National semiconductor Cop400-e02 User manual

User's

Manual

COP400-E02

In-Circuit

Emulator

Card

~National

U Semiconductor

420305896-001

1

Introduction

,.,

The

CQP4QO-E02

enables the user

to

perform

in-circuit emulation

of

the

410L, 411L, 420L, 420,

421

L,

and

42

1 members

of

the

COP4QO

Microconlroller

family

. The

emulator

card

may

be

used stand-alone with PROMs and external power

supply

, or as a peripheral

to

the COP400 Product

Development System (PDS). When used

in

conjunction

with

the

PDS, the

E02

Emulator gives

the

user

the

added

capabilities

of

real-time

program tracing, breakpoint/single-stepping, and

speedy program updating. The net result is rapid

program evol

ut

ion

fr

om conception through debug

10

final product.

THE USER

SHOULD

READ THIS

MANUAL

THOROUGHLY

BEFORE ATTEMPTING

COP4XX

EMULATION

.

2General Description

,.,

2.1

Physical Features

The

E02

Emulator

is

a 5 x 6-inch double-sided

printed

circuit

board mounted on

lour

D.S-inch

nylon stand-(lifs. Figure

2.1

contains

a drawing

of

the board

with

its

emulator

cables removed. The

workhorse

of

the

board Is

the

COP402 ROM-less

Microcontroller

found

lop-center

on

the

board.

To

the left

of

the

402 are 4 single-in-line

connectors

and one 2D-pin socket used as receptacles tor the

DIP-la-DIP

emulato

r cables.

In

the

center

of

the

board are

two

MM52D4 PROM sockets. The PROM

socket l

abe

led "PROM 0"

is

for COP addresses

O-X'IFF,

and the

socket

labeled "PROM

1"

is

for

addresses X'200-X'3FF. Below

the

PROM sockets

at

the

bottom

of

the board Is a 50·pin edge

connector used

to

interface

to

the

rear

of

the

Product Development System via

the

PDS emulator·

card cable.

1

of

this

cable should

match

up

with pin 1

of

the edge connector which

is

located

in

the

lower right·hand corner

of

Figure

2.1.

NEVER

CONNECT

OR DISCONNECT THE E02

CARD FROM THE PDS EMULATOR CARD

CABLE

WHILE THE PDS IS TURNED

ON;

PERMANENT

• PDS AND/OR E02

DAMAGE

MA Y RESUL

T.

Figure 2.1. COP400·

E02In

·Circult Emulator

layout

2.2

Jumpers

The

E02

card Is equipped

with

4 sets

of

wire-wrap

pin jumpers.

Jl,

J3, and J4 are

located

to

the right

of

the

402

while

J2

is

in

the

upper left-hand corner

of

the

board.

2.2.1

J1

Jl

is really a set

of

seven

jumpers

with

a

ma

x

imum

of

three connected at

anyone

time.

Jl

is

used

to

select

the

signal assignments

of

pins

13,

14

, and

15

on

the

20'pin COP411L

emulator

cable

socket.

For 411L operation

Jl-1,

JI-4,

and

JI-6

should be

jumpered.

In

order

to

emulate other 2o-pin COP400

devices not mentioned in this document, the user

should

contact

the factory for

the

necessary

Jl

configuration.

2.2.2 J2

J2

jumpers

the

+5

volt power bus on

the

E02

to

the

Vcc

of

the

402 and

emulator

cables. THE USER

MUST NOT CONNECT HIS SYSTEM POWER

SUPPLY

TO

THE

PDS

SUPPLY VIA THE

4XX

EMULATION CABLES. This could

destroy

one

or

both

supplies. Consequently, J2 should be removed

if

the

E02

Is connected

to

the

PDS and

the

user's

system power

is

connecte

d

to

the

4XX

emulator

cables. On the

other

hand,

if

the

E02

is

being used

stand-alone with external

power

supplies

J2

may

be

left

In

place

with

no

harmful

effect.

