Data Bus 16
MC68HC000 / MPU / Sheet 2
Address Bus 23
Expansion / Bus / Sheet 2
Control Bus
Data 8
Data 16
System / ROM / Sheet 2
Address 2
HD6350 / MIDI / Controller / Sheet 3
MIDI Port
Address 18
Control
Data 8
Data 4
Address 2
HD6350 / Keyboard / Controller / Sheet 3
COP888 / Keyboard / Processor / Sheet 8
Keyboard/ / Joypad
Real-Time / Clock / Sheet 11
Address 4
Control
Data 8
Floppy Drive and Side Selects / IDE Reset / Floppy Density Select
YM3439 / PSG / Sheet 3
Control
Parallel Port
Data 8
Serial Data / and Control
MAX241 / Serial / Controller / Sheet 3
Address 5
68901 / MFP / Sheet 3
Serial Port
Control
Data 15
External Modem
Address 23
COMBO / Controller / Sheet 4
Memory Address 10
Control
Control
1 or 4 / Megabyte / RAM / Sheet 5
Data 15
Multiplex / Sheet 4
Memory Data 15
Shadow / Video / Controller / Sheet 4
Video RAM / Sheet 4
Data 16
LCD
Address 1
ACSI/DMA / Controller / Sheet 7
ACSI/Floppy / Port
Control
Data 16
Address 3
IDE / Port / Sheet 7
Control
