EPSON Equity 4+

VGA Feature Connector (CN14)

pin 1

 

 

 

pin 25

pin 2 /’

 

~oooooooooooow,

 

 

 

 

 

 

’ pin 26

 

 

 

VGA Feafwe Connector Pin Assignments‘Active low togic

DMA Assignments

Hardware Interrupts

System I/O Address Map

~~

 

 

Reat-time clock NM non-maskable interru t mask

 

 

 

OAO - OBF1 lntermpt controller 2,8259A
OCO - ODF

1

DMA controtter 2,8237A-5
OF0

 

Clear math coprocessor busy
OF1

 

Reset math coprocessor
OF8 - OFF

 

Math coprocessor
1FO - lF8

1

Harddisk

200 - 207

I Game I/O
278 - 27F

 

Parallel printer port 2

 

280 - 2DF

 

Alternate enhanced graphics adapter
2El

 

GPIB (adapter 0)
2E2 and 2E3

 

Data acquisition (adapter 0)
2F8 - 2FF

 

Serial port 2
300-31F

 

Prototype card

360 - 363

1 PC network (low address)

368-368

1 PC network (high address)
378 - 37F

 

Parallel printer port 1

380 - 38F

 

SDLC, bisynchronous 2

390 - 393

 

Cluster
82El

 

GPIB (adapter 4)

 

A2El

1

GPIB (adapter 5)

 

C2El

 

GPIB (adapter 6)

 

E2El

 

GPIB (adapter 7)

 

*I/O addresses hex 000 to OFF are reserved for the system board I/O. Hex 100 to 3FF are available on the system channel.

10/1/93

EPSON Equity 4+ 5