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Teilenummer | UPD78F9232 |
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Beschreibung | (UPD78F9232 / UPD78F9234) 8-Bit Single-Chip Microcontrollers | |
Hersteller | NEC | |
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Gesamt 30 Seiten Preliminary User’s Manual
78K0S/KB1+
8-Bit Single-Chip Microcontrollers
µPD78F9232
µPD78F9234
Document No. U17446EJ1V0UD00 (1st edition)
Date Published April 2005 NS CP(K)
©
Printed in Japan
2005
Free Datasheet http://www.datasheet4u.com/
INTRODUCTION
Target Readers
Purpose
Organization
How to Use This Manual
This manual is intended for user engineers who wish to understand the functions of
the 78K0S/KB1+ in order to design and develop its application systems and programs.
The target devices are the following subseries products.
• 78K0S/KB1+: µPD78F9232, 78F9234
This manual is intended to give users on understanding of the functions described in
the Organization below.
Two manuals are available for the 78K0S/KB1+: this manual and the Instruction
Manual (common to the 78K/0S Series).
78K0S/KB1+
User’s Manual
• Pin functions
• Internal block functions
• Interrupts
• Other internal peripheral functions
• Electrical specifications (target values)
78K/0S Series
Instructions
User’s Manual
• CPU function
• Instruction set
• Instruction description
It is assumed that the readers of this manual have general knowledge of electrical
engineering, logic circuits, and microcontrollers.
◊ To understand the overall functions of 78K0S/KB1+
→ Read this manual in the order of the CONTENTS.
◊ How to read register formats
→ For a bit number enclosed in a square, the bit name is defined as a reserved
word in the RA78K0S, and is defined as an sfr variable using the #pragma sfr
directive in the CC78K0S.
◊ To learn the detailed functions of a register whose register name is known
→ See APPENDIX C REGISTER INDEX.
◊ To learn the details of the instruction functions of the 78K/0S Series
→ Refer to 78K/0S Series Instructions User’s Manual (U11047E) separately
available.
◊ To learn the electrical specifications (target) of the 78K0S/KB1+
→ See CHAPTER 21 ELECTRICAL SPECIFICATIONS (TARGET VALUES).
6 Preliminary User’s Manual U17446EJ1V0UD
Free Datasheet http://www.datasheet4u.com/
6 Page 11.4.2 Asynchronous serial interface (UART) mode.............................................................................196
11.4.3 Dedicated baud rate generator ..................................................................................................210
CHAPTER 12 MULTIPLIER...................................................................................................................217
12.1 Multiplier Function ...................................................................................................................217
12.2 Multiplier Configuration...........................................................................................................217
12.3 Multiplier Control Register ......................................................................................................219
12.4 Multiplier Operation .................................................................................................................220
CHAPTER 13 INTERRUPT FUNCTIONS ............................................................................................221
13.1 Interrupt Function Types.........................................................................................................221
13.2 Interrupt Sources and Configuration .....................................................................................222
13.3 Interrupt Function Control Registers.....................................................................................224
13.4 Interrupt Servicing Operation .................................................................................................229
13.4.1 Maskable interrupt request acknowledgment operation.............................................................229
13.4.2 Multiple interrupt servicing .........................................................................................................232
13.4.3 Interrupt request pending...........................................................................................................233
CHAPTER 14 STANDBY FUNCTION ..................................................................................................234
14.1 Standby Function and Configuration.....................................................................................234
14.1.1 Standby function........................................................................................................................234
14.1.2 Registers used during standby ..................................................................................................236
14.2 Standby Function Operation...................................................................................................237
14.2.1 HALT mode ...............................................................................................................................237
14.2.2 STOP mode...............................................................................................................................240
CHAPTER 15 RESET FUNCTION .......................................................................................................244
15.1 Register for Confirming Reset Source...................................................................................251
CHAPTER 16 POWER-ON-CLEAR CIRCUIT .....................................................................................252
16.1 Functions of Power-on-Clear Circuit .....................................................................................252
16.2 Configuration of Power-on-Clear Circuit...............................................................................253
16.3 Operation of Power-on-Clear Circuit......................................................................................253
16.4 Cautions for Power-on-Clear Circuit......................................................................................254
CHAPTER 17 LOW-VOLTAGE DETECTOR .......................................................................................256
17.1 Functions of Low-Voltage Detector .......................................................................................256
17.2 Configuration of Low-Voltage Detector.................................................................................256
17.3 Registers Controlling Low-Voltage Detector ........................................................................257
17.4 Operation of Low-Voltage Detector........................................................................................259
17.5 Cautions for Low-Voltage Detector........................................................................................262
CHAPTER 18 OPTION BYTE................................................................................................................265
CHAPTER 19 FLASH MEMORY ..........................................................................................................268
19.1 Features ....................................................................................................................................268
19.2 Memory Configuration .............................................................................................................269
12 Preliminary User’s Manual U17446EJ1V0UD
Free Datasheet http://www.datasheet4u.com/
12 Page | ||
Seiten | Gesamt 30 Seiten | |
PDF Download | [ UPD78F9232 Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
UPD78F9232 | (UPD78F9232 / UPD78F9234) 8-Bit Single-Chip Microcontrollers | NEC |
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