UPD75112 datasheet(5/74 Pages) RENESAS

5 / 74 page

µPD75112, 75116

CONTENTS

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

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

Pin Functions.........................................................................................................................

3.1

Port Pins........................................................................................................................................................ 8

3.2

Non-Port Pins............................................................................................................................................... 9

3.3

Pin Input/Output Circuits............................................................................................................................ 10

3.4

Recommended Connection of Unused Pins............................................................................................. 11

3.5

Caution Relating to Use of P00/INT4 Pin and RESET Pin........................................................................ 11

Memory Configuration............................................................................................................. 12

Peripheral Hardware Functions.............................................................................................. 15

5.1

Digital Input/Output Port......................................................................................................................... 15

5.2

Clock Generator......................................................................................................................................... 15

5.3

Clock Output Circuit.................................................................................................................................. 17

5.4

Basic Interval Timer.................................................................................................................................... 17

5.5

Timer/Event Counter................................................................................................................................. 18

5.6

Serial Interface............................................................................................................................................ 20

5.7

Programmable Threshold Port (Analog Input Port)............................................................................... 22

5.8

Bit Sequential Buffer................................................................................................................................... 23

5.9

Power-On Flag (Mask Option).................................................................................................................... 23

Interrupt Functions.................................................................................................................. 24

Standby Functions ............................................................................................................... 26

Reset Functions..................................................................................................................... 27

Instruction Set....................................................................................................................... 30

10. Application Block Diagrams............................................................................................... ... 38

10.1 VCR System Computer Applications ...................................................................................................... 38

10.2 VCR Camera Applications ........................................................................................................................ 39

10.3 Compact Disk Player ................................................................................................................................. 39

10.4 Vehicle-Mounted Applications (Trip Computer) .................................................................................... 40

10.5 Push-Button Telephone ............................................................................................................................ 40

10.6 Display Pager ..............................................................................................................................................41

10.7 PPC .............................................................................................................................................................. 41

10.8 Printer Controller ...................................................................................................................................... 42

11. Mask Option Selection..........................................................................................................

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

13. Characteristic Curves...........................................................................................................

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