UPD78361A Datasheet, PDF (8/88 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

µPD78361A, 78362A
TABLE OF CONTENTS
1. PIN FUNCTIONS ...................................................................................................................... 10
1.1 PORT PINS ..................................................................................................................................... 10
1.2 PINS OTHER THAN PORT PINS .................................................................................................. 11
1.3 PIN I/O CIRCUITS AND PROCESSING OF UNUSED PINS ....................................................... 12
2. CPU ARCHITECTURE ............................................................................................................. 14
2.1 MEMORY SPACE ........................................................................................................................... 14
2.2 DATA MEMORY ADDRESSING .................................................................................................... 16
2.3 PROCESSOR REGISTERS ........................................................................................................... 18
2.3.1 Control Registers ................................................................................................................. 18
2.3.2 General-Purpose Registers .................................................................................................. 19
2.3.3 Special Function Registers (SFR) ........................................................................................20
3. FUNCTIONAL BLOCKS ........................................................................................................... 26
3.1 EXECUTION UNIT (EXU) ............................................................................................................... 26
3.2 BUS CONTROL UNIT (BCU) ......................................................................................................... 26
3.3 ROM/RAM ....................................................................................................................................... 26
3.4 PORT FUNCTIONS ........................................................................................................................ 26
3.5 CLOCK GENERATOR CIRCUIT ................................................................................................... 28
3.6 REAL-TIME PULSE UNIT (RPU) .................................................................................................. 30
3.7 REAL-TIME OUTPUT PORT (RTP) .............................................................................................. 37
3.8 A/D CONVERTER .......................................................................................................................... 38
3.9 SERIAL INTERFACE ..................................................................................................................... 39
3.10 PWM UNIT ...................................................................................................................................... 41
3.11 WATCHDOG TIMER (WDT) .......................................................................................................... 42
4. INTERRUPT FUNCTIONS ....................................................................................................... 43
4.1 OUTLINE ......................................................................................................................................... 43
4.2 MACRO SERVICE .......................................................................................................................... 44
4.3 CONTEXT SWITCHING ................................................................................................................. 47
4.3.1 Context Switching Function by Interrupt Request ................................................................ 47
4.3.2 Context Switching Function by BRKCS Instruction .............................................................. 48
4.3.3 Restoration from Context Switching ..................................................................................... 48
5. STANDBY FUNCTIONS ...................................................................................................................... 49
6. RESET FUNCTION ................................................................................................................... 50
7. INSTRUCTION SET .................................................................................................................. 51
8. EXAMPLE OF SYSTEM CONFIGURATION ........................................................................... 65
9. ELECTRICAL SPECIFICATIONS ............................................................................................ 66
10. PACKAGE DRAWING .............................................................................................................. 75
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