
Rev. 1.00 Mar. 18, 2008 Page xxii of xxiv
20.7.6 Notes on Noise Countermeasures ......................................................................... 637
20.7.7 Module Stop Mode Setting ................................................................................... 638
Section 21 RAM ................................................................................................ 639
Section 22 Flash Memory.................................................................................. 641
22.1
Features.............................................................................................................................. 641
22.2
Mode Transition Diagram.................................................................................................. 643
22.3
Flash Memory MAT Configuration ................................................................................... 645
22.4
Block Structure .................................................................................................................. 646
22.5
Programming/Erasing Interface ......................................................................................... 647
22.6
Input/Output Pins ...............................................................................................................649
22.7
Register Descriptions ......................................................................................................... 650
22.7.1 Programming/Erasing Interface Registers ............................................................ 651
22.7.2 Programming/Erasing Interface Parameters ......................................................... 658
22.8
On-Board Programming Mode .......................................................................................... 668
22.8.1 Boot Mode ............................................................................................................ 668
22.8.2 User Program Mode.............................................................................................. 672
22.8.3 User Boot Mode.................................................................................................... 681
22.8.4 Storable Areas for On-Chip Program and Program Data...................................... 685
22.9
Protection ........................................................................................................................... 689
22.9.1 Hardware Protection ............................................................................................. 689
22.9.2 Software Protection............................................................................................... 690
22.9.3 Error Protection .................................................................................................... 690
22.10 Switching between User MAT and User Boot MAT......................................................... 692
22.11 Programmer Mode ............................................................................................................. 693
22.12 Standard Serial Communication Interface Specifications for Boot Mode ......................... 693
22.13 Usage Notes ....................................................................................................................... 722
Section 23 Clock Pulse Generator ..................................................................... 725
23.1
Oscillator............................................................................................................................ 726
23.1.1 Connecting Crystal Resonator .............................................................................. 726
23.1.2 External Clock Input Method................................................................................ 727
23.2
Duty Correction Circuit ..................................................................................................... 729
23.3
Subclock Input Circuit ....................................................................................................... 730
23.4
Subclock Waveform Forming Circuit................................................................................ 731
23.5
Clock Select Circuit ........................................................................................................... 731
23.6
Usage Notes ....................................................................................................................... 732
23.6.1 Notes on Resonator............................................................................................... 732
23.6.2 Notes on Board Design ......................................................................................... 732