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Número de pieza UPD780205A
Descripción (UPD78020x) 8-Bit Single-Chip Microcontrollers
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No Preview Available ! UPD780205A Hoja de datos, Descripción, Manual

User’s Manual
µPD780208 Subseries
8-Bit Single-Chip Microcontrollers
µPD780204
µPD780204A
µPD780205
µPD780205A
µPD780206
µPD780208
µPD78P0208
Document No. U11302EJ4V0UM00 (4th edition)
Date Published July 2003 N CP(K)
c
Printed in Japan

1 page




UPD780205A pdf
Regional Information
Some information contained in this document may vary from country to country. Before using any NEC
Electronics product in your application, pIease contact the NEC Electronics office in your country to
obtain a list of authorized representatives and distributors. They will verify:
Device availability
Ordering information
Product release schedule
Availability of related technical literature
Development environment specifications (for example, specifications for third-party tools and
components, host computers, power plugs, AC supply voltages, and so forth)
Network requirements
In addition, trademarks, registered trademarks, export restrictions, and other legal issues may also vary
from country to country.
[GLOBAL SUPPORT]
http://www.necel.com/en/support/support.html
NEC Electronics America, Inc. (U.S.)
Santa Clara, California
Tel: 408-588-6000
800-366-9782
NEC Electronics (Europe) GmbH
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Tel: 0211-65 03 01
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NEC Electronics Hong Kong Ltd.
Hong Kong
Tel: 2886-9318
NEC Electronics Hong Kong Ltd.
Seoul Branch
Seoul, Korea
Tel: 02-558-3737
NEC Electronics Shanghai, Ltd.
Shanghai, P.R. China
Tel: 021-6841-1138
NEC Electronics Taiwan Ltd.
Taipei, Taiwan
Tel: 02-2719-2377
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Tel: 6253-8311
United Kingdom Branch
Milton Keynes, UK
Tel: 01908-691-133
Users Manual U11302EJ4V0UM
J03.4
5

5 Page





UPD780205A arduino
3.1.4 Data memory addressing ........................................................................................................ 55
3.2 Processor Registers ........................................................................................................... 60
3.2.1 Control registers ...................................................................................................................... 60
3.2.2 General-purpose registers ...................................................................................................... 63
3.2.3 Special-function registers (SFRs) ........................................................................................... 64
3.3 Instruction Address Addressing ...................................................................................... 68
3.3.1 Relative addressing ................................................................................................................. 68
3.3.2 Immediate addressing ............................................................................................................. 69
3.3.3 Table indirect addressing ........................................................................................................ 70
3.3.4 Register addressing ................................................................................................................ 71
3.4 Operand Address Addressing .......................................................................................... 72
3.4.1 Implied addressing .................................................................................................................. 72
3.4.2 Register addressing ................................................................................................................ 73
3.4.3 Direct addressing .................................................................................................................... 74
3.4.4 Short direct addressing ........................................................................................................... 75
3.4.5 Special-function register (SFR) addressing ........................................................................... 76
3.4.6 Register indirect addressing ................................................................................................... 77
3.4.7 Based addressing .................................................................................................................... 78
3.4.8 Based indexed addressing ..................................................................................................... 79
3.4.9 Stack addressing ..................................................................................................................... 79
CHAPTER 4 PORT FUNCTIONS ......................................................................................................... 80
4.1 Port Functions ..................................................................................................................... 80
4.2 Port Configuration .............................................................................................................. 83
4.2.1 Port 0 ....................................................................................................................................... 83
4.2.2 Port 1 ....................................................................................................................................... 85
4.2.3 Port 2 ....................................................................................................................................... 86
4.2.4 Port 3 ....................................................................................................................................... 88
4.2.5 Port 7 ....................................................................................................................................... 89
4.2.6 Port 8 ....................................................................................................................................... 90
4.2.7 Port 9 ....................................................................................................................................... 91
4.2.8 Port 10 ..................................................................................................................................... 92
4.2.9 Port 11 ..................................................................................................................................... 93
4.2.10 Port 12 ..................................................................................................................................... 94
4.3 Port Function Control Registers ...................................................................................... 95
4.4 Port Function Operations .................................................................................................. 98
4.4.1 Writing to I/O port .................................................................................................................... 98
4.4.2 Reading from I/O port ............................................................................................................. 98
4.4.3 Operations on I/O port ............................................................................................................ 98
4.5 Selection of Mask Option .................................................................................................. 99
CHAPTER 5 CLOCK GENERATOR .................................................................................................... 100
5.1 Clock Generator Functions ............................................................................................... 100
5.2 Clock Generator Configuration......................................................................................... 100
5.3 Clock Generator Control Registers .................................................................................. 102
5.4 System Clock Oscillator .................................................................................................... 109
5.4.1 Main system clock oscillator ................................................................................................... 109
5.4.2 Subsystem clock oscillator ..................................................................................................... 110
User’s Manual U11302EJ4V0UM
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