7702 datasheet(11/217 Pages) RENESAS

11 / 217 page

Table of Contents

7702/7703 Group User’s Manual

CHAPTER 13. RESET

13.1 Hardware reset .................................................................................................................. 13-2

13.1.1 Pin state ..................................................................................................................... 13-3

13.1.2 State of CPU, SFR area, and internal RAM area................................................. 13-4

13.1.3 Internal processing sequence after reset ............................................................... 13-9

______

13.1.4 Time supplying “L” level to RESET pin ................................................................ 13-10

13.2 Software reset .................................................................................................................. 13-12

CHAPTER 14. CLOCK GENERATING CIRCUIT

14.1 Oscillation circuit example ............................................................................................. 14-2

14.1.1 Connection example using resonator/oscillator ...................................................... 14-2

14.1.2 Input example of externally generated clock ......................................................... 14-2

14.2 Clock .................................................................................................................................... 14-3

14.2.1 Clock generated in clock generating circuit ........................................................... 14-4

CHAPTER 15. ELECTRICAL CHARACTERISTICS

15.1 Absolute maximum ratings ............................................................................................. 15-2

15.2 Recommended operating conditions ............................................................................ 15-3

15.3 Electrical characteristics ................................................................................................. 15-4

15.4 A-D converter characteristics ........................................................................................ 15-5

15.5 Internal peripheral devices ............................................................................................. 15-6

15.6 Ready and Hold ............................................................................................................... 15-12

15.7 Single-chip mode ............................................................................................................ 15-15

15.8 Memory expansion mode and microprocessor mode : with no Wait................ 15-17

15.9 Memory expansion mode and microprocessor mode : with Wait ...................... 15-21

15.10 Testing circuit for ports P0 to P8,

φ 1, and E ........................................................15-25

CHAPTER 16. STANDARD CHARACTERISTICS

16.1 Standard characteristics ................................................................................................. 16-2

16.1.1 Port standard characteristics .................................................................................... 16-2

16.1.2 ICC–f(XIN) standard characteristics ............................................................................ 16-3

16.1.3 A–D converter standard characteristics .................................................................. 16-4

CHAPTER 17. APPLICATIONS

17.1 Memory expansion ............................................................................................................ 17-2

17.1.1 Memory expansion model ......................................................................................... 17-2

17.1.2 How to calculate timing ............................................................................................ 17-4

17.1.3 Points in memory expansion .................................................................................... 17-8

17.1.4 Example of memory expansion .............................................................................. 17-20

17.1.5 Example of I/O expansion ...................................................................................... 17-26

17.2 Sample program execution rate comparison ........................................................... 17-29

17.2.1 Difference depending on data bus width and software Wait .............................17-29

17.2.2 Comparison software Wait (f(XIN) = 20 MHz) with software Wait + Ready (f(XIN) = 25 MHz) .. 17-31

CHAPTER 18. LOW VOLTAGE VERSION

18.1 Performance overview ..................................................................................................... 18-3

18.2 Pin configuration .............................................................................................................. 18-4

18.3 Functional description ..................................................................................................... 18-6

18.3.1 Power-on reset conditions ........................................................................................ 18-7

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