Hardware Interrupts; System Memory Map - Epson ActionTower 7500 User Manual

Hardware Interrupts

IRQ no.
I
IRQ0
I
lRQ1
I R Q 2
I R Q 3
I R Q 4
I R Q 5
I R Q 6
I R Q 7
I R Q 8
IRQ9
I R Q 1 0
IRQ11
I R Q 1 2
IRQ13
IRQ14
IRQ15

System Memory Map

Address range
FE0000h-FFFFFFh
100000h-FDFFFFh
0E0000h-0FFFFFh
0C8000h-0DFFFFh
0C0000h-0C7FFFh
0A0000h-0BFFFFh
000000h-09FFFFh
A-12
Specifications
Function
Timer output 0
Keyboard
Cascade to IRQ9
Serial port 2
Serial port 1
Available
Diskette drive controller
Parallel port 1
Real-time clock
Available
Reserved
Reserved
PS/2 mouse
Math coprocessor
Primary IDE controller
S e c o n d a r y IDE controller
Function
128KB duplication of ROM BIOS stored at 0E0000h-0FFFFFh
System extended memory (128MB maximum)
128KB ROM BIOS
Adapter ROM BIOS
Video ROM BIOS
128KB video memory
640KB base memory