EPSON ActionPC 7000, ActionTower 7000, Endeavor 486i

System I/O Address Map

 

 

 

 

 

 

 

 

 

Hex address

Assigned

device

 

000-01F

DMA

controller

1,

 

8237

020-03F

Interrupt controller

1, 8259

1 022-024

Reserved

 

 

 

 

 

040-05F

Timer,

8254

 

 

 

 

060-06F

Keyboard controller, 8242PE

070-07F

Real-time clock NMI (non-maskable Interrupt)

1 080-09F

1DMA page register, 74LS612

0A0-0BF

Interrupt controller

2, 8259

0C0-0DF

DMA

controller

2,

 

8237

0F0

 

Clear

math

coprocessor

1OF1

 

Reset

math

coprocessor

0F8-0FF

Math

coprocessor

 

1F0-1F8

Primary hard

disk

Interface

1E0-1E7

Secondary

hard disk Interface

1 200-207

1Game I/O

 

 

 

 

 

278-

27F

Parallel printer

port 2

2B0-2DF

Alternate enhanced graphics adapter

2E1

 

GPIB

(adapter

0)

 

 

12E2, 2E3

1Data acquisition (adapter 0)

2F8-2FF

Serial

port

2

 

 

 

 

300-31F

Prototype

card

 

 

 

360-363

Available

 

 

 

 

 

1 368-36B

Available

 

 

 

 

 

378-37F

Parallel printer

port 1

380-38F

Available

 

 

 

 

 

390-393

Available

 

 

 

 

 

1 3A0-3AF

Available

 

 

 

 

 

3B0-3BF

Available

 

 

 

 

 

3C0-3CF

Available

 

 

 

 

 

3D0-3DF

Available

 

 

 

 

 

13F0-3F7

Diskette drive

controller

3F8

-3FF

Serial

port 1

 

 

 

 

6E2,

6E3

Available

 

 

 

 

 

790-

793

Available

 

 

 

 

 

1AE2, AE3

Available

 

 

 

 

 

B90,

B93

Available

 

 

 

 

 

EE2,

EE3

Available

 

 

 

 

 

1390-1393

Available

 

 

 

 

 

122E1

 

Available

 

 

 

 

 

2390-2393

Available

 

 

 

 

 

42E1

 

Available

 

 

 

 

 

63E1

 

Available

 

 

 

 

 

182E1

 

Available

 

 

 

 

 

A2E1

 

Available

 

 

 

 

 

C2E1

 

Available

 

 

 

 

 

E2E1

 

Available

 

 

 

 

 

Serial port connector pin assignments (J4 and J5)

Pin

Signal

 

 

Pin

Signal

 

 

1

Data carrier detect

 

6

Data

set

ready

 

2

Receive

data

 

7

Request

to send

 

3

Transmit

data

 

8

Clear

to

send

 

4

Data terminal ready

 

9

Ring

indicator

I

I5

1Ground

 

II

I

 

 

 

Keyboard and mouse connector pin assignments (J1 and J3)

Pin

Signal

Pin

Signal

1

Data

4

V c c

2

N C

5

Clock

3

Ground

6

N C

VGA port connector pin assignments (J7)

LED connector pin assignments (J21)

Pin

Signal

 

 

Pin

Signal

1

N C

 

 

11

Power LED (yellow)

2

Turbo

LED

(yellow)

12

N C

3

Turbo

LED

(white)

13

Power LED (white)

4

N C

 

 

14

N C

5

N C

 

 

15

N C

6

N C

 

 

16

N C

7

N C

 

 

17

Speaker (red)

8

NC

 

 

18

NC

9

Hardware reset (white)

 

 

 

 

 

 

 

 

HDD LED connector pin assignments (J15)

Pin

1 Signal

1 Pin

 

1Signal

1

 

1Red

 

 

 

Power supply connector pin assignments (J9)

Connector Pin Assignments

Parallel port connector pin assignments (J6)

6

Data 4

15

Error *

 

24

Signal

ground

7

Data 5

16

lnit *

 

25

Signal

ground

8

Data 6

17

Selectin

*

 

 

 

9

Data 7

18

Signal

around

 

 

 

* Active low logic

Diskette dke connector pin assignmL&s (112)

Pin*

1 Signal

 

 

 

 

2

 

1NC

 

 

 

 

4

 

N C

 

22

Write data

6

 

N C

 

24

Write enable

8

 

Index

 

26

Track 0

10

 

Motor A

 

28

Write protect

12

 

Drive B

 

30

Read data

14

 

Drive A

 

32

Select header 0

16

 

Motor B

 

34

Disk change

18

 

Direction

 

 

 

 

* All odd-numbered pins are grounds

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