Epson NX - System Description

EPSON NX
Hardware Interrupts
System l/O Address Map
Hex address’ Aeelgned device
000-OlF DMA controller 1,8237A-5
020 - 021
Interrupt controller 1,8259A, master
022 - 024 Epson reserved function
040-043 1 Timer, 8254-2
080-081,084 I8042 (Keyboard and mouse)
070 - 071 (CMOS)
1 Real-time clock NMI (non-ma&able interrupt mask)
080-08F
OAO-OAl
OCO - ODF
OF0
OF1
OF8 - OFF
1 lFO- lF8
200-207
278 - 27A
j DMA page register, 74LS812
1 Interrupt controller 2,8259A
DMA controller 2,8237A-5
Clear math coprocessor busy
j Reset math coprocessor
1 Math coprocessor
1 Hard disk drive
IGameWO
1 Parallel printer port 3
I
1280 - 2DF 1 Alternate enhanced graphics adapter
2El
2E2 and 2E3
[ GPIB (adapter 0)
I Data aafukition (adapter 0)
I2F8 - 2FF ISelialport2
I
300-31F
LAN adapter
348-357
DCA 3278
380-383 PC network (low address)
384-387
Resewed
p-368
38C-38F
378 - 37A
1 PC network (high address)
1 Resewed
I Parallel printer port 2
380-38F
390-393
SDLC, bisync 2
Cluster
3A0 - 3AF
3BO-3BA
I Bisynchronous 1
I Monochrome display and printer adapter
3BC-3BE
3C0 - 3CF
3D0 - 3DF
3F0 - 3F7
3F8 - 3FF
8E2 and 8E3
790 - 793
AE2 and AE3
B90-893
EE2 - EE3
1390 - 1393
Parallel printer port 1
Enhanced graphics adapter
Color/graphics monitor adapter
Floppy disk drfve controller
Serialport
Data acquisttiin (adapter 1)
Cluster (adapter 1)
Data acquisttiin (adapter 2)
Cluster (adapter 2)
J Data acquisition (adapter 3)
1 Cluster (adapter 3)
Hex address*
22El
1 Asslgned device
j GPIB (adapter 1)
FO80 - F085 Epson reserved function
F089 - FO8D
Epson resewed function
* Recommended addresses for installing devices
Jumper Settings
See the illustration on page 3 for the location of the jumpers
on the main system board.
CPU Speed Jumper Settings*
CPU speed Jl
J2 53
J4
DW88
A
A
B A
l Factory settings
CPU Type Jumper Settings’
CPU type J5
J6
57
J6
ODP488DX88 A A
B
B
l This table shows the factory settings for jumpers J5-J8. You need to change
these settings only if you install a future CverDrfve processor.
Other ]umper Settings
JlO
I
A‘
B
Jll
I A*
Function
Enables the built-in mouse connector
Dtsables the built-in mouse connector
Enables the built-in VGA display adapter
Disables the built-in VGA dlsptay adapter
A color monitor is Installed
A monochrome monitor is installed
Enables a mouse or other polnting device
connected to an opt&n card
Disables a mouse or other pointing device
connected to an option card
Disables the password
Enables the password
Reserved
l Factory setting
“To use a mouse connected to a port on an option card, set J9 to B and J12 to
A. lf you connect another type of pointing device (such as a joy stick) to the
option card port, set both jumpers to A.
EPSON NX-6
6/30/93