csan@its63b.ed.ac.uk (Andie) (11/17/86)
Someone asked for a map of the gubbins .... I hope this helps.
_____________________________________
$FF FC00 | |
| I/O AREA |
$FF FA00 L___________________________________|
$FF 8800 |. . . . . . . . . . . . . . . . . .|
8600 |. . . . . . . . . . . . . . . . . .|
8400 |. . . .I./.O. .A.R.E.A. . . . . . .|
8200 |. . . . . . . . . . . . . . . . . .|
$FF 8000 |___________________________________|
_____________________________________
$FE FFFF | |
| 192 K |
| |
| SYSTEM ROM |
$FC 0000 |___________________________________|
| |
| 128 K |
| |
| EXPANSION CARTRIDGE ROM |
$FA 0000 |___________________________________|
_____________________________________
$07 FFFF | |
| 512 K |
| |
| RAM |
$00 0000 |___________________________________|
I/O Assignments
---------------
_____________________________________
| |
| 2x ACIA 6850 |
$FFFC00 |-----------------------------------|
| |
| MFP 68091 |
$FFFA00 |___________________________________|
_____________________________________
| |
| SOUND AY-2-8910 |
$FF8800 |___________________________________|
| |
| DMA/ WD 1770 |
$FF8600 |___________________________________|
| |
| ? ? ? ? |
$FF8400 |___________________________________|
| |
| VIDEO CONTROLLER |
$FF8200 |___________________________________|
| |
| DATA CONFIGURATION |
$FF8000 |___________________________________|
I can , if wanted , give a more detailed report if this is what is wanted .
Andrew Ness . Department of Computer Science
EDINBURGH University.
ARPA: csan%ed.itspna@ucl-cs.arpa
UUCP: ...!seismo!mcvax!ukc!itspna!csan
JANET: csan@uk.ac.ed.itspna