Epson ActionPC 7300 User Manual - Page 174
Hardware Interrupts, System Memory Map
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Hardware Interrupts IRQ no. 1 IRQ0 1 lRQ1 1 IRQ2 1 IRQ3 1 IRQ4 1 IRQ5 I IRQ6 1 IRQ7 1 IRQ8 1 IRQ9 1 IRQ10 1 IRQ11 1 IRQ12 IRQ13 IRQ14 IRQ15 Function I Timer output o I Keyboard I Cascade to IRQ9 I Serial port 2 1 Serial port 1 1 Available 1 Diskette drive controller 1 Parallel port 1 1 Real-time clock 1 Available 1Reserved 1 Reserved 1 PS/2 mouse Math coprocessor Primary IDE controller Secondary IDE controller System Memory Map 100000h-FDFFFFh 0C8000h-0DFFFFh 0A0000h-0BFFFFh Function 128KB duplication of ROM BIOS stored at 0E0000h-0FFFFFh System extended memory (128MB maximum) 128KB ROM BIOS Adapter ROM BIOS c tVideo ROM BIOS t 128KB video memory 640KB base memory A-12 Specifications
![](/manual_guide/products/epson-actionpc-7300-user-manual-ac43ae1/174.png)
Hardware
Interrupts
IRQ no.
Function
1
IRQ0
I
Timer output o
1
lRQ1
I
Keyboard
1
IRQ2
I
Cascade to IRQ9
1
IRQ3
I
Serial port 2
1
IRQ4
1
Serial port 1
1
IRQ5
1
Available
I
IRQ6
1
Diskette drive controller
1
IRQ7
1
Parallel port 1
1
IRQ8
1
Real-time clock
1
IRQ9
1
Available
1
IRQ10
1
Reserved
1
IRQ11
1
Reserved
1
IRQ12
1
PS/2 mouse
IRQ13
IRQ14
IRQ15
Math coprocessor
Primary IDE controller
Secondary IDE controller
System Memory Map
100000h-FDFFFFh
0C8000h-0DFFFFh
0A0000h-0BFFFFh
c
t
t
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
A-12
Specifications