Specifications
iv
Chapter 2
Architecture
19
Block Diagram 20
MC68030 Microprocessor 20
Ardbeg Custom IC 20
Ariel Custom IC 20
Combo Custom IC 22
Cuda ADB Controller 22
Sound Circuits 22
Sound Modes 22
Sample Rates 23
Address Map 23
RAM Addresses 23
Video RAM 25
Video Display Timing 25
Chapter 3
Expansion
29
Expansion Slot 30
Pin Assignments 30
Descriptions of the Signals 32
The PDS Expansion Card 34
Expansion Card Connectors 35
Address Space for the Expansion Card 35
Power for the Expansion Card 36
Chapter 4
Software
37
ROM Software 38
Unchanged Functions 38
MMU Initialization 38
Machine Identiļ¬cation 38
RAM Sizing and Addressing 38
One-Second Interrupt 39
Pushbutton Interrupts 39
Power Saver Software 39
Video Software 39
System Software 40
System Enabler 40
Booting From a CD-ROM 40
New Control Panels 40
Sound Control Panel 41
Screen Control Panel 42










