NEC PD78052 User manual

µ PD78054, 78054Y SUBSERIES
8-BIT SINGLE-CHIP MICROCONTROLLERS
µ PD78052 µ PD78052Y
µ PD78053 µ PD78053Y
µ PD78054 µ PD78054Y
µ PD78P054 µ PD78055Y
µ PD78055 µ PD78056Y
µ PD78056 µ PD78058Y
µ PD78058 µ PD78P058Y
µ PD78P058
µ PD78052(A)
µ PD78053(A)
µ PD78054(A)
Document No. U11747EJ5V0UM00 (5th edition)
Date Published April 1998 N CP (K)
1992
User’s Manual
Printed in Japan
©

2
[MEMO]

3
NOTES FOR CMOS DEVICES
1 PRECAUTION AGAINST ESD FOR SEMICONDUCTORS
Note:
Strong electric field, when exposed to a MOS device, can cause destruction of the gate oxide and
ultimatelydegradethedevice operation. Stepsmust betaken tostop generationof staticelectricity
as much as possible, and quickly dissipate it once, when it has occurred. Environmental control
must be adequate. When it is dry, humidifier should be used. It is recommended to avoid using
insulatorsthateasilybuildstaticelectricity. Semiconductordevicesmustbestoredandtransported
in an anti-static container, static shielding bag or conductive material. All test and measurement
tools including work bench and floor should be grounded. The operator should be grounded using
wriststrap. Semiconductordevicesmustnotbetouchedwithbarehands. Similar precautionsneed
to be taken for PW boards with semiconductor devices on it.
2 HANDLING OF UNUSED INPUT PINS FOR CMOS
Note:
No connection for CMOS device inputs can be cause of malfunction. If no connection is provided
tothe inputpins,itispossible thatan internalinput levelmaybegenerateddue tonoise, etc.,hence
causingmalfunction. CMOSdevicesbehavedifferentlythanBipolarorNMOSdevices. Inputlevels
of CMOS devices must be fixed high or low by using a pull-up or pull-down circuitry. Each unused
pin should be connected to VDD or GND with a resistor, if it is considered to have a possibility of
being an output pin. All handling related to the unused pins must be judged device by device and
related specifications governing the devices.
3 STATUS BEFORE INITIALIZATION OF MOS DEVICES
Note:
Power-on does not necessarily define initial status of MOS device. Production process of MOS
does not define the initial operation status of the device. Immediately after the power source is
turned ON, the devices with reset function have not yet been initialized. Hence, power-on does
not guarantee out-pin levels, I/O settings or contents of registers. Device is not initialized until the
reset signal is received. Reset operation must be executed immediately after power-on for devices
having reset function.

4
FIP, EEPROM, IEBus, QTOP are trademarks of NEC Corporation.
MS-DOS, Windows, and Widows NT are either registered trademarks or trademarks of Microsoft
Corporation in the United States and/or other countries.
IBM DOS, PC/AT and PC DOS are trademarks of International Business Machines Corporation.
HP9000 Series 700 and HP-UX are trademarks of Hewlett-Packard Company.
SPARCstation is a trademark of SPARC International, Inc.
Sun OS is a trademark of Sun Microsystems, Inc.
Ethernet is a trademark of XEROX Corporation.
NEWS and NEWS-OS are trademarks of SONY Corporation.
OSF/Motif is a trademark of Open Software Foundation, Inc.
TRON is an abbreviation of The Realtime Operating system Nucleus.
ITRON is an abbreviation of Industrial TRON.
The export of these products from Japan is regulated by the Japanese government. The export of some or all of these
products may be prohibited without governmental license. To export or re-export some or all of these products from a
country other than Japan may also be prohibited without a license from that country. Please call an NEC sales
representative.
License not needed: µ PD78P054KK-T, 78P058KK-T, 78P058YKK-T
The customer must judge the need for license:
µ PD78052GC-×××-8BT, 78052GK-×××-BE9, 78052YGC-×××-8BT
µ PD78053GC-×××-8BT, 78053GK-×××-BE9, 78053YGC-×××-8BT
µ PD78054GC-×××-8BT, 78054GK-×××-BE9, 78054YGC-×××-8BT
µ PD78P054GC-3B9, 78P054GC-8BT, 78P054GK-BE9
µ PD78055GC-×××-8BT, 78055GK-×××-BE9, 78055YGC-×××-8BT
µ PD78056GC-×××-8BT, 78056GK-×××-BE9, 78056YGC-×××-8BT
µ PD78058GC-×××-8BT, 78058GK-×××-BE9, 78058YGC-×××-8BT
µ PD78P058GC-8BT, 78P058YGC-8BT
µ PD78052GC(A)-×××-3B9, 78053GC(A)-×××-3B9, 78054GC(A)-×××-3B9

