NEC PD78214 - Manual (Page 17)

- vi -
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 ........................................................................................................377
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