Korg DSS-1 - CPU Memory Maps

4. CPU1 MEMORY MAP
OOOOH
8000H
AOOOH
COOOH
C400H
C800H
DOOOH
D004H
D008H
DOOCH
DO1OH
DO14H
D018H
DO1CH
EP-ROM 27256 (BANK 0)
(KLM-780 IC19)
EP-ROM 2764
(KLM-780 IC12)
RAM 4364
(KLM-780 IC11)
8155-2
(KLM-780 IC17)
8255-2
(KLM-780 IC14)
BANK SWITCH PORT HC74
(KLM-780 IC30)
82C53 (1)
(KLM-782 IC1)
82C53 (2)
(KLM-782 IC2)
82C53 (3)
(KLM-782 IC3)
82C53 (4)
(KLM-782 IC6)
82C53 (5)
(KLM-782 IC7)
82C53 (6)
(KLM-782 IC8)
DMA RAM LOW BYTE WRITE PORT HC374
(KLM-782 IC23)
DMA RAM HIGH BYTE WRITE PORT HC374
(KLM-782 IC23)
EP-ROM 27256 (BANK 1)
(KLM-780 IC18)
BANK 0 AND BANK 1 OF 27256 IS SWITCHED
EACH OTHER BY HC74 ADDRESSED AT C800H.
D020H
D040H
D060H
D080H
DOAOH
DOCOH
DOEOH
D400H
D800H
DCOOH
EOOOH
FFFFH
ICPU1 PROGRAM ROM MAP
33
Scan by Manual Manor
http://www.markglinsky.com/ManualManor.html