5
The application circuits and their parameters are for reference only and are not intended for use in actual design-ins.
Purchase of NEC I2C components conveys a license under the Philips I2C Patent Rights to use these
components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined
by Philips.
The information in this document is subject to change without notice.
No part of this document may be copied or reproduced in any form or by any means without the prior written
consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in
this document.
NECCorporationdoesnotassumeanyliabilityforinfringementofpatents,copyrightsorotherintellectualproperty
rights of third parties by or arising from use of a device described herein or any other liability arising from use
ofsuchdevice. No license,either express,impliedor otherwise,isgranted underanypatents, copyrightsorother
intellectual property rights of NEC Corporation or others.
WhileNECCorporationhasbeen makingcontinuousefforttoenhancethe reliabilityofitssemiconductordevices,
the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or
property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety
measures in its design, such as redundancy, fire-containment, and anti-failure features.
NEC devices are classified into the following three quality grades:
“Standard”, “Special”, and “Specific”. The Specific quality grade applies only to devices developed based on a
customer designated “quality assurance program” for a specific application. The recommended applications of
adevicedepend on its qualitygrade, as indicated below. Customersmustcheck the quality gradeof each device
before using it in a particular application.
Standard: Computers, office equipment, communications equipment, test and measurement equipment,
audio and visual equipment, home electronic appliances, machine tools, personal electronic
equipment and industrial robots
Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster
systems, anti-crime systems, safety equipment and medical equipment (not specifically designed
for life support)
Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life
support systems or medical equipment for life support, etc.
The quality grade of NEC devices is “Standard” unless otherwise specified in NEC’s Data Sheets or Data Books.
If customers intend to use NEC devices for applications other than those specified for Standard quality grade,
they should contact an NEC sales representative in advance.
Anti-radioactive design is not implemented in this product.
M7 96.5

6
Regional Information
Some information contained in this document may vary from country to country. Before using any NEC
product in your application, pIease contact the NEC 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.
NEC Electronics Inc. (U.S.)
Santa Clara, California
Tel: [phone]
800-366-9782
Fax: [phone]
800-729-9288
NEC Electronics (Germany) GmbH
Duesseldorf, Germany
Tel: [phone]
Fax: [phone]
NEC Electronics (UK) Ltd.
Milton Keynes, UK
Tel: [phone]
Fax: [phone]
NEC Electronics Italiana s.r.1.
Milano, Italy
Tel: [phone]
Fax: [phone]
NEC Electronics (Germany) GmbH
Benelux Office
Eindhoven, The Netherlands
Tel: [phone]
Fax: [phone]
NEC Electronics (France) S.A.
Velizy-Villacoublay, France
Tel: [phone]
Fax: [phone]
NEC Electronics (France) S.A.
Spain Office
Madrid, Spain
Tel: [phone]
Fax: [phone]
NEC Electronics (Germany) GmbH
Scandinavia Office
Taeby, Sweden
Tel: [phone]
Fax: [phone]
NEC Electronics Hong Kong Ltd.
Hong Kong
Tel: [phone]
Fax: [phone]
NEC Electronics Hong Kong Ltd.
Seoul Branch
Seoul, Korea
Tel: [phone]
Fax: [phone]
NEC Electronics Singapore Pte. Ltd.
United Square, Singapore 1130
Tel: [phone]
Fax: [phone]
NEC Electronics Taiwan Ltd.
Taipei, Taiwan
Tel: [phone]
Fax: [phone]
NEC do Brasil S.A.
Cumbica-Guarulhos-SP, Brasil
Tel: [phone]
Fax: [phone]
J98. 2

