Epson EL 486UC Panduan Informasi Produk - Halaman 7

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Hardware interrupts (continued)

IRQ10

Available

IRQ11

Available

IRQ12

Available

IRQ13

Math coprocessor

IRQ14

HOC controller

IRQ15

Available

System Memory Map

OOOFFFFFFh

System BIOS ROM: 64KB

Duplicated from 0F0000h

000FF0000h

Reserved for system board: 64KB

Duplicated from OE0000h

000FE0000h

00100000h

System BIOS ROM: 64KB

Default Shadow RAM duplicated at FF0000h

000F0000h

Unused or I/O expansion ROM: 160KB

Resewed for ROM on I/O adapters

VGA BIOS ROM: 32KB

Default Shadow RAM

(color): 32KB

000B8000h

Unused or VGA text

(monochrome): 32KB

000B0000h

Video memory: 64KB

Reserved for graphics display buffer

Conventional system memory: 640KB

VGA text

System l/O Address Map

Information Reference List

Engineering Change Notices

None.

Technical Information Bulletins

None.

product Support Bulletins

None.

8/15/93

Epson EL 486UC

Epson EL 486UC-7