SH7708 Datasheet, PDF (8/625 Pages) Renesas Technology Corp – SuperH™ RISC engine

7.2 UBC Register Functions .......................................................................................126
7.2.1 Break Address Register A (BARA)...............................................................126
7.2.2 Break Address Register B (BARB) ...............................................................126
7.2.3 Break ASID Register A (BASRA)...............................................................127
7.2.4 Break ASID Register B (BASRB)................................................................127
7.2.5 Break Address Mask Register A (BAMRA) ...................................................127
7.2.6 Break Address Mask Register B (BAMRB)....................................................128
7.2.7 Break Bus Cycle Register A (BBRA) ...........................................................128
7.2.8 Break Bus Cycle Register B (BBRB)............................................................129
7.2.9 Break Data Register B (BDRB) ...................................................................130
7.2.10 Break Data Mask Register B (BDMRB) ......................................................131
7.2.11 Break Control Register (BRCR) ................................................................132
7.3 UBC Operation ...................................................................................................134
7.3.1 User Break Operation Flow........................................................................134
7.3.2 Instruction Fetch Cycle Break.....................................................................135
7.3.3 Data Access Cycle Break ...........................................................................136
7.3.4 Saved Program Counter (PC) Value.............................................................137
7.3.5 Examples of Use......................................................................................138
7.3.6 Cautions ................................................................................................140
Section 8 Power-Down Modes........................................................141
8.1 Overview ...........................................................................................................141
8.1.1 Power-Down Modes .................................................................................141
8.1.2 Register Configuration..............................................................................142
8.1.3 Pin Configuration ....................................................................................143
8.2 Register Description.............................................................................................143
8.2.1 Standby Control Register (STBCR).............................................................143
8.3 Sleep Mode ........................................................................................................145
8.3.1 Transition to Sleep Mode ..........................................................................145
8.3.2 Canceling Sleep Mode ..............................................................................145
8.4 Standby Mode.....................................................................................................145
8.4.1 Transition to Standby Mode .......................................................................145
8.4.2 Canceling Standby Mode...........................................................................146
8.4.3 Clock Pause Function...............................................................................147
8.5 Module Standby Function .....................................................................................147
8.5.1 Transition to Module Standby Function .......................................................147
8.5.2 Clearing the Module Standby Function ........................................................148
8.6 Timing of STATUS Pin Changes...........................................................................148
8.6.1 Timing for Resets ....................................................................................148
8.6.2 Timing for Canceling Standbys ..................................................................150
8.6.3 Timing for Canceling Sleep Mode...............................................................151
8.7 Hardware Standby Mode........................................................................................153
8.7.1 Transition to Hardware Standby Mode..........................................................153
4