7
Major Revisions in This Edition
Page Description
Throughout Addition of µ PD78052(A),78053(A), 78054(A) to the applicable types
Deletion of µ PD78P054Y from the applicable types
Deletion of the following package from the µ PD78052, 78053, 78054, 78055, 78056, 78058, 78P058, 78054Y
Subseries:
• 80-pin plastic QFP (14 ×14 mm, resin thickness 2.7 mm)
p. 233 Addition of Figure 9-10. Square-Wave Output Operation Timing
p. 238 Addition of Figure 9-13. Square-Wave Output Operation Timing
p. 296 Addition of Note to Figure 16-4. Serial Operating Mode Register 0 Format
p. 430, 435 Addition of (4) Synchronization control and (5) Automatic transmit/receive Interval time to 18.4.3 3-wire
serial I/O mode operation with automatic transmit/receive function
p. 439 Addition of precaution to 19.1 (3) 3-wire serial I/O mode (MSB-/LSB-first switchable)
p. 444 Change of Figure 19-3. Serial Operating Mode Register 2 Format
p. 446 Change of Table 19-2. Serial Interface Channel 2 Operating Mode Settings
p. 465 Correction of Figure 19-10. Receive Error Timing
p. 474 Addition of 19.4.4 Limitations when UART mode is used
p. 577, 578 Addition of APPENDIX A DIFFERENCES BETWEEN µ PD78054, 78054Y SUBSERIES AND µ PD78058F,
78058FY SUBSERIES
p. 579 to APPENDIX B DEVELOPMENT TOOL
592 Entire revision: Support for in-circuit emulator IE-78K0-NS
p. 593, 594 APPENDIX C EMBEDDED SOFTWARE
Entire revision: Deletion of fuzzy inference development support system
The mark shows major revised points.

8
[MEMO]

9
PREFACE
Readers This manual has been prepared for user engineers who want to understand the
functions of the µ PD78054 and 78054Y Subseries and design and develop its
application systems and programs.
The target products are the products of the following subseries.
•
µ PD78054 Subseries : µ PD78052, 78053, 78054, 78P054, 78055, 78056,
µ PD78058, 78P058, 78052(A), 78053(A), 78054(A)
• µ PD78054Y Subseries : µ PD78052Y, 78053Y, 78054Y, 78055Y, 78056Y,
µ PD78058Y, 78P058Y
Caution Of the above members, the following devices with the suffix KK-T should be
usedonlyforexperimentorfunctionevaluation,becausetheyarenotintended
for use in equipment that will be mass-produced and require high reliability.
µ PD78P054KK-T, 78P058KK-T, 78P058YKK-T
Purpose This manual is intended for users to understand the functions described in the
Organization below.
Organization The
µ PD78054, 78054Y Subseries manual is separated into two parts: this manual
and the instruction edition (common to the 78K/0 Series).
µ PD78054, 78054Y 78K/0 Series
Subseries User’s Manual
User’s Manual Instruction
(This manual)
Pin functions CPU functions
Internal block functions Instruction set
Interrupt Explanation of each instruction
Other on-chip peripheral functions

10
How to Read This Manual Beforereading thismanual, youshould havegeneralknowledgeofelectric andlogic
circuits and microcontrollers.
For users who use this document as the manual for the µ PD78052(A), 78053(A),
and 78054(A):
→The only differences between the
µ PD78052, 78053, and 78054 and the
µ PD78052(A),78053(A), 78054(A)are the qualitygrades andpackages. (refer
to1.9DifferencesbetweenStandardQualityGradeProductsand(A)Products).
For the (A) products, read the part numbers in the following manner.
µ PD78052 → µ PD78052(A)
µ PD78053 → µ PD78053(A)
µ PD78054 → µ PD78054(A)
When you want to understand the functions in general:
→Read this manual in the order of the contents.
To know the µ PD78054 and 78054Y Subseries instruction function in detail:
→Refer to the 78K/0 Series User's Manual: Instructions (U12326E)
How to interpret the register format:
→
For the circled bit number, the bit name is defined as a reserved word in
RA78K/ 0, and in CC78K/0, already defined in the header file named sfrbit.h.
To learn the function of a register whose register name is known:
→Refer to Appendix D Register Index.
To know the electrical specifications of the µ PD78054 and 78054Y Subseries:
→Refer to separately available Data Sheet.
To know application examples of the functions provided in the µ PD78054 and
78054Y Subseries:
→Refer to Application Note separately provided.
Caution The application examples in this manual are created for “Standard” quality
grade products for general electric equipment. When using the application
examples in this manual for purposes which require “Special” quality grades,
thoroughly examine the quality grade of each part and circuit actually used.