COMMODORE PLUS/4 WORLD
  Home  Search  Games  Tapes  Covers  Cheats  Maps  Software  New Stuff 
 Hall Of Fame  HVTC  Game Endings  Features  Solutions  Remakes  Publications  Magazines  Effects  Top List 
 Members  Groups  Plus/4 Encyclopedia  Hardware  Tools  Options  Forum 
Login
Plus/4 EncyclopediaFirstBackNextLast

I/O Area Map
Category


Topic
Copied from Solder's home page:


$fd00-$feff plus/4-i/o-area
$fd00-$fd0f ACIA-chip (6551/8551)
$fd00-$fd03 effective range for ACIA
$fd03-$fd0f mirrors of $fd00-$fd03
$fd10-$fd1f Userport 6529B-chip (original)
$fd10 effective adress for 6529B (original)
$fd10-$fd1f mirrors of $fd10 (original)
$fd10-$fd1f Userport-area (plus/4 with expansion)
$fd10 6529B-chip from userport
$fd11-$fd12 Centronics-printerport
$fd13-$fd14 Low-/high-switching for OS96
$fd15 Register for CSORY-RAM-expansion
$fd16 Register for Hannes-RAM-expansion
$fd17 Register for EPROM-/sRAM-expansion
$fd18-$fd1f free (best for internal expansion)
$fd20-$fd2f used by different hardware, decoded by PLA (pin 18)
$fd30-$fd3f 6529B for keyboard
$fd30 effective adress for this 6529B
$fd31-$fd3f mirrors of $fd30
$fd40-$fd5f SID-card, area for SID-chip
$fd40-$fd5d SID-chip
$fd5e DAC on digiblaster add-on
$fd5f ADC on digiblaster add-on
$fd60-$fd7f Area for expansion-userport
$fd60-$fd63 ACIA on card 1
$fd64-$fd67 ACIA on card 2
$fd68-$fd6b ACIA on card 3
$fd6c-$fd6f ACIA on card 4
$fd70-$fd73 6529B-emulation on card 1
$fd70 effective adress for 6529B-emulation
$fd71-$fd73 mirrors of $fd70
$fd74-$fd77 6529B-emulation on card 2
$fd74 effective adress for 6529B-emulation
$fd75-$fd77 mirrors of $fd74
$fd78-$fd7b 6529B-emulation on card 3
$fd78 effective adress for 6529B-emulation
$fd79-$fd7b mirrors of $fd78
$fd7c-$fd7f 6529B-emulation on card 4
$fd7c effective adress for 6529B-emulation
$fd7d-$fd7f mirrors of $fd7c
$fd80-$fd8f Joyport on SID-card
$fd80 effective adress for joyport
$fd81-$fd8f mirrors of $fd80
$fd90-$fdcf free
$fdd0-$fddf Area for ROM-banking
$fde0-$fde1 MIDI-interface
$fde2-$fdef free
$fdf0-$fdfd free
$fdfe Register on EPROM-card
$fdff Register on sRAM-card
$fe00-$fe7f free (best usage for a RAM-drive...)
$fe80-$fe9f SID-card, mirror from $fd40... for hungarian-compatibility
$fe80-$fe9d SID-chip
$fe9e DAC on digiblaster add-on
$fe9f ADC on digiblaster add-on
$fea0-$febf free (?)
$fec0-$fecf Floppy 1551, device 9
$fed0-$feef free (?)
$fef0-$feff Floppy 1551, device 8


Keywords
io map 



Copyright © Plus/4 World Team, 2001-2017