Model number
Single drive
Conner CFS1275A
C/D jumpered
Conner CFS850A
C/D jumpered
Conner CFS635A
C/D jumpered
Conner CFS541A
C/D jumpered
NEC D3747
SW1 on,
SW2–SW4 off
NEC D3745
SW1 on,
SW2–SW4 off
Seagate ST31640A
No jumpers
Seagate ST51270A
No jumpers
Seagate ST3630A
No jumpers
DMA Assignments
Level
Assigned device
DMA0
Reserved
DMA1
Available
DMA2
Diskette drive controller
DMA3
Available
DMA4
DMA5
Spare
DMA6
Spare
DMA7
Spare
Hardware Interrupts
IRQ no.
Function
IRQ0
Internal timer
IRQ1
Keyboard
IRQ2
Cascade to IRQ9
IRQ3
Serial port 2
IRQ4
Serial port 1
IRQ5
LPT2
IRQ6
Diskette drive controller
IRQ7
Parallel port 1
IRQ8
Real-time clock
IRQ9
Cascaded from IRQ2
IRQ10
Available
IRQ11
Available
IRQ12
PS/2 mouse
IRQ13
Math coprocessor
IRQ14
Primary IDE controller
IRQ15
Secondary IDE controller
Master drive
Slave drive
C/D jumpered
No jumpers
C/D jumpered
No jumpers
C/D jumpered
No jumpers
C/D jumpered
No jumpers
SW1 on,
SW1–SW4 off
SW2–SW4 off
SW1 on,
SW1–SW4 off
SW2–SW4 off
3-4 jumpered
1-2 jumpered
3-4 jumpered
1-2 jumpered
No jumpers
7-8 jumpered
EPSON ActionPC and ActionTower 8600
System I/O Address Map
Hex address
Assigned device
000 - 01F
DMA controller 1, 8237
020 - 03F
Interrupt controller 1, 8259
022 - 024
Reserved
040 - 05F
Timer, 8254
060 - 06F
Keyboard controller, 8242PE
070 - 07F
Real-time clock NMI (non-maskable interrupt)
080 - 09F
DMA page register, 74LS612
0A0 - 0BF
Interrupt controller 2, 8259
0C0 - 0DF
DMA controller 2, 8237
0F0
Clear math coprocessor
0F1
Reset math coprocessor
0F8 - 0FF
Math coprocessor
1F0 - 1F8
Primary hard disk interface
1E0 - 1E7
Secondary hard disk interface
200 - 207
Game I/O
278 - 27F
Parallel printer port 2
2B0 - 2DF
Alternate enhanced graphics adapter
2E1
GPIB (adapter 0)
2E2, 2E3
Data acquisition (adapter 0)
2F8 - 2FF
Serial port 2
300 - 31F
Prototype card
360 - 363
Available
368 - 36B
Available
378 - 37A
Parallel printer port 1
380 - 38F
Available
390 - 393
Available
3A0 - 3AF
Available
3B0 - 3BF
Available
3C0 - 3CF
VGA adapter
3D0 - 3DF
VGA adapter
3F0 - 3F5
Diskette drive controller
3F8 - 3FF
Serial port 1
6E2, 6E3
Available
790 - 793
Available
AE2, AE3
Available
B90, B93
Available
EE2, EE3
Available
1390 - 1393
Available
22E1
Available
2390 - 2393
Available
42E1
Available
63E1
Available
82E1
Available
A2E1
Available
C2E1
Available
E2E1
Available
2/96
ActionPC and ActionTower 8600 - 7
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