Epson ActionPC 8000 Specifications download pdf (Page 8)

EPSON ActionPC 7000, ActionTower 7000, Endeavor 486i

System I/O Address Map

Serial port connector pin assignments (J4 and J5)

Signal

Data carrier detect

Data set ready

Receive data

Request to send

Transmit data

Clear to send

Data terminal ready

Ring indicator

Hex address

000-01F

020-03F

Assigned device

DMA controller 1, 8237

Interrupt controller 1, 8259

1 022-024

Reserved

Ground

I I

040-05F

060-06F

070-07F

Timer, 8254

Keyboard controller, 8242PE

Real-time clock NMI (non-maskable Interrupt)

Keyboard and mouse connector pin assignments (J1 and J3)

1 080-09F 1

DMA page register, 74LS612

Signal

Data 4

Vcc

NC 5 Clock

3 Ground 6 NC

0A0-0BF

0C0-0DF

0F0

Interrupt controller 2, 8259

DMA controller 2, 8237

Clear math coprocessor

OF1

Reset math coprocessor

VGA port connector pin assignments (J7)

0F8-0FF

1F0-1F8

1E0-1E7

Math coprocessor

Primary hard disk Interface

Secondary hard disk Interface

1 200-207 1

Game I/O

278-

27F

2B0-2DF

2E1

Parallel printer port

Alternate enhanced graphics adapter

GPIB (adapter 0)

2E2, 2E3

Data acquisition (adapter 0)

2F8-2FF

300-31F

360-363

Serial port 2

Prototype card

Available

LED connector pin assignments (J21)

Signal

Power LED (yellow)

Turbo LED (yellow)

Turbo LED (white)

Power LED

(white)

1 368-36B

Available

378-37F

380-38F

390-393

Parallel printer port 1

Available

4 NC

5 NC

6 NC

14 NC

15 NC

16 NC

Speaker

(red)

1 3A0-3AF

Available

3B0-3BF

3C0-3CF

3D0-3DF

Available

1 3F0-3F7

Diskette drive controller

9 Hardware reset (white)

HDD LED connector pin assignments (J15)

3F8

-3FF

6E2, 6E3

790-

793

Serial port

Available

AE2, AE3 Available

B90, B93

EE2, EE3

1390-1393

Available

Pin 1 Signal

1 Red

Pin 1 Signal

22E1 Available

Power supply connector pin assignments (J9)2390-2393

42E1

63E1

Available

82E1 Available

A2E1

C2E1

E2E1

Available

Diskette

dke

connector pin

assignmL&s

(112)

Connector Pin Assignments

Pin* 1 Signal

1 NC

Parallel port connector pin assignments (J6)

4 NC

6 NC

8 Index

10 Motor A

Drive B

14 Drive A

16 Motor B

Direction

22 Write data

24 Write enable

26 Track 0

Write protect

30 Read data

Select header

Disk change

Data

Error *

Signal ground

Data

lnit *

Signal ground

Data

Selectin *

Data

Signal around

* All odd-numbered pins are grounds

* Active low logic

8 - ActionPC 7000, ActionTower 7000, Endeavor 486i 5/19/95

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Epson ActionPC 8000 Specifications Page 8

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