System Memory Map; Dma Assignments; Hardware Interrupts - Epson EL 4S/33 Product Information Manual

Epson EL 4S/33
Game Port Connector (CN1)
pin 6
pin 15
Game Port Connector Pin Assignments

DMA Assignments

Hardware Interrupts

IRQ14
IRQ15 1 Avaiiabie
Epson EL 4S/33-4
pin 1
pin 9

System Memory Map

000FFFFFFh
000FF0000h
Reserved for system board: 64KB
000FE0000h
00100000h
Default Shadow RAM duplicated at FF0000h
000F0000h
Unused or I/O expansion ROM: 160KB
Resewed for ROM on I/O adapters
000C8000h
000C0000h
000B8000h
000B0000h
Resewed for graphics display buffer
000A0000h
Conventional system memory: 640KB
9/93
System BIOS ROM: 64KB
Duplicated from 0F0000h
Duplicated from 0E0000h
Extended memory
System BIOS ROM: 64KB
VGA BIOS ROM: 32KB
Default Shadow RAM
VGA text
(color): 32KB
Unused or VGA text
(monochrome): 32KB
video memory: 64KB
16MB
[Maximum
system
Memory)
1MB
640KB