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5.1.2 Cache Structure........................................................................................97
5.1.3 Register Configuration..............................................................................99
5.2 Register Description.............................................................................................99
5.2.1 Cache Control Register (CCR) ...................................................................99
5.3 Cache Operation..................................................................................................100
5.3.1 Searching the Cache..................................................................................100
5.3.2 Read Access............................................................................................102
5.3.3 Write Access...........................................................................................102
5.3.4 Write-Back Buffer.....................................................................................102
5.3.5 Coherency of Cache and External Memory....................................................103
5.3.6 RAM Mode.............................................................................................103
5.4 Memory-Mapped Cache.........................................................................................103
5.4.1 Address Array..........................................................................................103
5.4.2 Data Array..............................................................................................104
5.5 Usage Examples ..................................................................................................106
5.5.1 Invalidating Specific Entries.......................................................................106
5.5.2 Reading the Data of a Specific Entry............................................................106
Section 6 Interrupt Controller (INTC)................................................107
6.1 Overview............................................................................................................107
6.1.1 Features..................................................................................................107
6.1.2 Block Diagram.........................................................................................108
6.1.3 Pin Configuration ....................................................................................109
6.1.4 Register Configuration..............................................................................109
6.2 Interrupt Sources..................................................................................................109
6.2.1 NMI Interrupts.........................................................................................110
6.2.2 IRL Interrupts..........................................................................................110
6.2.3 On-Chip Supporting Module Interrupts........................................................112
6.2.4 Interrupt Exception Handling and Priority.....................................................112
6.3 INTC Registers...................................................................................................115
6.3.1 Interrupt Priority Registers A and B (IPRA–IPRB).........................................115
6.3.2 Interrupt Control Register (ICR) .................................................................116
6.4 INTC Operation...................................................................................................117
6.4.1 Interrupt Sequence....................................................................................117
6.4.2 Multiple Interrupts...................................................................................119
6.5 Interrupt Response Time .......................................................................................120
Section 7 User Break Controller (UBC).............................................123
7.1 Overview............................................................................................................123
7.1.1 Features..................................................................................................123
7.1.2 Block Diagram.........................................................................................123
7.1.3 Register Configuration..............................................................................125
7.1.4 Break Conditions and Register Settings........................................................125