NEC PD78212, PD78213, PD78214, PD78P214 user manual CONTENTS

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Contents
CONTENTS
CHAPTER 1 GENERAL........................................................................................................................................ 1
1.1 FEATURES ............................................................................................................................3
1.2 ORDERING INFORMATION AND QUALITY GRADE........................................................ 4
1.2.1 Ordering Information................................................................................................. 4
1.2.2 Quality Grade .............................................................................................................5
1.3 PIN CONFIGURATION (TOP VIEW)....................................................................................6
1.3.1 Normal Operating Mode ...........................................................................................6
1.3.2 PROM Programming Mode ......................................................................................11
1.4 EXAMPLE APPLICATION SYSTEM (PRINTER)................................................................. 16
1.5 BLOCK DIAGRAM ................................................................................................................17
1.6 FUNCTIONS.......................................................................................................................... 18
1.7 DIFFERENCES BETWEEN THE µ PD78210 AND µ PD78213 .............................................20
1.8 DIFFERENCES BETWEEN THE µ PD78214 SUB-SERIES AND µ PD78218A SUB-SERIES...... 21
1.9 DIFFERENCES BETWEEN THE µ PD78212 AND µ PD78212(A) ........................................22
1.10 DIFFERENCES BETWEEN THE µ PD78213 AND µ PD78214, AND THE µ PD78213(A)
AND µ PD78214(A)................................................................................................................ 22
1.11 DIFFERENCES BETWEEN THE µ PD78P214 AND µ PD78P214(A)....................................22
1.12 DIFFERENCES BETWEEN THE µ PD78212, µ PD78213, µ PD78214, AND µ PD78P214... 23
1.12.1 Functional Differences ...........................................................................................23
1.12.2 Package Differences ...............................................................................................23
CHAPTER 2 PIN FUNCTIONS ............................................................................................................................25
2.1 PIN FUNCTION LIST ............................................................................................................25
2.1.1 Normal Operating Mode ...........................................................................................25
2.1.2 PROM Programming Mode ......................................................................................27
2.2 PIN FUNCTIONS...................................................................................................................27
2.2.1 Normal Operating Mode ...........................................................................................27
2.2.2 PROM Programming Mode ......................................................................................31
2.3 I/O CIRCUITS AND UNUSED-PIN HANDLING.................................................................. 33
2.4 NOTES................................................................................................................................... 35
CHAPTER 3 CPU FUNCTION .............................................................................................................................37
3.1 MEMORY SPACE .................................................................................................................37
3.1.1 Internal Program Memory Area ...............................................................................42
3.1.2 Internal RAM Area .....................................................................................................43
3.1.3 Special Function Register (SFR) Area .....................................................................43
3.1.4 External SFR Area ......................................................................................................43
3.1.5 External Memory Space............................................................................................ 43
3.1.6 External Extension Data Memory Space ................................................................43
3.2 REGISTERS........................................................................................................................... 45
3.2.1 Program Counter (PC) ...............................................................................................45
3.2.2 Program Status Word (PSW).................................................................................... 45
3.2.3 Stack Pointer (SP) ......................................................................................................46
3.2.4 General-Purpose Registers .......................................................................................47
3.2.5 Special Function Registers (SFR)............................................................................. 50