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UPD784031Y Datasheet(PDF) 4 Page - NEC

No. de Pieza. UPD784031Y
Descripción  16-/8-BIT SINGLE-CHIP MICROCONTROLLERS
Descarga  88 Pages
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Fabricante  NEC [NEC]
Página de inicio  http://www.nec.com/
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UPD784031Y Datasheet(HTML) 4 Page - NEC

 
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µPD784031Y
CONTENTS
1. DIFFERENCES AMONG MODELS IN
µPD784038Y SUBSERIES .................................................. 6
2. MAJOR DIFFERENCES FROM
µPD784026 SUBSERIES AND µPD78234 SUBSERIES.............. 7
3. PIN CONFIGURATION (Top View) ................................................................................................... 8
4. BLOCK DIAGRAM ............................................................................................................................ 10
5.
PIN FUNCTION ............................................................................................................................... 11
5.1
Port Pins ................................................................................................................................................ 11
5.2
Non-port Pins ........................................................................................................................................ 12
5.3
Types of Pin I/O Circuits and Connections for Unused Pins ............................................................ 14
6.
CPU ARCHITECTURE .................................................................................................................... 17
6.1
Memory Space ....................................................................................................................................... 17
6.2
CPU Registers ....................................................................................................................................... 19
6.2.1
General-purpose registers .......................................................................................................... 19
6.2.2
Control registers .......................................................................................................................... 20
6.2.3
Special function registers (SFRs) ............................................................................................... 21
7.
PERIPHERAL HARDWARE FUNCTIONS ..................................................................................... 26
7.1
Ports ....................................................................................................................................................... 26
7.2
Clock Generation Circuit ...................................................................................................................... 27
7.3
Real-time Output Port ........................................................................................................................... 29
7.4
Timer/Counter ........................................................................................................................................ 30
7.5
PWM Output (PWM0, PWM1) ................................................................................................................ 32
7.6
A/D Converter ........................................................................................................................................ 33
7.7
D/A Converter ........................................................................................................................................ 34
7.8
Serial Interface ...................................................................................................................................... 35
7.8.1
Asynchronous serial interface/3-wire serial I/O (UART/IOE) ...................................................... 36
7.8.2
Clocked serial interface (CSI) ..................................................................................................... 38
7.9
Edge Detection Function ...................................................................................................................... 39
7.10 Watchdog Timer .................................................................................................................................... 40
8.
INTERRUPT FUNCTION ................................................................................................................. 41
8.1
Interrupt Sources .................................................................................................................................. 41
8.2
Vectored Interrupt ................................................................................................................................. 43
8.3
Context Switching ................................................................................................................................. 44
8.4
Macro Service ........................................................................................................................................ 44
8.5
Application Example of Macro Service ............................................................................................... 45


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