SH7021 datasheet(19/509 Pages) RENESAS

19 / 509 page

16.2.2 Socket Adapter Pin Correspondence and Memory Map ..................................... 421

16. 3 PROM Programming ......................................................................................................... 423

16.3.1 Selecting the Programming Mode........................................................................ 423

16.3.2 Write/Verify and Electrical Characteristics.......................................................... 424

16.3.3 Points to Note About Writing............................................................................... 428

16.3.4 Reliability After Writing ...................................................................................... 429

Section 17 RAM .................................................................................................................. 431

17.1

Overview............................................................................................................................ 431

17.2

Operation ........................................................................................................................... 431

Section 18 Power-Down States ...................................................................................... 433

18.1

Overview............................................................................................................................ 433

18.1.1 Power-Down Modes ............................................................................................. 433

18.1.2 Register................................................................................................................. 434

18.2

Standby Control Register (SBYCR).................................................................................. 434

18.3

Sleep Mode ........................................................................................................................ 435

18.3.1 Transition to the Sleep Mode ............................................................................... 435

18.3.2 Canceling the Sleep Mode.................................................................................... 435

18.4

Standby Mode .................................................................................................................... 436

18.4.1 Transition to the Standby Mode ........................................................................... 436

18.4.2 Canceling the Standby Mode................................................................................ 438

18.4.3 Standby Mode Application................................................................................... 439

Section 19 Electrical Characteristics ............................................................................ 441

19.1

Absolute Maximum Ratings.............................................................................................. 441

19.2

DC Characteristics ............................................................................................................. 442

19.3

AC Characteristics ............................................................................................................. 449

19.3.1 Clock Timing........................................................................................................ 449

19.3.2 Control Signal Timing.......................................................................................... 451

19.3.3 Bus Timing ........................................................................................................... 454

19.3.4 DMAC Timing ..................................................................................................... 490

19.3.5 16-bit Integrated Timer Pulse Unit Timing.......................................................... 491

19.3.6 Programmable Timing Pattern Controller and I/O Port Timing .......................... 493

19.3.7 Watchdog Timer Timing ...................................................................................... 494

19.3.8 Serial Communications Interface Timing ............................................................ 495

19.3.9 AC Characteristics Measurement Conditions ...................................................... 497

19.4

Usage Note ........................................................................................................................ 498

Appendix A On-Chip Peripheral Module Registers ................................................ 499

A.1

List of Registers................................................................................................................. 499

A.2

Register tables.................................................................................................................... 509

A.2.1

Serial Mode Register (SMR)................................................................................ 509

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