NEC PD78058FY(A) User Manual
Page 21

21
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