µPD75312(A), 75316(A)

5

CONTENTS

1.

PIN CONFIGURATION (Top View) ................................................................................................

7

2.

BLOCK DIAGRAM ...........................................................................................................................

8

3.

PIN FUNCTIONS ..............................................................................................................................

9

3.1

PORT PINS .............................................................................................................................................

9

3.2

NON PORT PINS ...................................................................................................................................

11

3.3

PIN INPUT/OUTPUT CIRCUITS ...........................................................................................................

13

3.4

RECOMMENDED PROCESSING OF UNUSED PINS ..........................................................................

15

3.5

NOTES ON USING THE P00/INT4, AND RESET PINS ......................................................................

16

4.

MEMORY CONFIGURATION ..........................................................................................................

16

5.

PERIPHERAL HARDWARE FUNCTIONS ........................................................................................

20

5.1

PORTS ....................................................................................................................................................

20

5.2

CLOCK GENERATOR CIRCUIT ............................................................................................................

21

5.3

CLOCK OUTPUT CIRCUIT ....................................................................................................................

22

5.4

BASIC INTERVAL TIMER .....................................................................................................................

23

5.5

WATCH TIMER ......................................................................................................................................

24

5.6

TIMER/EVENT COUNTER .....................................................................................................................

25

5.7

SERIAL INTERFACE ..............................................................................................................................

27

5.8

LCD CONTROLLER/DRIVER ..................................................................................................................

29

5.9

BIT SEQUENTIAL BUFFER ...................................................................................................................

31

6.

INTERRUPT FUNCTIONS ................................................................................................................

31

7.

STANDBY FUNCTIONS ..................................................................................................................

33

8.

RESET FUNCTION ...........................................................................................................................

34

9.

INSTRUCTION SET .........................................................................................................................

36

10. SELECTION OF MASK OPTION .....................................................................................................

42

11. ELECTRICAL SPECIFICATIONS ......................................................................................................

43

12. PACKAGE DRAWINGS ...................................................................................................................

55