EQUITY I+

Connector Pin Assignments

Parallel Port Connector

Keyboard Connector

PIN

NO. SIGNAL

NAME

DIRECTION

 

DESCRIPTION

 

 

 

 

 

1

-STROBE

0

Strobe

 

2

DATA

0

0

Data

Bit

0

3

DATA

1

0

Data

Bit

1

4

DATA

2

0

Data

Bit

2

5

DATA

3

0

Data Bit 3

6

DATA

4

0

Data Bit 4

7

DATA

5

0

Data Bit 5

a

DATA

6

0

Data Bit 6

9

DATA

7

0

Data

Bit

7

ia

-ACK

 

 

-Acknowledge

PIN NO.

SIGNAL NAME

DIRECTION

DESCRIPTION

 

 

 

 

 

 

1

 

KBD CLK

I/O

Keyboard

Clock

2

 

KBD

DATA

I/O

Keyboard

Data

3

 

-KBD

RESET

0

-Keyboard

Reset

4

 

GND

 

 

Ground

 

5

-a

+5v

 

 

Power

 

6

NC

 

 

tie connection

 

 

 

 

 

 

 

11

B U S Y

 

I

BUSY

 

12

PE

 

I

Paper Empty

13

SLCT

 

I

Printer

Selected

14

-AUTO

FD

0

-Auto Paper Feed

15

-ERROR

 

I

-Error

 

16

-1NI'T

 

0

-Initialize

1 7

-SELECTIK

 

0

-Select

In

18 ^ 25 G N D

 

 

G r o u n d

 

 

 

 

 

 

 

Serial Port Connector

PIN NO.

SIGNAL NAME

 

DIRECTION

 

DESCRIPTION

 

 

 

 

 

 

 

1

NC

 

 

No connection

 

2

TRAKSMITTED

DATA

0

Transmitted Data

 

3

RECEIVED DATA

 

I

Received Data

 

4

REQUEST TO SEND

0

Request to send

 

5

CLEAR TO SEND

 

I

clear

to

send

 

6

DATA SET READY

 

I

Data

Set

Ready

 

7

SIGNAL CROWD

 

 

Signal Ground

 

8

CARRIER DETECT

 

I

Carrier Detect

 

9 - 1 9

N C

 

 

No cnnnection

 

20

DATA TRAKSMIT

READY

0

Data

Transmit Ready

 

21

N C

 

 

N o c o n n e c t i o n

 

22

RING INDICATOR

 

I

Ring Indicator

 

23-25

NC

 

 

N o c o n n e c t i o n

 

 

 

 

 

 

 

 

 

Note. The CURRENT LOOP functions are not supported. Standard RSm232C Interfacehas its function described beloi;,

Pin 9 : TRANSllIT CURRENT LOOP RETURN

Pin 11: TRWSMIT CURRENT LOOP DATA

Pin ia: RECEIVE CURRENT LOOP DATA

I/O Port Addresses

Address

 

 

 

Function

 

000-OlF DMA Controller

020 - 03F

Interrupt

Controller

040 - 05F

Timer

 

 

 

060 - 07F Programmable Peripheral Interface

080 - 09F DMA Page Register

OAX

 

NMI Mask

Register

200 - 20F

Game

Control

210-217

Expansion

Unit

21F

 

Reserved

 

278 - 27F

Parallel

Printer Port 2

260 - 2DF Alternate Enhanced Graphics Adapter

2El

 

GPIB

(Adapter 0)

2E2

-2E3

Data

Acquisition (Adapter 0)

2F8

-2FF

Serial

Port

2

300-31F

Prototype

Card

320 - 32F

Hard Disk

 

348 - 357

DCA 3278

 

360 - 367 PC Network (low address)

368 - 36F PC Network (high address)

378 - 37F Parallel Printer Port 1

380 -38F SDLC, Bisynchronous (BSC) 2

390 - 393 Cluster

3A0 - 3AF Bisynchronous (BSC) 1

380 -3BF Monochrome Display and Printer Adapter

3C0 -3CF Enhanced Graphics Adapter

3DO-3DF Color Graphics Monitor Adapter

3F0 - 3F7 Floppy Disk Controller

3F8-3FF Serial Port 1

1184 RTC Address Register (write only)

1185 RTC Data Register

EQI+ -2

12/12/88

Equity Series Computers