ELAN Home Systems EM78P459 IOCC0 Open-Drain Control Register, IOCD0 Pull-high Control Register

Models: EM78P458 EM78P459AM EM78P458AM EM78P459AK EM78P459 EM78P458AP

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EM78P458/459

OTP ROM

Bit 4 (/PD4) Control bit is used to enable the pull-down of the P64 pin.

Bit 5 (/PD5) Control bit is used to enable the pull-down of the P65 pin.

Bit 6 (/PD6) Control bit is used to enable the pull-down of the P66 pin.

Bit 7 (/PD7) Control bit is used to enable the pull-down of the P67 pin.

• IOCB0 register is both readable and writable.

7. IOCC0 (Open-Drain Control Register)

7

6

5

4

3

2

1

0

/OD7

/OD6

/OD5

/OD4

/OD3

/OD2

/OD1

/OD0

Bit 0 (OD0) Control bit used to enable the open-drain of the P64 pin. 0: Enable open-drain output

1: Disable open-drain output

Bit 1 (OD1) Control bit is used to enable the open-drain of the P65 pin.

Bit 2 (OD2) Control bit is used to enable the open-drain of the P66 pin.

Bit 3 (OD3) Control bit is used to enable the open-drain of the P67 pin.

Bit 4 (OD4) Control bit is used to enable the open-drain of the P51 pin.

Bit 5 (OD5) Control bit is used to enable the open-drain of the P52 pin.

Bit 6 (OD6) Control bit is used to enable the open-drain of the P54 pin.

Bit 7 (OD7) Control bit is used to enable the open-drain of the P57 pin.

• IOCC0 register is both readable and writable.

8. IOCD0 (Pull-high Control Register)

 

7

6

5

 

4

3

2

1

 

0

 

 

/PH7

/PH6

/PH5

 

-

/PH3

/PH2

/PH1

 

/PH0

 

 

Bit 0 (/PH0) Control bit is used to enable the pull-high of the P60 pin.

 

 

 

 

 

0: Enable internal pull-high;

 

 

 

 

 

 

 

 

1: Disable internal pull-high.

 

 

 

 

 

 

 

 

Bit 1 (/PH1) Control bit is used to enable the pull-high of the P61 pin.

 

 

 

 

 

Bit 2 (/PH2) Control bit is used to enable the pull-high of the P62 pin.

 

 

 

 

 

Bit 3 (/PH3) Control bit is used to enable the pull-high of the P63 pin.

 

 

 

 

 

Bit 4 Not used.

 

 

 

 

 

 

 

 

 

 

Bit 5 (/PH5) Control bit is used to enable the pull-high of the P53 pin.

 

 

 

 

 

Bit 6 (/PH6) Control bit is used to enable the pull-high of the P55 pin.

 

 

 

 

 

Bit 7 (/PH7) Control bit is used to enable the pull-high of the P56 pin.

 

 

 

 

 

• IOCD0 register is both readable and writable.

 

 

 

 

 

 

 

 

 

 

 

 

 

This specification is subject to change without prior notice.

17

 

 

 

07.01.2003 (V1.3)

 

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ELAN Home Systems EM78P459AK, EM78P459AM, EM78P458AM IOCC0 Open-Drain Control Register, IOCD0 Pull-high Control Register

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.