SH7708 Datasheet, PDF (6/625 Pages) Renesas Technology Corp – SuperH™ RISC engine

3.4 MMU Functions .................................................................................................66
3.4.1 MMU Hardware Management.....................................................................66
3.4.2 MMU Software Management .....................................................................66
3.4.3 MMU Instruction (LDLTB) .......................................................................67
3.4.4 Avoiding Synonym Problems ....................................................................68
3.5 MMU Exceptions................................................................................................70
3.5.1 TLB Miss Exception ................................................................................70
3.5.2 TLB Protection Violation Exception............................................................71
3.5.3 TLB Invalid Exception..............................................................................72
3.5.4 Initial Page Write Exception ......................................................................73
3.5.5 Processing Flow in Event of MMU Exception (Same Processing Flow for Address
Error) .........................................................................................................75
3.6 Memory-Mapped TLB ..........................................................................................77
3.6.1 Address Array..........................................................................................77
3.6.2 Data Array..............................................................................................78
3.6.3 Usage Examples ......................................................................................80
3.7 Usage Note.........................................................................................................80
Section 4 Exception Handling.........................................................81
4.1 Overview ...........................................................................................................81
4.1.1 Features .................................................................................................81
4.1.2 Register Configuration..............................................................................81
4.2 Exception Handling Function.................................................................................81
4.2.1 Exception Handling Flow ..........................................................................81
4.2.2 Exception Handling Vector Addresses...........................................................82
4.2.3 Acceptance of Exceptions ..........................................................................84
4.2.4 Exception Codes ......................................................................................86
4.2.5 Exception Request Masks ..........................................................................87
4.2.6 Returning from Exception Handling ............................................................88
4.3 Register Description.............................................................................................88
4.4 Exception Handler Operation..................................................................................89
4.4.1 Reset .....................................................................................................89
4.4.2 Interrupts................................................................................................89
4.4.3 General Exceptions...................................................................................89
4.5 Individual Exception Operations .............................................................................90
4.5.1 Resets....................................................................................................90
4.5.2 General Exceptions...................................................................................91
4.5.3 Interrupts................................................................................................94
4.6 Cautions............................................................................................................95
Section 5 Cache .........................................................................97
5.1 Overview ...........................................................................................................97
5.1.1 Features .................................................................................................97
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