It

should

be

noted

that

the

target system's power

should

be

adequately bypassed

to

eliminate

spurious

malfunctioning

of

the

402 due

to

power

glitches.

2.2.3 J3

The

E02

Emulator Card

is

supplied with a 3.5MHz

RC

oscillator

for user

emulation

convenience. J3

jumpers the

output

of

this

oscillator

into

the CKI

input of the COP402 and the CKI pins

of

the

emulation

cable sockets. J3 should be removed If

the user plans to generate

his

own

clock

external

to

the

E02

card. Section

3.2

contains

more

information

concerning J3 and

E02

clock

timing.

2.2.4 J4

J4 connects CKO

of

the COP402 and

emulation

cable sockets

10

11

of

U7

. J4

should

be

jumpered if

the

user

is

planning on replacing

the

74lS14

of

U7

with

any

of

the

component

carriers

desc

rib

ed

In

Section 3.2

of

this

manual.

2.3

Turret

Terminals

Th

e

E02

card

contains

8 turret·type terminals

suitable for temporary

connections

via

"alligator

clips,"

"Q·balls,"

etc. Three

of

these

terminals

are

used for

E02

power, four are used as

logic

inputs

to

the

PDS,

and the last

is

a

logic

output

of

the

PDS.

'-3

2.3.1

E02

Emulator Power Terminals

Two supplies

(+5

and

-12VDC)

are needed

to

operate the

E02

card stand-alone with MM5204

EPROMs. These voltage

inputs

and

their

return can

be

supplied

to

the

board via

the

three

terminals

located on

the

left edge

of

the

board marked Vee,

-12V,

and GND. THESE POSTS AAE NOT MEANT

TO ALLOW THE USEA ACCESS

TO

PDS SUPPLIES.

They are

to

be used for

supplying

power

to

the

emulator

card when

it

Is being used independently

01

the PD

S.

Typical power

consumption

of

the

E02

with

2 EPROMs Is

150mA

for Vee and

30mA

for

the

-12

volt Input. For single

+5

volt operation using

two

DM74S474

bipolar

PAOMs (see Section

3.3)

the

Vee current drain is

approximately

300mA.

2.3.2 External Event Terminals

Four External Event Terminals

(EX1-

EX4)

are

located

on

the

right side

of

the

E02

board. The

logical Inputs

(TIL

levels) on these high impedance

pins

are stored in TRACE memory along with

COP402 program counter values and

the

skip line

status

during a TRACE operation.

In

addition,

transit

ions

on E

XI

and

EX2

may be used

to

initiate

TRACE or BREAKPOINT operations. For more

information

concerning

the

External Event

Terminals

consult

Chapters 2 and 9

of

the

COP400

Product Development System User's Manual.

2.3.3 Trigger Out

Trigger Out

(TO)

is

located

directly

beneath

EX1-EX4

on

the

E02

Emulator. TO

is

an open·

collector

(150 ohm pull·up

to

Vcd

PDS

output

that

makes a positive

transition

each

time

a TAACE

or

BREAKPOINT

is

initiated.

TO

will

continue

to

make

positive tra[Jsitions every 256 trigger

conditions

following

the actual TRACE or BAEAKPOINT.

In

certain

applications

TO

Is useful for triggering

oscilloscopes

or

logic analyzers.

2:4

Reset

Switch

Located

In

the

lowe

r

left

corner

of

the

E02

Emulator, the Aeset

switch

clears

the

COP402

program counter, registers, and

outputs

when

depressed. The COP402

will

remain in

this

"reset"

condition

until

the

switch

is

released. Depressing

this

switch

will

also

cause

the

RESEr

pin {open-

collector

output,

5k

ohm

pull-up

to

Vee>

on

the

emulator

cable

sockets

to

go low. Aesetting

the

COP402 via

the

PDS program COPMON's "AU

command (see Chapter 9

of

the

PDS User's Manuaf)

has

the

same

effect

as depressing

the

Aeset

switch

and

holding

it down.

