General
Information—MicroLab
|
Instruction
Features
With
some
personality
cards,
the
MicroLab
|
is
capable
of
operating on
a
stand-alone
basis.
When the personality
card
is
installed,
and
a
microprocessor
or
microcomputer
is
installed
in
the
personality
card,
the
MicroLab
|
becomes
a
complete mini-computer.
Front Panel
The
MicroLab
|
can be
operated
completely from
the
front
panel. There’s
no
need to
connect
a
terminal, or any
other
support
devices.
The
front panel
features
include
®
An
8-digit,
7-segment
LED
display. The display
shows
you address
and
data
information,
as
well
as
commands
and error messages.
@
A
25-key keypad used
for
command,
data,
and
address
entry.
1/O
Ports
Three I/O
ports
are
available on
the
MicroLab
|:
@
An
RS-232-C compatible
1/O
port configured
for
use
with
a
terminal.
The
terminal
is
not totally
supported
in
the
MicroLab
|
operating system.
Certain keypad
commands
will
send data
toa
terminal
connected
to
this
port.
An
RS-232-C compatible
1/O
port configured
for
use
with a modem. The
modem
port
is
not
supported
in
the
MicroLab
|
operating system.
©
A
cassette
tape
serial
|/O
port using
the
“Kansas
City”
recording format. The
cassette
port
is
fully
supported
by
the
MicroLab
|
operating
system. The
cassette
tape
recorder used
must
be supplied
by
you,
and cannot
be
ordered from Tektronix,
Inc.
The
MicroLab
|
also
contains
a
bus expansion connector
that
allows you to directly
access
the
microprocessor’s
data,
address, and
control
lines.
Memory
The
MicroLab
|
contains
4K x
8-bit
RAM.
This
RAM
can
be
reconfigured
into
a
2K
x
16-bit
format
for
use
with 16-bit
personality cards.
In
both
the
2K
and
4K
configuration,
a
1K-byte block
of memory
is
software relocatable
1-2
Diagnostics
The MicroLab
|
is
capable
of
performing
the
following
testing
routines.
@
Internal
self-test routines
are included
for MicroLab
|
performance
verification
@
External
test
routines
are available
for verifying
the
operation
of
an Emulator
Processor
and Prototype
Control
Probe.
Firmware
The MicroLab
|
operating system
is, in
most cases,
contained
within
PROM
devices
on
the
personality card
used. Some personality cards require
that the
MicroLab
|
operating
system
be
loaded
from
a
disc,
via
a
microprocessor
development system. The
MicroLab
|
operating
system
has
the
following capabilities.
@
Hexadecimal display
and
modification
of
memory
or
register contents.
@
Program start, program
interrupt
(with
some
personality
cards),
and
program
continue
from
the
keyboard.
@
Program dump
to
and
load
from
the
optional
cassette
tape
recorder.
@
Eight
user-definable
function
keys.
FUNCTIONAL
OVERVIEW
The MicroLab
|
is
divided
into
two major operational
sections:
the
MicroLab
|
mainframe, and the personality
card.
These
two
sections are
shown
in
Fig.
1-2.
The
personality card contains the
microprocessor
device,
a
PROM-based
monitor
for
the
MicroLab
|,
memory
address
decoding, control signal
generation, and I/O
decoding
logic.
The MicroLab
|
mainframe contains the
remainder
of
the
circuitry, including
RAM,
that
is
required
for
microprocessor operation.
@
Summary of Contents for 067-0892-00
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