Embedded Controller

The embedded controller (EC) is an important integral part in notebook and embedded system designs. The advanced EC solutions provided by Byosoft are mainly used in peripherals of an I/O control system, such as keyboards, mice, touch-control panels, and in accomplishing all kinds of complicated ACPI power managements. The embedded controller can scientifically control the system equipment’s power consumption, improve battery efficiency and increase its working hours. At the same time, it can help the system to minimize noise and improve its heat dispersion capacity.

1. Major Functions and Characteristics
2. Keyboard controller’s function: simulate an 8042 standard-based desktop keyboard controller，and support embedded matrix keyboards and PS/2 interfaces’ touch pad operation, and other input equipment’s scanning operation.
3. Power control: control the power-on sequence and the power consumption of system equipment during computer start-up.
4. Battery management: report the remaining battery power and service time, battery charge and discharge management, etc. Dynamically detects the battery’s active condition and sent the information back to the system, then according to the remaining battery power, the EC will intelligently control the battery’s charge and discharge state, as well as stop charging.
5. Temperature control: control the fan’s rotation speed according to the system temperature detection, ensuring the temperature within the safe limits.
6. Peripheral management: support peripherals that connect to ECs through SMBUS or GPIO.
7. ACPI embedded controller: support ACPI EC code.
8. System diagnostic function: support error alert function during the power-on process or real-time operations
9. Customer-oriented function: offer technical service for customers to develop EC function, enabling customer’s products to be more personalized and competitive.