EM78P458/459

OTP ROM

Address

Name

Reset Type

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

 

 

 

 

 

 

 

 

 

 

 

 

 

Wake-up from Pin Changed

P

P

P

P

P

P

P

P

 

 

Bit Name

P57

P56

P55

P54

P53

P52

P51

P50

0x05

P5

Power-on

1

1

1

1

1

1

1

1

/RESET and WDT

1

1

1

1

1

1

1

1

 

 

 

 

Wake-up from Pin Changed

P

P

P

P

P

P

P

P

 

 

Bit Name

P67

P66

P65

P64

P63

P62

P61

P60

0x06

P6

Power-on

1

1

1

1

1

1

1

1

/RESET and WDT

1

1

1

1

1

1

1

1

 

 

 

 

Wake-up from Pin Changed

P

P

P

P

P

P

P

P

 

 

Bit Name

-

-

-

-

-

-

-

-

0x7~0x8

R7~R8

Power-on

U

U

U

U

U

U

U

U

/RESET and WDT

P

P

P

P

P

P

P

P

 

 

 

 

Wake-up from Pin Changed

P

P

P

P

P

P

P

P

 

 

Bit Name

X

X

IOCS

ADRUN

ADPD

ADAS2

ADAS1

ADAS0

0x9

R9

Power-on

0

0

0

0

0

0

0

0

(ADCON)

/RESET and WDT

0

0

0

0

0

0

0

0

 

 

 

Wake-up from Pin Changed

P

P

P

P

P

P

P

P

 

 

Bit Name

-

-

-

-

-

-

-

-

0xA

RA

Power-on

0

0

0

0

0

0

0

0

(ADDDATA)

/RESET and WDT

0

0

0

0

0

0

0

0

 

 

 

Wake-up from Pin Changed

P

P

P

P

P

P

P

P

 

 

Bit Name

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

0xB

RB

Power-on

0

0

0

0

0

0

0

0

(TMR1L)

/RESET and WDT

0

0

0

0

0

0

0

0

 

 

 

Wake-up from Pin Changed

P

P

P

P

P

P

P

P

 

 

Bit Name

X

X

X

X

X

X

Bit1

Bit0

0xC

RC

Power-on

0

0

0

0

0

0

0

0

(TMR1H)

/RESET and WDT

0

0

0

0

0

0

0

0

 

 

 

Wake-up from Pin Changed

0

0

0

0

0

0

P

P

 

 

Bit Name

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

0xD

RD

Power-on

0

0

0

0

0

0

0

0

(TMR2L)

/RESET and WDT

0

0

0

0

0

0

0

0

 

 

 

Wake-up from Pin Changed

P

P

P

P

P

P

P

P

 

 

Bit Name

X

X

X

X

X

X

Bit1

Bit0

0xE

RE

Power-on

0

0

0

0

0

0

0

0

(TMR2H)

/RESET and WDT

0

0

0

0

0

0

0

0

 

 

 

Wake-up from Pin Changed

0

0

0

0

0

0

P

P

 

 

Bit Name

X

CMPIF

PWM2IF

PWM1IF

ADIF

EXIF

ICIF

TCIF

0xF

RF

Power-on

0

0

0

0

0

0

0

0

(ISR)

/RESET and WDT

0

0

0

0

0

0

0

0

 

 

 

Wake-up from Pin Changed

0

P

P

P

P

P

P

P

 

 

Bit Name

-

-

-

-

-

-

-

-

0x10~0x3F

R10~R3F

Power-on

U

U

U

U

U

U

U

U

/RESET and WDT

P

P

P

P

P

P

P

P

 

 

 

 

Wake-up from Pin Changed

P

P

P

P

P

P

P

P

X: not used.

U: unknown or don’t care.

P: previous value before reset.

 

 

t:check Table 5

4.12Oscillator

1.Oscillator Modes

The EM78P458 and EM78P459 can be operated in four different oscillator modes, such as High XTAL oscillator mode (HXT), Low XTAL oscillator mode (LXT), External RC oscillator mode (ERC), and RC oscillator mode with Internal capacitor (IC). Users can select one of them by programming the

This specification is subject to change without prior notice.

45

07.01.2003 (V1.3)

Page 45
Image 45
ELAN Home Systems EM78P458AP, EM78P459AK, EM78P459AM, EM78P458AM manual Oscillator Modes

EM78P458, EM78P459AM, EM78P458AM, EM78P459AK, EM78P459 specifications

ELAN Home Systems offers a range of advanced microcontrollers, including the EM78P458AP, EM78P459, EM78P459AK, EM78P458AM, and EM78P459AM, that cater to various applications in the consumer electronics sector. These microcontrollers are known for their high efficiency, low power consumption, and robust performance, making them ideal for a wide range of smart home devices.

The EM78P458AP and EM78P459 models feature an 8-bit architecture, enabling efficient processing for applications requiring moderate complexity. They are equipped with a variety of I/O options, including GPIO, UART, and ADC, facilitating seamless integration with numerous peripherals. This flexibility allows developers to create customized solutions tailored to specific user needs.

One of the main highlights of these microcontrollers is their low-power operation, which is essential for battery-operated devices. This is particularly appealing in smart home contexts, where devices are expected to maintain long operational lifetimes without frequent battery replacements. The EM78P458AP and EM78P459 series prioritize energy efficiency, ensuring that they consume minimal power during both active and idle states.

In terms of memory, these microcontrollers also provide substantial ROM and RAM capacities, which enhance their ability to handle complex programs and data. The EM78P459AK variant adds additional features that empower developers with greater flexibility in terms of code storage and execution.

Another critical aspect of these microcontrollers is their built-in protection mechanisms, including voltage and thermal protection, which ensure safe operations under varying environmental conditions. This is vital for home automation systems, where device reliability is paramount to user satisfaction.

The EM78P458AM and EM78P459AM models further extend the family with added functionalities, such as enhanced communication capabilities featuring protocols like I2C and SPI. This facilitates robust inter-device communication, making it easier to integrate various smart home devices into a cohesive network.

Overall, ELAN Home Systems’ EM78P458 and EM78P459 series microcontrollers stand out for their versatile application potential, low power consumption, and reliability. With their innovative technologies and characteristics, they are well-suited for driving the next generation of smart home solutions, ensuring convenience, efficiency, and connectivity for users worldwide.