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EPSON ActionPC 7000, ActionTower 7000, Endeavor 486i
Hard Disk Drive Information
DMA Assignments
The following table lists parameters for hard disk drives
qualified for use in the computer.
Hard disk the parameters
Level
Assigned device
DMA0
Reserved
DMA1
Available
DMA2
Diskette drive controller
DMA3
Available
DMA4
Cascade from DMA1 to DMA2
DMA5
Spare
DMA6
DMA7
Spare
Spare
Hardware Interrupts
IRQ no.
IRQO
IRQI
IRQ2
IRQ3
IRQI
IRQ2
IRQ3
IRQ4IRQ4
IRQ5IRQ5
IRQ6IRQ6
IRQ7
IRQ7
IRQ8IRQ8
IRQ9IRQ9
IRQIOIRQIO
IRQI 1IRQI 1
IRQ12IRQ12
Function
Timer
output 0
Keyboard
Cascade to
IRQ9
Serial
oort
2
Keyboard
Cascade to
IRQ9
Serial
port 2
Serial
port 1
Serial
port 1
AvaIlableAvaIlable
Diskette
dwe
controller
Diskette
dwe
controller
Parallel oort 1
Parallel port 1
Real-time
clock
Real-time
clock
AvaIlableAvaIlable
AvaIlableAvaIlable
1
AvaIlableAvaIlable
PS12
mouse
PS12
mouse
IRQ13
IRQ14
IRQ15
Math coprocessor
Primary
IDE controller
Secondary
IDE controller
System Memory Map
Address range
FEOOOOh-FFFFFFh
IOOOOOh-FDFFFFh
OEOOOOh-OFFFFFh
OC8000h.ODFFFFh
OCOOOOh-OC7FFFh
OAOOOOh-OBFFFFh
OOOOOOh-09FFFFh
Function
128KB
dupllcatlon
of ROM BIOS stored at
OEOOOOh-OFFFFFh
System extended memory (128MB
maxlmum)
128KB ROM BIOS
Adapter ROM BIOS
Video
ROM BIOS
128KB video memory
640KB base
memorv
IDE hard disk drive jumper settings
Model number
Single drive
Conner CFS1275A
C/D jumpered
Conner CFS850A
C/D jumpered
Conner CFS540A
C/D jumpered
Conner CFS425A
C/D jumpered
Conner CFS420A
CID jumpered
Conner CFS270A
CID jumpered
Western Digital AC2540
No
jumpers
Western Digital AC2420
No Jumpers
Western Digital AC2340
No jumpers
Western Digital AC2250
No jumpers
5/19/95 ActionPC 7000, ActionTower 7000, Endeavor 486i - 7