EM78P153 데이터 시트보기 (PDF) - Elan Microelectronics Corp

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EM78P153

8-bit microprocessor designed and developed with low-power and high-speed CMOS technology

Elan Microelectronics Corp 

Contents

Contents

1 General Description ...................................................................................... 1

2 Features ......................................................................................................... 1

3 Pin Assignment.............................................................................................. 2

4 Pin Description .............................................................................................. 3

4.1 EM78P153S ....................................................................................................... 3

4.2 EM78P152S ....................................................................................................... 4

5 Functional Description.................................................................................. 5

5.1 Operational Registers......................................................................................... 5

5.1.1 R0 (Indirect Addressing Register).......................................................................5

5.1.2 R1 (Timer Clock /Counter)..................................................................................5

5.1.3 R2 (Program Counter and Stack) .......................................................................6

5.1.4 R3 (Status Register) ...........................................................................................7

5.1.5 R4 (RAM Select Register) ..................................................................................8

5.1.6 R5 ~ R6 (Port 5 ~ Port 6)....................................................................................8

5.1.7 RF (Interrupt Status Register).............................................................................8

5.1.8 R10 ~ R2F ..........................................................................................................8

5.2 Special Function Registers................................................................................. 9

5.2.1 A (Accumulator) ..................................................................................................9

5.2.2 CONT (Control Register) ....................................................................................9

5.2.3 IOC5 ~ IOC6 (I/O Port Control Register)..........................................................10

5.2.4 IOCB (Pull-down Control Register)...................................................................10

5.2.5 IOCC (Open-drain Control Register) ................................................................10

5.2.6 IOCD (Pull-high Control Register) ....................................................................11

5.2.7 IOCE (WDT Control Register) ..........................................................................11

5.2.8 IOCF (Interrupt Mask Register) ........................................................................12

5.3 TCC/WDT and Prescaler.................................................................................. 12

5.4 I/O Ports ........................................................................................................... 13

5.5 Reset and Wake-up.......................................................................................... 16

5.5.1 Reset ................................................................................................................16

5.5.2 Summary of Registers Initialized Values ..........................................................18

5.5.3 Status of RST, T, and P of the Status Register .................................................20

5.6 Interrupt ............................................................................................................ 21

5.7 Oscillator .......................................................................................................... 22

5.7.1 Oscillator Modes ...............................................................................................22

5.7.2 Crystal Oscillator/Ceramic Resonators (Crystal) ..............................................22

5.7.3 External RC Oscillator Mode ............................................................................24

5.7.4 Internal RC Oscillator Mode .............................................................................25

Product Specification (V1.8) 09.08.2009

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