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5.7.1
Conflict between Interrupt Generation and Disabling ......................................... 82
5.7.2
Instructions that Disable Interrupts ...................................................................... 83
5.7.3
When Interrupts Are Disabled ............................................................................. 83
5.7.4
Interrupts during Execution of EEPMOV Instruction.......................................... 84
Section 6 PC Break Controller (PBC) .............................................................. 85
6.1 Features ............................................................................................................................. 85
6.2 Register
Descriptions ........................................................................................................ 86
6.2.1
Break Address Register A (BARA) ..................................................................... 86
6.2.2
Break Address Register B (BARB)...................................................................... 87
6.2.3
Break Control Register A (BCRA) ...................................................................... 87
6.2.4
Break Control Register B (BCRB)....................................................................... 88
6.3 Operation........................................................................................................................... 88
6.3.1
PC Break Interrupt Due to Instruction Fetch ....................................................... 88
6.3.2
PC Break Interrupt Due to Data Access............................................................... 88
6.3.3
PC Break Operation at Consecutive Data Transfer.............................................. 89
6.3.4
Operation in Transitions to Power-Down Modes................................................. 89
6.3.5
When Instruction Execution Is Delayed by One State ......................................... 90
6.4 Usage
Notes ...................................................................................................................... 91
6.4.1
Module Stop Mode Setting .................................................................................. 91
6.4.2
PC Break Interrupts.............................................................................................. 91
6.4.3
CMFA and CMFB ............................................................................................... 91
6.4.4
PC Break Interrupt when DTC Is Bus Master...................................................... 91
6.4.5
PC Break Set for Instruction Fetch at Address Following
BSR, JSR, JMP, TRAPA, RTE, or RTS Instruction ............................................ 91
6.4.6
I Bit Set by LDC, ANDC, ORC, or XORC Instruction ....................................... 91
6.4.7
PC Break Set for Instruction Fetch at Address Following Bcc Instruction.......... 92
6.4.8
PC Break Set for Instruction Fetch at Branch Destination Address of Bcc
Instruction ............................................................................................................ 92
Section 7 Bus Controller ................................................................................... 93
7.1 Basic
Timing ..................................................................................................................... 93
7.1.1
On-Chip Memory Access Timing (ROM, RAM) ................................................ 93
7.1.2
On-Chip Support Module Access Timing............................................................ 94
7.1.3
On-Chip HCAN Module Access Timing ............................................................. 94
7.1.4
On-chip SSU Module and Realtime Input Port Data Register Access Timing .... 95
7.2 Bus
Arbitration.................................................................................................................. 95
7.2.1
Order of Priority of the Bus Masters.................................................................... 95
7.2.2
Bus Transfer Timing ............................................................................................ 96
Section 8 Data Transfer Controller (DTC) ....................................................... 97
8.1 Features ............................................................................................................................. 97
8.2 Register
Descriptions ........................................................................................................ 99
Summary of Contents for H8S/2627
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