UPD6132 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD6132

4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION

NEC => Renesas Technology 

µPD6132

TABLE OF CONTENTS

1. PIN FUNCTIONS ............................................................................................................................. 6

1.1 List of Pin Functions ............................................................................................................................. 6

1.2 INPUT/OUTPUT Circuits of Pins .......................................................................................................... 7

1.3 Dealing with Unused Pins .................................................................................................................... 8

2. INTERNAL CPU FUNCTIONS ........................................................................................................ 9

2.1 Program Counter (PC) .......................................................................................................................... 9

2.2 Stack Pointer (SP) ................................................................................................................................. 9

2.3 Address Stack Register (ASR (RF)) ..................................................................................................... 9

2.4 Program Memory (ROM) ....................................................................................................................... 10

2.5 Data Memory (RAM) .............................................................................................................................. 10

2.6 Data Pointer (DP) ................................................................................................................................... 11

2.7 Accumulator (A) .................................................................................................................................... 11

2.8 Arithmetic and Logic Unit (ALU) .......................................................................................................... 12

2.9 Flags ....................................................................................................................................................... 12

2.9.1 Status flag (F) ............................................................................................................................. 12

2.9.2 Carry flag (CY) ........................................................................................................................... 13

3. PORT REGISTERS (PX) ................................................................................................................. 14

3.1 KI/O Port (P0) ........................................................................................................................................... 15

3.2 KI Port/Special Ports (P1) ..................................................................................................................... 16

3.2.1 KI port (P11: bits 4-7 of P1) ......................................................................................................... 16

3.2.2 S0 port (bit 2 of P1) ..................................................................................................................... 16

3.2.3 S1/LED (bit 3 of P1) .................................................................................................................... 16

3.3 Control Register 0 (P3) ......................................................................................................................... 17

3.4 Control Register 1 (P4) ......................................................................................................................... 18

4. TIMER ............................................................................................................................................. 19

4.1 Timer Configuration .............................................................................................................................. 19

4.2 Timer Operation ..................................................................................................................................... 20

4.3 Carrier Output ........................................................................................................................................ 21

4.4 Software Control of Timer Output ....................................................................................................... 21

5. STANDBY FUNCTION .................................................................................................................... 22

5.1 Outline of Standby Function ................................................................................................................ 22

5.2 Standby Mode Setup and Release ....................................................................................................... 23

5.3 Standby Mode Release Timing ............................................................................................................ 24

6. RESET PIN ...................................................................................................................................... 26

7. POC CIRCUIT (MASK OPTION) .................................................................................................... 27

7.1 Functions of POC Circuit ...................................................................................................................... 28

7.2 Oscillation Check at Low Supply Voltage ........................................................................................... 28

8. SYSTEM CLOCK OSCILLATOR .................................................................................................... 29

4

Data Sheet U14332EJ1V0DS00

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