Apple Lisa - Page 2

Conf i,den tial
Lisa Hardware Reference Manual
7-Jul-81
TABLE OF CONTENTS
OVERVIEW
4 The Processor
5 Video Display
5 Memory
6 The System Bus
THE CPU BOARD
7 The 68000
7 Interrupts
9 Memory
9 Memory Configurations
10 The Memory Management Unit
12 The Segment Origin
12 Context Selection
13 The Segment Limit
14 The Process Stack
15 Loading·the MMU Registers
16 Memory Errors
17 The Status Register
18 The Memory Error Address Latch
18 Memory Diagnostic Mode
20 Video Circuit
21 Contrast Control
23 System Bus Timing
24 Memory Bus Timing
25 Summary of MMU Locations
THE 10 BOARD
26 The Input/Output Board
26 The Keyboard Interface
28 COPS Command Timing
31 Reset Codes
32
The Keyboard
32 Keycodes
34
The Mouse
34 Mouse Commands
35 Mouse Data
36 The Clock/Calendar Circuit
37 Setting the Clock
38 The CVSD and the Speaker
39 The Serial Interface
40 Baud Rate Generation
42 The Floppy Disk Controller
42 Disk Controller Commands
44 Disk Data Storage
44 Interrupts
45 Non-volatile Memory