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EM78P154NP

8-bit microprocessor with OTP ROM

ELAN Microelectronics 

EM78P154N

8-Bit Microcontrollerwith OTP ROM

4 Function Description

OSCO

OSCI /RESET

WDT timer TCC /INT

Oscillator/Timing

Control

Prescaler

ROM

R2

IOCA

RAM

Interrupt

Controller

Instruction

Register

R4

R1(TCC)

Instruction

Decoder

IOC6

R6

I/O

PORT 6

DATA & CONTROL BUS

P60//INT

P61

P62

P63

P64

P65

P66

P67

IOC5

R5

I/O

PORT 5

Figure 4-1 Function Block Diagram

4.1 Operational Registers

4.1.1 R0 (Indirect Addressing Register)

Stack

ALU

R3

ACC

P50

P51

P52

P53

P54

P55

P56

4.1.2 R1 (Time Clock /Counter)

4

Product Specification (V1.0) 03.10.2006

(This specification is subject to change without further notice)

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