EPSON ActionNote 890 Series
| Hardware | Interrupts | ||
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| Function | |
I Interrupt |
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| IRQ0 |
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| Timer |
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| IRQ1 |
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| Keyboard |
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| IRQ2 |
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| Cascade |
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| IRQ3 |
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| COM2 (2F8H) (COM4 02E8) |
| IRQ4 |
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| COM1 (3F8H) (COM3 03E8) |
| IRQ5 |
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| Optional sound card |
| IRQ6 |
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| Diskette Controller |
| IRQ7 |
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| LPT1 |
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| IRQ8 |
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| Clock/Calendar |
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| IRQ9 |
| I | Video |
| IRQ10 |
|
| Available |
| IRQ11 |
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| Available |
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| IRQ12 |
| I | Touchpad |
| IRQ13 |
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| Reserved for Coprocessor |
| IRQ14 |
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| Hard Disk Drive Controller |
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| IRQ15 |
| I | Available |
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I
I
I
System Memory Map
000000H
640KB base memory
0A0000H
128KB reserved for graphics display area
0C0000H
Reserved
0E0000H
40KB for VGA BIOS
0EA000H
Power Management Utility
0F0000H
64KB for system BIOS
100000H
Extended memory
FFE000H
Duplicated code assignment at address 0E0000
FFFFFFH
DMA Assignments
Channel | Device |
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| ||
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DMA0 | Available |
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DMA1 | Optional Sound Card |
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DMA2 | Diskette Controller | I |
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DMA3 | ECP |
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DMA4 | Cascade for CTRL 1 |
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DMA5 | Available |
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DMA6 | Available |
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DMA7 | Available |
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8 / 2 5/ 9 5 |