EM78P458/459

OTP ROM

Bit 5 (PWM2IE) PWM2IF interrupt enable bit.

0:disable PWM2 interrupt

1:enable PWM2 interrupt

Bit 6 (CMPIE) CMPIF interrupt enable bit.

0:disable CMPIF interrupt

1:enable CMPIF interrupt

Bit 7: Unimplemented, read as ‘0’.

Individual interrupt is enabled by setting its associated control bit in the IOCF0 to "1".

Global interrupt is enabled by the ENI instruction and is disabled by the DISI instruction. Refer to Fig. 11.

IOCF0 register is both readable and writable.

11. IOC51 ( PWMCON ):

7

6

5

4

3

2

1

0

PWM2E

PWM1E

T2EN

T1EN

T2P1

T2P0

T1P1

T1P0

Bit 7 (PWM2E): PWM2 enable bit

0 = PWM2 is off (default value), and its related pin carries out the P52 function. 1 = PWM2 is on, and its related pin will be set to output automatically.

Bit 6 (PWM1E): PWM1 enable bit

0 = PWM1 is off (default value), and its related pin carries out the P51 function; 1 = PWM1 is on, and its related pin will be set to output automatically.

Bit 5 (T2EN): TMR2 enable bit

0= TMR2 is off (default value).

1= TMR2 is on.

Bit 4 (T1EN): TMR1 enable bit

0= TMR1 is off (default value).

1= TMR1 is on.

Bit 3: Bit 2 ( T2P1:T2P0 ): TMR2 clock prescale option bits.

T2P1

T2P0

Prescale

0

0

1:2(Default)

0

1

1:8

1

0

1:32

1

1

1:64

This specification is subject to change without prior notice.

19

07.01.2003 (V1.3)

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ELAN Home Systems EM78P459AM, EM78P459AK, EM78P458AM, EM78P458AP manual IOC51 Pwmcon, PWM2E PWM1E T2EN T1EN

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.