FDD CDX2

Port Based Floppy Disk Drive controller for MSX computer

Recreated Microsol Tecnologia CDX-2 FDD interface.

Based on WD2793 or TMS2793 floppy disk controller
Support for 3.5' and 5.25' floppy drives
Modified to work with computers that support the BUSDIR signal
Jumper to switch between two different ROMs
Fits MSX cartridge
Tested on MSX1 and MSX2

ROMs tested with this interface:

CDX-2 (Microsol Tecnologia)
Angeisa (Angeisa Eletronica LTDA)
FAST!DiskROM

ROMs that should work with this interface:

DDX 1.0 (Digital Design)
DMX 1.2 (Conector Informatica LTDA.)
LIFTROM (Liftrom Informatica)
MANUT (AMT Mamute)
TPX 1.02 (TPX - Perifericos)

ROM vs free BASIC memory

ROM	Free BASIC Memory
Angeisa (Angeisa Eletronica LTDA)	23430
CDX-2 (Microsol Tecnologia)	23430
DDX 1.0 (Digital Design)	20304
DMX 1.2 (Conector Informatica LTDA.)	20304
LIFTROM (Liftrom Informatica)	20304
MANUT (AMT Mamute)	23430
TPX 1.02 (TPX - Perifericos)	23430
FAST!DiskROM	25471

Test Points

TP1 - PIN 16 (DIRC)
TP2 - PIN 29 (TG43)
TP3 - PIN 31 (WD)

J3 must be closed to enable test mode. For normal use J3 must be open.

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