3822 datasheet(8/328 Pages) RENESAS

8 / 328 page

Table of contents

3822 GROUP USER’S MANUAL

iii

CHAPTER 3. APPENDIX

3.1 Built-in PROM version .......................................................................................................... 3-2

3.1.1 Product expansion ........................................................................................................... 3-2

3.1.2 Performance overview ..................................................................................................... 3-3

3.1.3 Pin configuration .............................................................................................................. 3-4

3.1.4 Functional block diagram ................................................................................................ 3-7

3.1.5 Notes on use ................................................................................................................... 3-8

3.2 Countermeasures against noise ....................................................................................... 3-10

3.2.1 Shortest wiring length .................................................................................................... 3-10

3.2.2 Connection of a bypass capacitor across the VSS line and the VCC line ....................... 3-11

3.2.3 Wiring to analog input pins ............................................................................................ 3-12

3.2.4 Oscillator concerns ........................................................................................................ 3-12

3.2.5 Installing an oscillator away from signal lines where potential levels change frequently............................ 3-13

3.2.6 Oscillator protection using VSS pattern .......................................................................... 3-13

3.2.7 Set up for I/O ports ........................................................................................................ 3-13

3.2.8 Providing of watchdog timer function by software ......................................................... 3-14

3.3 Control registers .................................................................................................................. 3-15

3.4 List of instruction codes ................................................................................................... 3-29

3.5 Machine instructions ........................................................................................................... 3-30

3.6 Mask ROM ordering method ............................................................................................. 3-40

3.7 Mark specification form ..................................................................................................... 3-44

3.8 Package outlines ................................................................................................................. 3-46

3.9 SFR allocation ...................................................................................................................... 3-48

3.10 Pin configuration ............................................................................................................... 3-49

3822 Datasheet(PDF) 8 Page - Renesas Technology Corp