UPD780949 datasheet(4/69 Pages) RENESAS

4 / 69 page

µPD780949(A)

Contents

Pin Configuration (Top View) ....................................................................................................... 5

Block Diagram ................................................................................................................................ 7

Pin Functions ................................................................................................................................. 8

3.1 Normal Operating Mode Pins ....................................................................................................... 8

3.2 Non-port Pins ............................................................................................................................... 10

3.3 Pin I/O Circuits and Recommended Connection of Unused Pins .......................................... 12

Memory Space .............................................................................................................................. 18

Peripheral Hardware Functions .................................................................................................. 19

5.1 Ports .............................................................................................................................................. 19

5.2 Clock Generator ........................................................................................................................... 20

5.3 Main System Clock Oscillator .................................................................................................... 20

5.4 Subsystem Clock Oscillator ....................................................................................................... 21

5.5 Timer/Event Counter ................................................................................................................... 21

5.6 Clock Output Control Circuit ..................................................................................................... 27

5.7 Sound Generator .......................................................................................................................... 29

5.8 A/D Converter ............................................................................................................................... 30

5.9 Power Fail Detector ..................................................................................................................... 31

5.10 Serial Interfaces ........................................................................................................................... 32

5.11 CAN-Bus Interface ....................................................................................................................... 34

5.12 LCD Controller/Driver .................................................................................................................. 34

Interrupt Functions and Test Functions .................................................................................... 36

6.1 Interrupt Functions ...................................................................................................................... 36

6.2 Interrupts ...................................................................................................................................... 37

External Device Expansion Functions ....................................................................................... 39

EEPROM Function ....................................................................................................................... 39

Standby Function ......................................................................................................................... 39

10. Reset Function ............................................................................................................................. 39

11. Instruction Set .............................................................................................................................. 40

12. Electrical Specifications ............................................................................................................. 43

13. Package Drawings ........................................................................................................................ 62

14. Recommended Soldering Conditions ........................................................................................ 63

Appendix A.

Development Tools ................................................................................................... 64

Appendix B.

Related Documents .................................................................................................. 65

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