4

µPD6P9

Data Sheet U15144EJ1V1DS

CONTENTS

1.

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

6

1.1

Normal Operation Mode ....................................................................................................................

6

1.2

PROM Programming Mode ...............................................................................................................

7

1.3

Pins I/O Circuits .................................................................................................................................

8

1.4

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

9

1.5

Notes on Using KI Pin After Reset ...................................................................................................

9

2.

DIFFERENCES BETWEEN

µPD67, 67A, 68, 68A, 69, 69A, AND µPD6P9 .............................. 10

3.

INTERNAL CPU FUNCTIONS .................................................................................................. 11

3.1

Program Counter (PC): 12 Bits ........................................................................................................ 11

3.2

Stack Pointer (SP): 1 Bit ................................................................................................................... 11

3.3

Address Stack Register (ASR (RF)): 12 Bits ...................................................................................11

3.4

Program Memory (One-Time PROM): 4,074 Steps

× 10 Bits ......................................................... 12

3.5

Data Memory (RAM): 128

× 4 Bits .................................................................................................... 13

3.6

Data Pointer (DP): 12 Bits ................................................................................................................. 14

3.7

Accumulator (A): 4 Bits .................................................................................................................... 14

3.8

Arithmetic and Logic Unit (ALU): 4 Bits .......................................................................................... 14

3.9

Flags ................................................................................................................................................... 15

3.9.1

Status flag (F) .......................................................................................................................... 15

3.9.2

Carry flag (CY) ........................................................................................................................ 15

4.

TIMER ......................................................................................................................................... 16

4.1

Timer Configuration .......................................................................................................................... 16

4.2

Timer Operation ................................................................................................................................. 17

4.3

Carrier Output .................................................................................................................................... 19

4.3.1

Carrier output generator .......................................................................................................... 19

4.3.2

Carrier output control .............................................................................................................. 20

4.4

Software Control of Timer Output ................................................................................................... 22

5.

WRITING AND VERIFYING ONE-TIME PROM (PROGRAM MEMORY) .................................. 23

5.1

Operating Mode When Writing/Verifying Program Memory ..........................................................

23

5.2

Program Memory Writing Procedure ............................................................................................... 24

5.3

Program Memory Reading Procedure .............................................................................................25

6.

ELECTRICAL SPECIFICATIONS ............................................................................................... 26

7.

CHARACTERISTIC CURVES (REFERENCE VALUES) (

µPD6P9M1)...................................... 32

8.

APPLICATION CIRCUIT EXAMPLE .......................................................................................... 33

9.

PACKAGE DRAWING ................................................................................................................ 36