SH7041A datasheet(36/923 Pages) RENESAS

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xiv

22.8.3 Error Protection .................................................................................................... 720

22.9

Flash Memory Emulation in RAM .................................................................................... 722

22.10 Note on Flash Memory Programming/Erasing .................................................................. 724

22.11 Flash Memory Programmer Mode..................................................................................... 724

22.11.1 Socket Adapter Pin Correspondence Diagrams ................................................... 725

22.11.2 Programmer Mode Operation............................................................................... 728

22.11.3 Memory Read Mode............................................................................................. 729

22.11.4 Auto-Program Mode............................................................................................. 733

22.11.5 Auto-Erase Mode.................................................................................................. 735

22.11.6 Status Read Mode................................................................................................. 736

22.11.7 Status Polling ........................................................................................................ 737

22.11.8 Programmer Mode Transition Time ..................................................................... 738

22.11.9 Cautions Concerning Memory Programming....................................................... 739

Section 23 RAM ................................................................................................................... 741

23.1

Overview............................................................................................................................ 741

23.2

Operation ........................................................................................................................... 741

Section 24 Power-Down State.......................................................................................... 743

24.1

Overview............................................................................................................................ 743

24.1.1 Power-Down States .............................................................................................. 743

24.1.2 Related Register.................................................................................................... 744

24.2

Standby Control Register (SBYCR) .................................................................................. 744

24.3

Sleep Mode ........................................................................................................................ 745

24.3.1 Transition to Sleep Mode ..................................................................................... 745

24.3.2 Canceling Sleep Mode.......................................................................................... 745

24.4

Standby Mode .................................................................................................................... 745

24.4.1 Transition to Standby Mode ................................................................................. 745

24.4.2 Canceling the Standby Mode................................................................................ 747

24.4.3 Standby Mode Application Example.................................................................... 748

Section 25 Electrical Characteristics (5V, 28.7 MHz Version) ............................. 749

25.1

Absolute Maximum Ratings .............................................................................................. 749

25.2

DC Characteristics ............................................................................................................. 750

25.3

AC Characteristics ............................................................................................................. 752

25.3.1 Clock Timing ........................................................................................................ 752

25.3.2 Control Signal Timing .......................................................................................... 754

25.3.3 Bus Timing ........................................................................................................... 757

25.3.4 Direct Memory Access Controller Timing........................................................... 768

25.3.5 Multifunction Timer Pulse Unit Timing............................................................... 770

25.3.6 I/O Port Timing..................................................................................................... 771

25.3.7 Watchdog Timer Timing ...................................................................................... 772

25.3.8 Serial Communication Interface Timing .............................................................. 773

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