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Contents
12.3.4 Multiplexed-Interrupt Handling.............................................................................. 313
12.3.5 Interrupt Request and Macro Service Pending.................................................... 316
12.3.6 Interrupt and Macro Service Operation Timing ..................................................317
12.4 MACRO SERVICE FUNCTION............................................................................................. 319
12.4.1 Macro Service Outline............................................................................................. 319
12.4.2 Macro Service Types ...............................................................................................320
12.4.3 Macro Service Basic Operation.............................................................................. 321
12.4.4 Macro Service Control Register .............................................................................322
12.4.5 Macro Service Type A .............................................................................................323
12.4.6 Type B Macro Service .............................................................................................327
12.4.7 Macro Service Type C .............................................................................................331
12.5 NOTES................................................................................................................................... 343
CHAPTER 13 LOCAL BUS INTERFACE FUNCTION...........................................................................................345
13.1 CONTROL REGISTERS ........................................................................................................346
13.1.1 Memory Expansion Mode Register (MM) ............................................................346
13.1.2 Programmable Wait Control Register (PW) .........................................................347
13.2 MEMORY EXPANSION FUNCTION ...................................................................................347
13.2.1 External Memory Expansion Function ..................................................................347
13.2.2 1M-Byte Expansion Function .................................................................................348
13.2.3 Memory Mapping with Expanded Memory .........................................................350
13.2.4 Example of Connecting Memories ........................................................................355
13.3 INTERNAL ROM HIGH-SPEED FETCH FUNCTION...........................................................357
13.4 WAIT FUNCTION..................................................................................................................357
13.5 PSEUDO STATIC RAM REFRESH FUNCTION ..................................................................367
13.5.1 Function ....................................................................................................................367
13.5.2 Refresh Mode Register (RFM) ................................................................................367
13.5.3 Operation ..................................................................................................................368
13.5.4 Example of Connecting Pseudo Static RAM ........................................................372
13.6 NOTES................................................................................................................................... 372
CHAPTER 14 STANDBY FUNCTION ...................................................................................................................377
14.1 FUNCTION OVERVIEW........................................................................................................3 77
14.2 STANDBY CONTROL REGISTER (STBC) ..........................................................................379
14.3 HALT MODE..........................................................................................................................379
14.3.1 Specifying HALT Mode and Operation States in HALT Mode........................... 379
14.3.2 Releasing HALT Mode............................................................................................. 380
14.4 STOP MODE .........................................................................................................................382
14.4.1 Specifying STOP Mode and Operation States in STOP Mode ..........................382
14.4.2 Releasing STOP Mode............................................................................................. 382
14.4.3 Notes on Using STOP Mode ..................................................................................384
14.5 NOTES................................................................................................................................... 386
CHAPTER 15 RESET FUNCTION .........................................................................................................................389
15.1 RESET FUNCTION................................................................................................................389
15.2 NOTE .....................................................................................................................................393