UPD78322L-XXX Ver la hoja de datos (PDF) - NEC => Renesas Technology

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UPD78322L-XXX

16/8-BIT SINGLE-CHIP MICROCONTROLLER

NEC => Renesas Technology 

µPD78320, 78322

CONTENTS

1. LIST OF PIN FUNCTIONS ..................................................................................................................... 12

1.1 PORT PINS ...................................................................................................................................................... 12

1.2 NON-PORT PINS ............................................................................................................................................. 13

1.3 PIN INPUT/OUTPUT CIRCUITS AND RECOMMENDED CONNECTION OF UNUSED PINS ................... 15

2. CPU ARCHITECTURE ............................................................................................................................ 17

2.1 MEMORY SPACE ............................................................................................................................................ 17

2.2 PROCESSOR REGISTERS ............................................................................................................................ 20

2.2.1 Control Registers ........................................................................................................................... 21

2.2.2 General Registers ........................................................................................................................... 23

2.2.3 Special Function Registers (SFR) ................................................................................................ 25

2.3 DATA MEMORY ADDRESSING ..................................................................................................................... 30

2.3.1 General Register Addressing ....................................................................................................... 30

2.3.2 Short Direct Addressing ................................................................................................................ 30

2.3.3 Special Function Register (SFR) Addressing ............................................................................ 30

3. BLOCK FUNCTIONS .............................................................................................................................. 31

3.1 BUS CONTROL UNIT (BCU) .......................................................................................................................... 31

3.2 EXECUTION UNIT (EXU) ................................................................................................................................ 31

3.3 ROM/RAM ........................................................................................................................................................ 31

3.4 INTERRUPT CONTROLLER .......................................................................................................................... 31

3.5 PORT FUNCTIONS ......................................................................................................................................... 32

3.6 CLOCK GENERATOR .................................................................................................................................... 33

3.7 REALTIME PULSE UNIT (RPU) ..................................................................................................................... 35

3.7.1 Configuration .................................................................................................................................. 35

3.7.2 Realtime Output Function ............................................................................................................. 37

3.8 A/D CONVERTER ........................................................................................................................................... 38

3.9 SERIAL INTERFACE ...................................................................................................................................... 38

3.10 WATCHDOG TIMER ....................................................................................................................................... 41

4. INTERRUPT FUNCTIONS ...................................................................................................................... 42

4.1 OVERVIEW ...................................................................................................................................................... 42

4.2 MACRO SERVICE ........................................................................................................................................... 44

4.3 CONTEXT SWITCHING FUNCTION .............................................................................................................. 45

4.3.1 Context Switching Function by Interrupt Request .................................................................... 45

4.3.2 Context Switching Function by BRKCS Instruction ................................................................. 46

5. STANDBY FUNCTIONS ......................................................................................................................... 47

6. EXTERNAL DEVICE EXPANSION FUNCTION .................................................................................... 48

7. OPERATION AFTER RESET ................................................................................................................. 49

8. INSTRUCTION SET ................................................................................................................................ 50

9. ELECTRICAL SPECIFICATIONS .......................................................................................................... 64

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