Datasheet

Rev. 3.00, 03/04, page xi of xl
5.4.1 External Interrupts ............................................................................................... 82
5.4.2 Internal Interrupts ................................................................................................84
5.5 Interrupt Exception Handling Vector Table...................................................................... 85
5.6 Interrupt Control Modes and Interrupt Operation............................................................. 88
5.6.1 Interrupt Control Mode 0..................................................................................... 90
5.6.2 Interrupt Control Mode 1..................................................................................... 92
5.6.3 Interrupt Exception Handling Sequence ..............................................................94
5.6.4 Interrupt Response Times .................................................................................... 96
5.6.5 DTC Activation by Interrupt................................................................................ 97
5.7 Usage Notes ...................................................................................................................... 99
5.7.1 Conflict between Interrupt Generation and Disabling ......................................... 99
5.7.2 Instructions that Disable Interrupts...................................................................... 100
5.7.3 Interrupts during Execution of EEPMOV Instruction.......................................... 100
5.7.4 IRQ Status Registers (ISR16, ISR) ...................................................................... 100
Section 6 Bus Controller (BSC).........................................................................101
6.1 Features............................................................................................................................. 101
6.2 Input/Output Pins.............................................................................................................. 104
6.3 Register Descriptions........................................................................................................ 105
6.3.1 Bus Control Register (BCR) ................................................................................ 105
6.3.2 Bus Control Register 2 (BCR2) ........................................................................... 106
6.3.3 Wait State Control Register (WSCR) .................................................................. 108
6.3.4 Wait State Control Register 2 (WSCR2) ............................................................. 110
6.4 Bus Control....................................................................................................................... 112
6.4.1 Bus Specifications................................................................................................ 112
6.4.2 Advanced Mode................................................................................................... 122
6.4.3 I/O Select Signals................................................................................................. 123
6.5 Bus Interface ..................................................................................................................... 124
6.5.1 Data Size and Data Alignment............................................................................. 124
6.5.2 Valid Strobes ....................................................................................................... 126
6.5.3 Basic Operation Timing in Normal Extended Mode ........................................... 127
6.5.4 Basic Operation Timing in Address-Data Multiplex Extended Mode ................. 135
6.5.5 Wait Control ........................................................................................................ 141
6.6 Burst ROM Interface......................................................................................................... 145
6.6.1 Basic Operation Timing....................................................................................... 145
6.6.2 Wait Control ........................................................................................................ 146
6.7 Idle Cycle.......................................................................................................................... 147
6.8 Bus Arbitration.................................................................................................................. 148
6.8.1 Overview.............................................................................................................. 148
6.8.2 Operation ............................................................................................................. 148
6.8.3 Bus Mastership Transfer Timing ......................................................................... 148