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21.2 Interrupt Sources and Configuration ................................................................................. 478
21.3 Interrupt Function Control Registers................................................................................. 482
21.4 Interrupt Servicing Operations ........................................................................................... 491
21.4.1 Non-maskable interrupt acknowledge operation ..................................................................... 491
21.4.2 Maskable Interrupt request reception ...................................................................................... 494
21.4.3 Software interrupt request acknowledge operation ................................................................. 497
21.4.4 Multiple interrupt servicing ....................................................................................................... 497
21.4.5 Interrupt request reserve ......................................................................................................... 501
21.5 Test Functions ..................................................................................................................... 502
21.5.1 Registers controlling the test function ..................................................................................... 502
21.5.2 Test input signal acknowledge operation................................................................................. 504
CHAPTER 22 EXTERNAL DEVICE EXPANSION FUNCTION ............................................................ 505
22.1 External Device Expansion Functions............................................................................... 505
22.2 External Device Expansion Function Control Register ................................................... 508
22.3 External Device Expansion Function Timing .................................................................... 510
CHAPTER 23 STANDBY FUNCTION ................................................................................................... 515
23.1 Standby Function and Configuration ................................................................................ 515
23.1.1 Standby function ...................................................................................................................... 515
23.1.2 Standby function control register ............................................................................................. 516
23.2 Standby Function Operations ............................................................................................ 517
23.2.1 HALT mode.............................................................................................................................. 517
23.2.2 STOP mode ............................................................................................................................. 520
CHAPTER 24 RESET FUNCTION ........................................................................................................ 523
24.1 Reset Function ..................................................................................................................... 523
CHAPTER 25 ROM CORRECTION ...................................................................................................... 527
25.1 ROM Correction Functions ................................................................................................. 527
25.2 ROM Correction Configuration........................................................................................... 527
25.3 ROM Correction Control Registers .................................................................................... 529
25.4 ROM Correction Application............................................................................................... 530
25.5 ROM Correction Example ................................................................................................... 533
25.6 Program Execution Flow..................................................................................................... 534
25.7 Cautions on ROM Correction ............................................................................................. 536
CHAPTER 26
µ
PD78P058F, 78P058FY ............................................................................................... 537
26.1 Memory Size Switching Register ....................................................................................... 538
26.2 Internal Expansion RAM Size Switching Register ............................................................ 539
26.3 PROM Programming............................................................................................................ 540
26.3.1 Operating modes ..................................................................................................................... 540
26.3.2 PROM write procedure ............................................................................................................ 542