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參數資料
| 型號： | μPD784046(A) |
| 廠商： | NEC Corp. |
| 英文描述： | 16 Bit Single Chip Microcontrollers(16 位單片微控制器) |
| 中文描述： | 16位單片機微控制器（16位單片微控制器） |
| 文件頁數： | 5/90頁 |
| 文件大?。?/td> | 613K |
| 代理商： | ΜPD784046(A) |
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μ
PD784044(A), 784046(A)
5
CONTENTS
1.
DIFFERENCES BETWEEN
μ
PD784044(A) AND 784046(A) ............................................................7
2.
PIN CONFIGURATION (Top View) .....................................................................................................8
3.
SYSTEM CONFIGURATION EXAMPLE...........................................................................................10
4.
BLOCK DIAGRAM .............................................................................................................................11
5.
PIN FUNCTIONS ................................................................................................................................12
5.1
Port Pins .................................................................................................................................................... 12
5.2
Pins Other Than Port Pins ...................................................................................................................... 14
5.3
I/O Circuits of Pins and Processing of Unused Pins .......................................................................... 16
6.
CPU ARCHITECTURE .......................................................................................................................18
6.1
Memory Space .......................................................................................................................................... 18
6.2
CPU Registers........................................................................................................................................... 21
6.2.1
General-purpose registers ............................................................................................................. 21
6.2.2
Control registers ............................................................................................................................. 22
6.2.3
Special function registers (SFRs).................................................................................................. 23
7.
PERIPHERAL HARDWARE FUNCTIONS........................................................................................29
7.1
Ports ........................................................................................................................................................... 29
7.2
Clock Generation Circuit......................................................................................................................... 30
7.3
Real-Time Output Port ............................................................................................................................. 32
7.4
Timer/Counter ........................................................................................................................................... 32
7.5
A/D Converter ........................................................................................................................................... 35
7.6
Serial Interface.......................................................................................................................................... 36
7.6.1
Asynchronous serial interface/3-wire serial I/O (UART/IOE) ....................................................... 37
7.7
Edge Detection Circuit ............................................................................................................................ 39
7.8
Watchdog Timer........................................................................................................................................ 39
8.
INTERRUPT FUNCTION....................................................................................................................40
8.1
Interrupt Source ....................................................................................................................................... 40
8.2
Vectored Interrupt .................................................................................................................................... 42
8.3
Context Switching .................................................................................................................................... 43
8.4
Macro Service ........................................................................................................................................... 44
9.
LOCAL BUS INTERFACE .................................................................................................................47
9.1
Memory Expansion .................................................................................................................................. 48
9.2
Memory Space .......................................................................................................................................... 49
9.3
Programmable Wait.................................................................................................................................. 49
9.4
Bus Sizing Function................................................................................................................................. 49
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