UPD784936A View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD784936A

16-BIT SINGLE-CHIP MICROCONTROLLERS

NEC => Renesas Technology 

µPD784935A,784936A,784937A,784938A

CONTENTS

1. DIFFERENCES BETWEEN PRODUCTS IN µPD784938A SUBSERIES .............................. 8

2. MAJOR DIFFERENCES BETWEEN µPD784908, µPD784038, AND µPD78098

SUBSERIES .................................................................................................................................... 9

3. PIN CONFIGURATION (Top View) .............................................................................................. 10

4. SYSTEM CONFIGURATION EXAMPLE (car audio system (tuner and deck)) .................... 12

5. BLOCK DIAGRAM ......................................................................................................................... 13

6. PIN FUNCTIONS ............................................................................................................................ 14

6.1 Port Pins ................................................................................................................................. 14

6.2 Non-Port Pins ........................................................................................................................ 16

6.3 Pin I/O Circuits and Recommended Connection of Unused Pins.................................. 18

7. CPU ARCHITECTURE ................................................................................................................... 22

7.1 Memory Space ....................................................................................................................... 22

7.2 CPU Registers ....................................................................................................................... 27

7.2.1 General-purpose registers .......................................................................................................... 27

7.2.2 Control registers .......................................................................................................................... 28

7.2.3 Special function registers (SFRs) ............................................................................................... 29

8. PERIPHERAL HARDWARE FUNCTIONS ................................................................................... 34

8.1 Ports ........................................................................................................................................ 34

8.2 Clock Generator .................................................................................................................... 36

8.3 Real-Time Output Port .......................................................................................................... 39

8.4 Timers/Counters .................................................................................................................... 40

8.5 Watch Timer ........................................................................................................................... 42

8.6 PWM Output (PWM0, PWM11) ............................................................................................ 43

8.7 A/D Converter ........................................................................................................................ 44

8.8 Serial Interface ...................................................................................................................... 45

8.8.1 Asynchronous serial interface/3-wire serial I/O (UART/IOE) .................................................... 46

8.8.2 Clocked serial interface (CSI) ..................................................................................................... 48

8.9 Clock Output Function ......................................................................................................... 49

8.10 Edge Detection Function ..................................................................................................... 50

8.11 Watchdog Timer ..................................................................................................................... 50

8.12 Simplified IEBus Controller ................................................................................................. 51

9. INTERRUPT FUNCTION ............................................................................................................... 54

9.1 Interrupt Sources .................................................................................................................. 54

9.2 Vectored Interrupt ................................................................................................................. 56

9.3 Context Switching ................................................................................................................. 57

9.4 Macro Service ........................................................................................................................ 57

9.5 Application Examples of Macro Service ............................................................................ 58

6

Data Sheet U13572EJ2V0DS

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