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Revision 1

USER

I S

MANUAL

Revision B

JlB'le

11,

1980

Ccpyright

1980

Vector

Graphic

Inc.

7200-0203-03-02

Vector

ZCB

Single

Board CCJtplter

Section

Table

of

Contents

Specifications

I.

Perspective

1.1

The

ZCB

as

a system

••••••••••••••••••••••••••••••

~

•••••••••

l-l

1.2

The

ZCB

as

part

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a system

••••••••••••••••••••••••••••••••

1-1

1.

3

c::l'{J

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1-1

1.4

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1-2

1.5

I/O

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•••••••••••••

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1-2

1.5

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1

Serial

Ports

Generally

••••••••••••••••••••••

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••••••••

1-2

1.5.2

Serial

Asynchronous Communications

•••••••••••••••••••

1-3

1.5.3

Serial

Synchronous Communications

••••••••••••••••••••

1-3

1.5.4

RS-232C

Theory

•••••••••••••••••••••••••••••••••••••••

1-4

1.5.5

RS-232C

on the

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••••••••••••••••••••.••••••••••

e

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1-5

1.5.6

Paral.lel l?C)'rts

•••••••••••••••••••••••••••••••••••••••

1-6

II.

User's

Guide

2.1

Introduction

•••••••••••••••••••••••••••••••••••••••••••••••

2-1

2.1.1

Standard

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•••••••••••••••••

2-1

2.2

Cl?U

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•.••••••.••••••...••••

0

•••••••••••••••••••••••••

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2.2.1

2.2.2

2.2.3

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2.3.1

2.3.2

2.3.3

2.3.4

2.3.5

2.3.6

2.3.7

2708

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•••••••••••••••••••••••••••••••

2-6

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•••••••••••••••••••••••••••••

2-7

2.4

I/O

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2-7

2.4.1

2.4.2

2.4.3

2.4.4

Rev.

1-8

6/1l/80

I/O

Pc>rt

Mdressing

••.•••••••••••••••••••.••••••••••

2-7

Address Mirroring

disab1e/enab1e

••••••••••••••••••••

2-9

Asynchronous

Serial

Baud

Rate

Se1ection

•••••••••••••

2-11

HOw

to

connect

most

serial

terminals

and

printers

•••

2-11

Section

2.4.5

2.-4.6

2.4.7

2.4.S

2.4.9

Vector

ZCB

Single

Board Ccltplter

~

How

to

connect.

JOOSt

low speed

accustic

cooplers

•••••

2-15

COnnecting-additional

RS-232C

handshaking

lines

•••••

2-l5

USing

the

Parallel

Ports

••••••••••••••••••••••••••••

2-lS

COnnecting

Sprint

3

to

ZCB

••••••••••••••••••••••••••

2-l9

Connecting Vector

MP

to

ZCB

•••••••••••••••••••••••••

2-19

2.9 Spare

Clip-

and

Patch

areas

•••••••••••••••••••••••••••••••••

2-20

III.

'lheory

of

Operation·

3.1

System

operation

Block Diagram

•••••••••••••••••••••••••••••

3-l

3.2

Serial

Ports

•••••••••••••••••••••••••••••••••••••••••••••••

3-2

N.

Schematics

Rev.

l-B

6/ll/S0

vector

ZCB

Single

Board

COtplter

canpatibility:

Po\oter

Requirements

Availabili

ty:

EPRQ1s

included

with

board

Mem:n:y

Speed

SPOCIFlCATICNS-System

Most

5-100

systems.

+8VOC

@

970

rna.

(typ.)

+16

VDC

@

120

mao

-16

VDC

@

SO

rna.

Shi~

assenbled,

tested,

burned

in

~

no

kits.

SPECIFlCATIctS-EPRCM/RAM

65536

bytes

addressable,

1024

bytes

RAM

on

board,

3

EPRCM

sockets

on

board,

up

to

12K

addressable

nooe

RAM:

300ns.

EPRCM:

User

selected

(450.

ns.

typical)

RAM:

2114

static

EPROM:

270S,

2716,

2732

Standard

r.ocatiat

of

EOOOH-E7FEH

Systems

~i

tor

EPIOt

1?oWer-on~set

Junp

Auto

bOot on power

on/reset,

jl.mpS

to

rneIID1:Y

location

Options

EOOOS.