2.5 Edge

Connector

Assignments

The 50·pin edge connector located at

the

bottom

of

the

E02

card provides a means

of

interfacing

to

the

connectors EMULATOR 1 and EMULATOR 2 located

on the rear panel

of

the

PDS.

Table

2.1

contains

the

names and a

brief

description

of

each signal

that

passes over

the

cable between the

E02

and

PDS.

2-'

Table 2.1. Edge

Connector

Assignments

Connector

No. Nama Description

GND

Signal and

power

return

GND Signal and power return

Vee

+5

VDC power from PDS

Vee

+5VDC

power from ?DS

EX2

Bul1ered External Event (see

2.3.21

EXI Bul1ered External Event

EX4

Bul1ered External Evenl

EX3

Buffered External Event

ClK

Buflered ADiDATA' signal from

COP402

10

"

H

"

19

2Q

SKIP

AS

A9

A3

A7

.,

A2

..

AO

A6

A5

21

Not

Used

22

AlO

23

Not Used

24

Not Used

25

Not Used

26 Not Used

27

Not Used

28 Not Used

29 Not Used

30

Not Used

31

Not

Used

32

Not Used

COP402 skip

status

line

COP402 program

counter

address

bit

Address bit

Address

bll

Address

bit

Address

bit

Address bit

least

significant

address bit

Address

bit

Address

bit

Most

signilicant

address

bit

33

SO

least

sig

nificant

CO?

object

code

bll

34

B7 Most

signilican

t

CO?

object

code

bit

35 B2 Object code bit

36

B5 Object code bit

37

B3 Object code bit

38

84

Object code bit

39

86

Object code bit

40

Bl

Object

code

bit

41

TRIGGER OUT BREAKPOINTITRACE

indicator

(see 2.3.3)

42

Not Used

Rsr

Same

as

RESEr

(see

2.4)

44

PROM

DISABLE" Selects

PROM

or

Shared Memory mode

45 -12V

-12VDC

from PDS for

E02

PROMs

"

47

48

50

-1

2V

Vee

ONO

-12VDC

lrom

PDS for

E02

PROMs

+5VDC

power from PDS

+5VDC

power from PDS

Power and signal return

3Operating Considerations

3.1

Emulator Cables

The user should

lake

careful

note

of

the

orientation

of

pin 1 on

the

various

emulator

cable

sockets

(see

Figure 2.

1).

The

20

'pin socket in

the

upper

left

corner

of

the

E02

Emulator

is

presently used for

emulating

the

COP411L. Pin 1

of

the device

cable

should be oriented

away

from the

center

of

the

board as marked. The

four

SIPs to the

right

of

this

connector

are

configured

as

24-

and 28-pin

emulator

sockets. Pin 1

fo

r

both

of

these

sockets

is

oriented

toward

the

center

of

the

card. The

24

'pin

socket

may

be used

for

emulating

the

410L, 421L,

and

421

. The 28-pin

socket

is

intended

to

emulate

the 420L and 420. Three DIP·'o-DIP cables

(20-

,

24-,

and 28-pin) are supplied

with

the

E02

card

for

user

emulation

purposes.

ONLY

ONE

COP400

FAMILY

DEVICE

MAY

BE EMULATED AT A TIME.

,

I

\\.....--

•

3.2

Clock

Timing

3.2.1

RC

Oscillator

As

staled

previously, the

E02

Emulator

is

equipped

with

an on-board 3.5 MHz RC

oscillator

lor

user

convenience. The frequency

of

this

oscillator

may

be

lowered

by replacing

the

74LS14

of

U7

with

a

74C04 and

altering

the

values

of

At,

R2,

and C4

(see Figure 2.1)

to

the

ones shown In Table 3.1. It

should be noted

that

the

fastest

specified

instruction

cycle for the 4XXl devices is

16~s.

Although

the COP402 has a

guaranteed

maximum

instruction

cycle

of 10f,ls,

emulation

at

somewhat

slower speeds Is reliable.

Table

3.1.

RC

Oscillator

Component

Values

Osclll.IOI' Instruction

R1

R2

C'

Frequency Cycle

'C, 'C,

~A

(MHz)

."

