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EPSON Equity 4+
VGA Feature Connector (CN14)
pin
1
pin 25
~oooooooooooow,
pin 2
/’
’
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
-
OBF
OF0
OCO
-
ODF
OF1
OF8
-
OFF
1
lntermpt
controller 2,8259A
Clear math coprocessor busy
1
DMA
controtter
2,8237A-5
Reset math coprocessor
Math coprocessor
1FO
-
lF8
200
-
207
1
Harddisk
I Game
I/O
278
-
27F
280
-
2DF
2El
2E2
and
2E3
2F8
-
2FF
300-31F
360
-
363
378
-
368-368
37F
380
-
38F
390
-
393
Parallel printer port 2
Alternate enhanced graphics
adapter
GPIB
(adapter 0)
Parallel printer port 1
Data acquisition (adapter 0)
Serial port 2
Prototype
card
1
PC network (low address)
SDLC, bisynchronous
1 PC network (high address)
2
Cluster
82El
A2El
GPIB (adapter 4)
1
GPIB
(adapter 5)
C2El
E2El
*
GPIB (adapter 6)
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