NEC PD78214 - Manual (Page 12)

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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
µPD78210 AND µPD78213 .............................................20
1.8 DIFFERENCES BETWEEN THE
µPD78214 SUB-SERIES AND µPD78218A SUB-SERIES ......21
1.9 DIFFERENCES BETWEEN THE
µPD78212 AND µPD78212(A) ........................................22
1.10 DIFFERENCES BETWEEN THE µPD78213 AND µPD78214, AND THE µPD78213(A)
AND
µPD78214(A) ................................................................................................................22
1.11 DIFFERENCES BETWEEN THE
µPD78P214 AND µPD78P214(A) ....................................22
1.12 DIFFERENCES BETWEEN THE
µPD78212, µPD78213, µPD78214, AND µPD78P214 ...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