680 680

27

2.0 6

1.7k

27

" "

I,Ok

J.Ok

"0

LO

16

'

.0<

'

.0<

H"

0'

32

3.2.2 Crystal

Oscillator

The COP402 on the E02

Emulator

has

a

crystal

option

which

enables the user

to

emulate

with

a

crystal contrOlled

clock

.

Unfortunately,

emulator

cable

capacitance

and

inductance

preclude

the

use

of

the

crystal

on the

user's

prototype

system. This

limitation

may be

circumvented

by replacing the

74LS14

(U7)

with

a 14·pin

component

carrier

containing

the

circuil

shown

in

Figure 3.1,

installing

J3,

Installing

J4, and removing

pins

CKI

and CKO

of

the

emulator

cable

from

the

emulator

cable

socket. This

last

step

is

necessary because

cable

capacitance

will upset the

crystal's

stability.

Table

3.2

contains

the

various values

of

Rx1, Rx2,

and Cx needed for 3 standard

crystal

frequencies.

CKI

"

8

::rr

Cx

COP402

RXL

RXl

CKO

11

L'

14

·

P1N

COMPONENT

CARRIER

Figure

3.1.

Cryst.l

Osclll.tor

Component

C.rrler

Schematic

3·2

Table 3.2.

Crystal

Osclll.tor

Component

Values

XTAL

Inltructlon

R.,

R"

C.

Frequ.ncy Cycl.

'C, 'C,

'pA (MHz)

."

1.

0k

1.0M

27

' .

00

'.0

1.

0k

1.0M 21 3.56

..

,

,,.

1.0M

..

2.09 "

3.2.3

LC

Oscillator

In a

similar

fashion,

U7

may be replaced

with

a

14·p

ln

carrier

con

tai

ni

ng

components

for

an LC

oscillator.

Figure 3.2

shows

the

schematic

and

Table

3.3

contains

sample values

for

a COP402 LC

oscillator.

COP402

'"

CKO

RU

Figure

3.2. LC

Osclll.tor

Schematic

Table 3.3. LC

Oscillator

Component

V.lues

oscmator InalrucUon

RU

RL2

cu

CL2 L

Freq~ncy

Cycl.

,C, ,C,

~A

'pA .

"'

(MHz)

."

10.

0M

'"

LOO

'00 22 '.0

'.0

IO

.O

M

'"

500

'00 22 3.0

'.3

'O.

OM

'" 200 500 22 2.6 6.2

IO.OM

'"

200

2""

22

L'

11.4

3.3 Bipolar PROMs

For s

ing

le

supp

ly

+5

volt

ope

ration

,

the

E02 card

may

be

modified

to

accept DM74S474

or

DM74S475

bipolar

PROMs. The

holes

for

these PROMs are

located

directly

above

the

EPROM

sockets

on

Figure

2.1

and are labeled S296 (the

part's

such.

4Funclional

Verification

41

Correct operation

01

the

CQP400-E02 Em

ulator

Card can best be verified by

connecting

the

E02

card

to

a

PDS

and

emulating

a small COP400

family

program. Such a program and helps

may

be

found in Section 3.3

of

the

PDS User's

Manual

. By

using

the

debug routines contained

in

COPMON

and the

"coaching"

of

PDS User's

Manual

Section

3.3,

the

user

should

be able

to

verify correct

operation

01

the

emulator's

program counter,

external event inputs, skip line, and general internal

workings. External

circuitry,

an

oscilloscope,

or

a

l

ogic

analyzer may be

helpful

In examining

the

emulated COP420

output

pins. The user

may

wish

to connect several

of

the 420

outputs

in

this

example

to

the

External Event Terminals (

EX1-

EX4)

to

gain

a better under

standing

of

the

practical

use

of

Ihese

inputs

durIng Ihe COPMON TRACE and

BREAKPOINT commands. (See Chapter 9

of

the

PDS User's Manua/.)

5What

to

Do

If

...