Shipped

enabled.

SPOCIFlCATICNS-CPU

Processor

Z-SOA

Nunber

of

Data

Bits

S

N\:mt)er

of

Mdress

Bits

16

Instructions

Clock

speed

Interrupts

I/O

devices

Dynamic

RAM

Rev.

I-B

6/11/80

15S,

including

all

78 S080

instructions

2

or

4

MHz,

j~r

selectable,

enabled

for

4 MHz.

Z-SO

Mode

0

(SOSO

rro::1e),

MODE

1,

mDE

2

256

I/O

addresses

Supports

dynamic mem::>ty

by

sending

Z-80

RFSH

on

bus

line

66

~

fast

resetlJ;:ower

on

clear

signal

generated

on

board.

•

Static

RAM

MWRITE

wai

t

state

generation

for

memories

slower

than

300

ns.

Bus

!Dad

Bufferin;

Phantan:

Mirrorin;

.

capacity

vector

ZCB

Single

Board

catpJter

Fully

canpatible

Jumper

option

to

generate

MWRITE

on

board

Standard:

option

enabled.

3

options:

generate

one

wait

state

on

each

bus

cycle,

generate

one

wait

state

after

each

Ml

instruction,

generate

no

wait

states.

Standard:

generate

one

wait

state

after

each

Ml

instruction.

1

stamard

T1'L

load

.on

all

inputs

Fan

out:

15

standard

(60 low power

shottky)

OUtput

buffer

disable

canpatible

with

Vector

Graphic

~

Boards,

which

generate

phantan

in

response

to

Power-on-clear

(PCX:).

Jumper

selectable:

on/off.

Standard:

enabled

Standard:

enabled,

can be

disabled.

SPECIFlCATICt&-I/O .

,,.--.;)

1

serial

RS-232

and

3

8-bitparallel

ports

programnablt:.

as

input

or

output.

Serial

port

1,

using

8251

controller

chip.

Port

addresses

Any

increnent

of

four

fran

OOH

to

FFH.

Preset

addresses

are:

Data,

04H

(echoed

on

06H)

1

Control,

05H

(echoed

on

07H.)

Signal

levels

EIA RS-232C

RS-232

handshakin;

Typical

handshakin;

is

provided,

ie.

RI'S, ers, OrR,

DSR,

etc.

Asynchronous

Rates

Data

bits

Step

bits

parity

Uo-9600

baw

(switch

selectable)

5 -

8,

programnable

1,

1

1/2,

or

2,

programnable

Even,

ood,

or

oone, programmable

Rev.

l-B

6/11/80

,.

~

-~

vector

ZCB

Single

Board

COtplter

Synchronous

Rates

Synch

detect

Clock

Parity

Data

bits

Sync

character

Parallel

Ports

Port

Addresses

latching

Signal

level

N\..mi:)er

of

lines

rata

transfer

cable

Rev.

1-8

6/11/80

OC-56K.

can

be

wired

for

internal

or

external

synch.

8251

SYNDET

line

is

not

connected.

N:lt

now

connected

to

the

external

\4\Orld

as

required

for

synchrcnous

operatioo.

Even,

odd,

or

none,

progranmable

5 -

8,

programmable

Single

or

double

synch

character

can

be

progtaliiled.

2-8

bit,

2-4

bit

can

be

programned as

3-8

bit.

Uses

an 8255

parallel

I/O

controller

chip.

Any

increment

of

four

fran

OOH

to

FFH.

Preset

addresses

are:

:Ebrt

A, 08H;

Port

B,

098;

:Ebrt

C,

OAH

and

the

Cootrol

Status

Register

at

000.

output

latched,

input

not

latched.

Tl'L

(i.nt:ut = 1 low power

Tl'L

load;

output

drives

1 'l"l'L

load)

•

8

lines

per

channel,

progranmable

for

input

or

output.

+5

VOC

and

GND

are

also

provided.

OVer

lOOK

bytes/second.

Cptional.

Has

34-pin

female

connector

and

34-line

ribbon

cable.

N:l

connector

is

at

the

other

end,

allowin3

user

to

configure

as

required.

r-tlst

be

ordered

separately.

Vector Graphic ZCB User manual

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