7733 datasheet(13/940 Pages) RENESAS

13 / 940 page

7733 Group User’s Manual

Table of contents

CHAPTER 14. CLOCK GENERATING CIRCUIT

14.1 Overview .............................................................................................................................. 14-2

14.2 Oscillation circuit example .............................................................................................. 14-3

14.2.1 Main-clock oscillation circuit example ..................................................................... 14-3

14.2.2 Sub-clock oscillation circuit example ...................................................................... 14-4

14.3 Clock control ...................................................................................................................... 14-5

14.3.1 Clock generated in clock generating circuit ........................................................... 14-6

14.3.2 System clock switching procedure ........................................................................ 14-11

14.3.3 Clock transition ......................................................................................................... 14-14

14.3.4 Clock prescaler reset ............................................................................................... 14-15

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 ............................................................................................................... 15-11

15.7 Single-chip mode ............................................................................................................. 15-13

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

15.9 Memory expansion mode and microprocessor mode : with wait 1 ................... 15-17

15.10 Memory expansion mode and microprocessor mode : with wait 0 ................. 15-19

15.11 Testing circuit for ports P0 to P8,

φ 1, and E....................................................... 15-21

CHAPTER 16. STANDARD CHARACTERISTICS

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

16.1.1 Programmable I/O port (CMOS output) standard characteristics: P0 to P3, P40 to P43, P54 to P57,

P6, P7, and P8 ......................................................................................................................................... 16-2

16.1.2 Programmable I/O port (CMOS output) standard characteristics: P44 to P47 and P50 to P53 ..... 16-3

16.1.3 Icc–f(XIN) standard characteristics ........................................................................... 16-4

16.1.4 A-D converter standard characteristics .................................................................... 16-5

CHAPTER 17. APPLICATIONS

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

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

17.1.2 Calculation ways for timing ....................................................................................... 17-4

17.1.3 Points in memory expansion ..................................................................................... 17-7

17.1.4 Memory expansion example ................................................................................... 17-19

17.1.5 I/O expansion example ............................................................................................ 17-25

17.2 Serial I/O ............................................................................................................................ 17-28

17.2.1 Connection examples with external device (Clock synchronous serial I/O mode) ....................... 17-28

17.2.2 Examples of transmission for several peripheral ICs (Clock synchronous serial I/O mode) ..... 17-30

17.2.3 Transmission/Reception example (UART mode, transfer data length = 8 bits) ........................... 17-33

17.2.4 8-bit transmission example (Clock synchronous serial I/O mode) .................... 17-38

17.3 Watchdog timer ................................................................................................................ 17-41

17.3.1 Program runaway detection example .................................................................... 17-41

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