Due to

the

E02

card's

intimate

relationship

with

the

user's

hardware

and physical

location

external to

the

PDS,

it

is

extremely vulnerable

to

misuse

and

destruction

by careless hands. The user should

always observe

that:

1.

Power supplies are adequately bypassed and

of

the correct voltage.

2.

PDS

power is not

connected

to

user power.

3.

Cables are

correctly

installed.

4.

Device

input/output

ratings

are

not

exceeded.

5.

PROMs are in their correct sockets and properly

oriented.

6.

The COP402 is receiving a valid

clock

signal.

If a

mishap

or

malfunction

does

occur,

National

Semiconductor's

Microcomputer

Technical Support

Manager

will

be

happy

to

help you

at

(408) 737-6803.

Questions

concerning

actual

operation

of

the

E02

card or

customer

use

of

a COP400 device may be

referred

to

the

COPS

Application

Group at

(408) 737·5582.

Alternately,

if

the

E02

should develop a problem

and

circumstances

do

not

allow

sufficient

time

to

send it

back

to

National,

there

is

a series

of

COPMON

commands

that

may be used

to

isolate

the

faulty

component(s). Before

attempting

the

fOllowing

diagnostic

aids,

the

user

should

study

Chapter 9

of

the

PDS User's

Manual,

Section 2.5

of

this

manual, and

the

schematic

supplied

with

the

E02

Emulator. The user

will

also

need a

functiona

l

PDS

and PDS

emulator

card cable.

Step

1

With power turned

off,

connect

the

E02

to

the

PDS.

5

-1

Step 2

Turn

power

on, load COPMON, and

specify

chip

number

as 440.

Example:

§

EXEC,

REv:A

COPMON, REV:B

CHIP NUMBER (OEFAULT=

42Q)

?

440

SYSTEM INITIALIZED

FOR

E04

EMULATOR

Specifying

the CHIP NUMBER

to

440

will

allow

the

E02

to access all of shared memory even

though

A10 should always be

logic

low for

the

E02.

Step

3

load

shared

memory

with

ClRA

(object

code =

X'CO)

instructions.

C>DE

O,OIL

Step

4

Specify and perform a TRACE IMMEDIATE.

C>!BJ

TRACE ENABLED:

1M

ED

OCCUR: 1 PRIOR OGO:N

C>Q

COPMON should come

back

with

the

following

message:

TRACED

ON

IMED

AT

A:OOO

If it does not, then

the

elK

signal

described

in

Section 2.5 is

not

being generated

by

the

eOP402

andlor

is

not

reaching the

POS.

Probable

faulty

circuits:

eOP402

(U4)

B1LS95

(UB)

The user

should

also

verify

that

the

eOP402

is

receiving a valid

clock

input.

Given that COPMON d

id

execute

the

TRACE

properly,

the

COP

program counter should

now

be

examined with the TYPE command.

c>!!

0

A:OOO

E:1111

A

:OOO

E:1111

A:OOO

E:l111

A

:OOO

E:1111

,

A:OOO

E:1111

5 A

:OOO

E:l111

6 6 A

:OOO

E

:ll

11

7 A

:OOO

E:ll11

8

A:OOO

E:l111

9 A:

OOO

E:

ll1

I

"

10

A

:OOO

E:l111

" " A

:OOO

E:l111

12 12 A:

OOO

E:ll11

" " A

:OOO

E:l111

" "

"00

E

:l

111

15

A:OOO

E:ll

11

Note

all

the

address values (A:XXX)

shown

are zero.

This

is

correct because the TRACE

operation

was

begun before COPMON let RST"

/R

ESET" go

10

a

high

level. If one

or

more

of

the

E02

program

counter

bits

are

stuck

high,

the

TYPE command

might yield

the

follow

ing

information

:

C>

!!

