SH7265 Datasheet, PDF (13/2024 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

7.12.1 Timing to Clear an Interrupt Source ................................................................. 222
Section 8 User Break Controller (UBC) ............................................................223
8.1 Features............................................................................................................................. 224
8.2 Input/Output Pin ............................................................................................................... 226
8.3 Register Descriptions........................................................................................................ 226
8.3.1 Break Address Register (BAR)......................................................................... 227
8.3.2 Break Address Mask Register (BAMR) ........................................................... 228
8.3.3 Break Data Register (BDR) .............................................................................. 229
8.3.4 Break Data Mask Register (BDMR)................................................................. 230
8.3.5 Break Bus Cycle Register (BBR)...................................................................... 231
8.3.6 Break Control Register (BRCR) ....................................................................... 233
8.4 Operation .......................................................................................................................... 236
8.4.1 Flow of the User Break Operation .................................................................... 236
8.4.2 Break on Instruction Fetch Cycle...................................................................... 237
8.4.3 Break on Data Access Cycle............................................................................. 238
8.4.4 Value of Saved Program Counter ..................................................................... 239
8.4.5 Usage Examples................................................................................................ 240
8.5 Usage Notes ...................................................................................................................... 243
Section 9 Cache .................................................................................................245
9.1 Features............................................................................................................................. 245
9.1.1 Cache Structure................................................................................................. 245
9.2 Register Descriptions........................................................................................................ 248
9.2.1 Cache Control Register 1 (CCR1) .................................................................... 248
9.2.2 Cache Control Register 2 (CCR2) .................................................................... 250
9.3 Operation .......................................................................................................................... 254
9.3.1 Searching Cache ............................................................................................... 254
9.3.2 Read Access...................................................................................................... 256
9.3.3 Prefetch Operation (Only for Operand Cache) ................................................. 256
9.3.4 Write Operation (Only for Operand Cache)...................................................... 257
9.3.5 Write-Back Buffer (Only for Operand Cache).................................................. 258
9.3.6 Coherency of Cache and External Memory ...................................................... 260
9.4 Memory-Allocated Cache................................................................................................. 260
9.4.1 Address Array ................................................................................................... 260
9.4.2 Data Array ........................................................................................................ 261
9.4.3 Usage Examples................................................................................................ 263
9.4.4 Notes ................................................................................................................. 263
Rev. 1.00 Mar. 14, 2008 Page xiii of xxxvi