7641 datasheet(5/385 Pages) RENESAS

5 / 385 page

Rev.2.00

Aug 28, 2006

page 1 of 13

7641 Group

REJ09B0336-0200

Table of contents

CHAPTER 1 HARDWARE

DESCRIPTION ................................................................................................................................... 2

FEATURES ........................................................................................................................................ 2

APPLICATION ................................................................................................................................... 2

PIN CONFIGURATION ..................................................................................................................... 3

FUNCTIONAL BLOCK ..................................................................................................................... 4

PIN DESCRIPTION ........................................................................................................................... 5

PART NUMBERING .......................................................................................................................... 7

GROUP EXPANSION ....................................................................................................................... 8

Memory Type ............................................................................................................................... 8

Memory Size ................................................................................................................................8

Packages ...................................................................................................................................... 8

FUNCTIONAL DESCRIPTION ......................................................................................................... 9

Central Processing Unit (CPU) ................................................................................................. 9

Memory ....................................................................................................................................... 13

I/O Ports ..................................................................................................................................... 15

Interrupts .................................................................................................................................... 21

Timers ......................................................................................................................................... 25

Serial I/O .................................................................................................................................... 29

UART1, UART2 ......................................................................................................................... 33

DMAC .......................................................................................................................................... 39

USB Function ............................................................................................................................. 44

Master CPU Bus Interface ....................................................................................................... 60

Count Source Generator .......................................................................................................... 65

Frequency Synthesizer ............................................................................................................. 67

Reset Circuit .............................................................................................................................. 69

Clock Generating Circuit .......................................................................................................... 71

Processor Mode ......................................................................................................................... 75

FLASH MEMORY MODE ............................................................................................................... 81

NOTES ON PROGRAMMING ...................................................................................................... 108

USAGE NOTES ............................................................................................................................. 111

DATA REQUIRED FOR MASK ORDERS ................................................................................. 112

FUNCTIONAL DESCRIPTION SUPPLEMENT .......................................................................... 113

CHAPTER 2 APPLICATION

2.1 I/O port ........................................................................................................................................ 2

2.1.1 Memory map ...................................................................................................................... 2

2.1.2 Related registers ............................................................................................................... 3

2.1.3 Key-on wake-up interrupt application example ............................................................. 7

2.1.4 Terminate unused pins ..................................................................................................... 9

2.1.5 Notes on I/O port ............................................................................................................ 10

2.1.6 Termination of unused pins ........................................................................................... 11

2.2 Timer .......................................................................................................................................... 12

2.2.1 Memory map .................................................................................................................... 12

2.2.2 Related registers ............................................................................................................. 13

2.2.3 Timer application examples ........................................................................................... 20

2.2.4 Notes on timer ................................................................................................................. 37

Table of contents

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