0 0 A:009

E:ll11

A:009

E:ll11

A:009

E:ll11

3 A

009

E:l11 1

,

4A:009

E;I111

5 5 A:009 E:l111

6 6 A:009

E:ll11

7 A:009

E:,,,,

8 8 A:009 E:1111

9

9A:009

E:l111

"

10

A:009

E:ll11

"

11

A:009

E:ll11

12 12 A:009 E:l111

"

13

A:009 E:

l111

" " A:009

E:ll11

With this

information

the

user can generally isolate

which address line (AO- A

10)

is

malfunctioning.

Probable

faulty

circuits:

S1LS95

(US)

S1lS95

(U14)

74lS37317

4C373

(U12)

5-2

Step

5

Another TRACE IMMEDIATE

command

will

test

RST"IRESET" and proper binary

operation

of

the

address lines.

C>

.Q.

TRACED

ON

IMEO

AT

A;()lB

C>

!!

0 A:01B

A:01C

A:0

1D

3 A:01E

, A:01F

5

A:02Q

8 8 A:021

A:022

A:023

9 A:024

" "A:025

11

" A:026

12 12 A:021

" 13 A:028

" " A:029

15 15

A:0

2A

C>

!!

16

A:02B

17

11 A:02C

18

A:02D

19

A:02E

20

A:

02F

" " A:030

22 22 A:031

"

23

A:032

" 24 A:

033

25

2!\

A:034

26

A:035

27

27 A:03e

26

28

A:037

"

29

A:038

30

30 A:039

31 31

A:03A

E:1111

E:l111

E:ll11

E:l111

E:ll11

E:l111

E

:l111

E:l111

E:ll11

E:l111

E:

ll11

E:l111

E:lll1

E:l111

E

:l111

E:ll11

E:l111

E:ll11

E:l111

E:1111

E:l111

If

the

RST"IRESET*

line

is

stuck

low

,

the

addresses

shown above would have remained at zero.

Probable

faulty

circuits:

COP402 (

U4)

• PDS

The COP addresses from

this

second TRACE

IMMEDIATE operation

should

be inspected for

monotonically

increasing binary values from 0

to

3FF and wrap·around from

3FF

to

O.

This can be

done by

additiona

l TRACE

and

TYPE

commands.

If several address

lines

are shorted or

nonoperative, a TYPE

comm

and

might

yield

program

counter

values like the

following

:

C>!Y

0 o A:38B E:l111

,A:38B

E:ll11

2 A

:380

E:ll11

3 3 A:

380

E:l111

• •A:38F E:

ll11

5 5 A:38F E

:l

l11

6 A:399

E:ll11

7 A:399

E:ll11

8 8 A:39B E:

ll11

9 9 A:39B E

:ll

11

" " A:390 E:l111

" " A:390

E:ll11

" " A:39F

E:lll1

" "A:39F E:l1

11

" " A:399 E:l111

" " A:399

E:

l l

11

C>

!!

" 16 A:398

E:

l

111

" 17 A:39B

E:lll1

" " A:

390

E:l111

" " A:390 E:

ll1

1

20 20 A:39F E:l111

" " A:39F

E:

l111

22 22

A:3A9 E:

l1

11

23 23 A:3A9 E;

II11

" 24 A:3AB E:

ll11

25

25 A:3AB

E:ll11

26 26 A:3AD E:l l11

" 27 A:3AO E:l111

28 28 A:3AF E:l111

29 29 A:3

AF

E:ll11

30

JO

A:3A9 E:l

111

" "

A:3A9

E:l111

Pr

oba

ble

faulty

circuits:

81

LS95 (

UI4

)

B1LS951UBj

74LS373174C373

(U12)

Step 6

Given proper operation of the

E02

card

to

this

point,

the

actual program da

ta

bits

(80-87)

will

now be tested by inserting various

jump

commands

into

memory and using TRACE

to

verify that the

jump

occurred. If

the

E0

2

fails

any of

the

f

ollowing

tests,

the

probable

fault

y c

ir

cuit

is

:

• 81

LS95

(Ul

l)

In

sert a ju

mp

to

location

0 at address 3E and set

up, execute, and l

is

t

the

trace.

