
Rev. 4.00, 03/04, page xxi of xlvi
Contents
Section 1 Overview...........................................................................................
1.1
Feature...............................................................................................................................
1.2
Block Diagram..................................................................................................................
1.3
Pin Assignment.................................................................................................................
1.4
Pin Function......................................................................................................................
1
1
3
4
6
Section 2 CPU................................................................................................... 13
2.1
Register Description..........................................................................................................
2.1.1
Privileged Mode and Banks.................................................................................
2.1.2
General Registers.................................................................................................
2.1.3
System Registers..................................................................................................
2.1.4
Control Registers .................................................................................................
2.2
Data Formats.....................................................................................................................
2.2.1
Data Format in Registers......................................................................................
2.2.2
Data Format in Memory.......................................................................................
2.3
Instruction Features...........................................................................................................
2.3.1
Execution Environment........................................................................................
2.3.2
Addressing Modes ...............................................................................................
2.3.3
Instruction Formats..............................................................................................
2.4
Instruction Set...................................................................................................................
2.4.1
Instruction Set Classified by Function.................................................................
2.4.2
Instruction Code Map ..........................................................................................
2.5
Processor States and Processor Modes..............................................................................
2.5.1
Processor States ...................................................................................................
2.5.2
Processor Modes..................................................................................................
13
13
15
16
17
20
20
20
21
21
23
27
30
30
46
49
49
50
Section 3 Memory Management Unit (MMU)................................................. 51
3.1
Role of MMU....................................................................................................................
3.1.1
This LSI's MMU..................................................................................................
3.2
Register Description..........................................................................................................
3.2.1
Page Table Entry Register High (PTEH).............................................................
3.2.2
Page Table Entry Register Low (PTEL)..............................................................
3.2.3
The Translation Table Base Register (TTB)........................................................
3.2.4
The TLB Exception Address Register (TEA)......................................................
3.2.5
MMU Control Register (MMUCR).....................................................................
3.3
TLB Functions..................................................................................................................
3.3.1
Configuration of the TLB ....................................................................................
3.3.2
TLB Indexing.......................................................................................................
3.3.3
TLB Address Comparison ...................................................................................
51
53
56
56
57
57
57
58
59
59
61
62