /
COMMANDS
HEX DATA/FUNCTIONS
EXAMINE/
MODIFY
REGISTER
GO
WITH
BREAK
POINTS
DO
on
on
OH
DISPLAY/
MODIFY
MEMORY
HHHE
HGEE
51
DEE
1-14