5·3

c>pu 3E,

JP

0

C>TR

3E, I, 0

TRACE ENABLED:

A:03E OCCUR: 1 PRIOR: 0 GO: N

C>Q

TRACED

ON

A:03E

AT

A:01E

C

>

~

0 0 A:03E

A:ooo

A:OOI

3 A:002

•A:003

E:l111

E:

ll11

E:l111

E:ll11

11

the

second TRACE memory loc

ation

does not

co

ntain

A:OOO

, then

the

E02

is

n

ot

recognizing the

JP 0 Instruction (

object

co

de = X'

CO)

properly. If the

JP

0 is working, then

high

levels on

86

and 87 from

the P

DS

are being re

cogn

ized by

the

E02.

Proper

high

levels on

80

-

85

may

now

be

tested

by

successively replacing the JP0

inst

ruction

with

the

following

jumps

: JP 1 (X'C1), JP 2 (X'C2), JP 4 (X'C4),

JP a

(x'ca),

JP

10

(X'DO),

and JP 20

(X'

EO

). The

necessary COPMON

commands

are:

c>pu 3E,

JP

1

C

>

~

TRACED ON A:03E

AT

A:03E

C

>

~

0

A:OJE

, A:

ool

2 A:002

3 A:003

•A:004

E:l111

E:

l111

E:l111

,

Note

that

the

contents

of

trace

location

1

should

be

A:001.

If

80

and

81

were

shorted

or

inoperative,

the

TYPE

command

might

yield

the

following

information:

c>§.

TRACED

ON

A03E

AT

A:03E

C>,I!

0

A:03E

A:003

A:004

A:005

A:006

A:OOl

A:008

7

A:009

8 8

A:OOA

9

A:OOB

" "

A:OOC

" "

A:OOD

12 12

A:OOE

13 13

A:OOF

" "

A:Ol0

" " A

:Ol

1

Continuing

the

test:

C>TR

3E,

1,0

TRACE

ENABLED:

A:03E

OCCUR:

1

PRIOR:

OGO: N

c>pu

3E,

JP

2

C>Q

TRACED

ON

A:03E

AT

A:03E

C>TY

0/4

A:03E

A:002

A:003

3 3 A

:00

4

A:005

c>pu

3E,

JP

4

C>Q

E:1111

E:ll11

E:l111

E:1111

E:l111

E:1111

E:l111

E:1111

E:l111

E

:1111

E:ll11

E:1111

E:l111

E:1111

E:111

1

5"

TRACED

ON

A:03E

AT

A:03E

C>TY

014

0 0

A:03E

E:l111

A:004

E:1111

A:005

E:1111

A:006

E:l111

•

A:OOl

E:1111

C>PU

3E,

JP

8

C>Q

TRACED

ON

A:03E

AT

A:03E

C>TY

0/4

o o

A:03E

E:1111

A:008

E:ll11

A:009

E:1111

A:OOA

E:1111

• 4

A:008

E:1111

C>PU

3E,

JP

10

C>Q.

TRACED

ON

A:03E

AT

A:03E

C>TY

0/4

o

A:03E

E:l111

A:Ol0

E:1111

A:Ol1

E:l111

A:012

E:l111

4

A:013

E:l111

C>PU

3E,

JP

20

C>..Q.

TRACED

ON

A:03E

AT

A:03E

C>TY

014

0

A:03E

E:l111

A:020

E:1111

A:021

E:1111

A:022

E:1111

•

A:023

E:ll11

If

the

E02

Emulator

passes

all

of

the

above

tests,

the

suppo

r

ting

circuitry

to

the

COP402

should

be

functional.

It

is

imperative

that

all

of

these

tests

be

performed

with

a

completely

operational

Product

Development

System.

A

malfunctioning

E02

card

is

difficu

lt

to

discern

from

a

malfunctioning

PDS.

If

the

user

still

experiences

difficulties

during

program

emulation,

the

Microcomputer

Technical

Support

Manager

(408-737·6803)

should

be

contacted.

National Semiconductor COP400-E02 User manual

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