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UPD784907のメーカーはNECです、この部品の機能は「16-BIT SINGLE-CHIP MICROCONTROLLER」です。 |
部品番号 | UPD784907 |
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部品説明 | 16-BIT SINGLE-CHIP MICROCONTROLLER | ||
メーカ | NEC | ||
ロゴ | |||
このページの下部にプレビューとUPD784907ダウンロード(pdfファイル)リンクがあります。 Total 70 pages
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD784907, 784908
16-BIT SINGLE-CHIP MICROCONTROLLER
The µPD784907 and µPD784908 are products of the µPD784908 Subseries in the 78K/IV Series. These products
contain various peripheral hardware such as IEBusTM controller, ROM, RAM, I/O ports, 8-bit resolution A/D, timers,
serial interface, and interrupt functions, as well as a high-speed, high-performance CPU.
In addition, the µPD78P4908 (one-time PROM product), which is used to evaluate the functions of mask ROM
versions, and development tools are also available.
Detailed function descriptions are provided in the following user's manuals. Be sure to read them before
designing.
µPD784908 Subseries User's Manual Hardware : U11787E
78K/IV Series User's Manual Instruction
: U10905E
FEATURES
• 78K/IV Series
• Minimum instruction execution time: 320 ns (at 6.29 MHz)
160 ns (at 12.58 MHz)
• Number of I/O ports: 80
• Timer/counters: 16-bit timer/counter × 3 units
16-bit timer × 1 unit
• Serial interface: 4 channels
UART/IOE (3-wire serial I/O): 2 channels
CSI (3-wire serial I/O):
2 channels
• PWM outputs: 2
• Standby function
HALT/STOP/IDLE mode
• Clock frequency division function
• Watchdog timer: 1 channel
• Clock output function
Selectable from fCLK, fCLK/2, fCLK/4, fCLK/8, or fCLK/16
• A/D converter: 8-bit resolution × 8 channels
• On-chip IEBus controller
• Watch timer
• Low-power consumption
• Supply voltage: VDD = 4.0 to 5.5 V
(Main clock: fXX = 12.58 MHz,
internal system clock = fXX,
fCYK = 79 ns)
VDD = 3.5 to 5.5 V
(Other than above, fCYK = 159 ns)
APPLICATIONS
Car audios, etc.
This document describes the µPD784908 unless otherwise specified.
The information in this document is subject to change without notice.
Document No. U11680EJ2V0DS00 (2nd edition)
Date Published February 1999 N CP(K)
Printed in Japan
The mark shows major revised points.
©
1996
1 Page µPD784907, 784908
78K/IV SERIES PRODUCT LINEUP
: Under mass production
: Under development
Standard models
µPD784026
Enhanced A/D,
16-bit timer,
and power
management
I2C bus supported
µPD784038Y
µPD784038
Enhanced internal memory capacity,
pin compatible with the µPD784026
Multi-master I2C bus supported
µPD784216Y
µPD784216
100 pins,
enhanced I/O and
internal memory capacity
µPD784054
Multi-master I2C bus supported
µPD784225Y
µPD784225
80 pins,
ROM correction added
Multi-master I2C bus supported
µPD784218Y
µPD784218
Enhanced internal memory capacity,
ROM correction added
ASSP models
µPD784955
For DC inverter control
µPD784908
On-chip IEBus
controller
µPD784915
For software servo control,
on-chip analog circuit
for VCR,
enhanced timer
µPD784046
On-chip 10-bit A/D
µPD784938
Enhanced functions of the µPD784908,
enhanced internal memory capacity,
ROM correction added
Multi-master I2C bus supported
µPD784928Y
µPD784928
Enhanced functions of the µPD784915
Data Sheet U11680EJ2V0DS00
3
3Pages µPD784907, 784908
CONTENTS
1. DIFFERENCES BETWEEN µPD784908 SUBSERIES PRODUCTS ....................................... 8
2. MAJOR DIFFERENCES BETWEEN µPD784908 AND µPD78098 SUBSERIES .................. 9
3. PIN CONFIGURATION (TOP VIEW) ......................................................................................... 10
4. SYSTEM CONFIGURATION EXAMPLE (AUTOMOTIVE CAR AUDIO (TUNER DECK)) ..... 12
5. BLOCK DIAGRAM ..................................................................................................................... 13
6. PIN FUNCTION ........................................................................................................................... 14
6.1 Port Pins ............................................................................................................................................ 14
6.2 Non-Port Pins ................................................................................................................................... 16
6.3 Pin I/O Circuits and Recommended Connections of Unused Pins .......................................... 18
7. CPU ARCHITECTURE ............................................................................................................... 22
7.1 Memory Space .................................................................................................................................. 22
7.2 CPU Registers .................................................................................................................................. 25
7.2.1 General-purpose registers ................................................................................................ 25
7.2.2 Control registers ................................................................................................................ 26
7.2.3 Special function registers (SFRs) .................................................................................... 27
8. PERIPHERAL HARDWARE FUNCTIONS ................................................................................ 33
8.1 Ports ................................................................................................................................................... 33
8.2 Clock Generator ............................................................................................................................... 35
8.3 Real-Time Output Port ..................................................................................................................... 38
8.4 Timers/Counters ............................................................................................................................... 39
8.5 Watch Timer ...................................................................................................................................... 41
8.6 PWM Output (PWM0, PWM1) .......................................................................................................... 42
8.7 A/D Converter ................................................................................................................................... 43
8.8 Serial Interface ................................................................................................................................. 44
8.8.1 Asynchronous serial interface/3-wire serial I/O (UART/IOE) ....................................... 45
8.8.2 Clocked serial interface (CSI) ........................................................................................... 47
8.9 Clock Output Function .................................................................................................................... 48
8.10 Edge Detection Function ................................................................................................................ 49
8.11 Watchdog Timer ............................................................................................................................... 49
8.12 Simplified IEBus Controller ............................................................................................................ 50
9. INTERRUPT FUNCTION ............................................................................................................ 53
9.1 Interrupt Source ............................................................................................................................... 53
9.2 Vectored Interrupt ............................................................................................................................ 55
9.3 Context Switching ............................................................................................................................ 56
9.4 Macro Service ................................................................................................................................... 56
9.5 Examples of Macro Service Applications .................................................................................... 57
6 Data Sheet U11680EJ2V0DS00
6 Page | |||
ページ | 合計 : 70 ページ | ||
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データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
UPD784907 | 16-BIT SINGLE-CHIP MICROCONTROLLER | NEC |
UPD784907GF | 16-BIT SINGLE-CHIP MICROCONTROLLER | NEC |
UPD784908 | 16-BIT SINGLE-CHIP MICROCONTROLLER | NEC |
UPD784908GF | 16-BIT SINGLE-CHIP MICROCONTROLLER | NEC |