18739245. GPIO DRIVER WITH LOW LATENCY (MEDIATEK INC.)
Contents
GPIO DRIVER WITH LOW LATENCY
Organization Name
Inventor(s)
Federico Agustin Altolaguirre of Hsinchu City (TW)
Yu-Shen Lin of Hsinchu City (TW)
GPIO DRIVER WITH LOW LATENCY
This abstract first appeared for US patent application 18739245 titled 'GPIO DRIVER WITH LOW LATENCY
Original Abstract Submitted
The present invention provides a GPIO driver including a control logic, a level shifter module and a post-driver. The control logic supplied by a first supply voltage is configured to receive an input signal to generate a first signal. The level shifter module is configured to receive the first signal to generate a second signal. The post-driver supplied by a second supply voltage is configured to receive the second signal to generate an output signal. When the first supply voltage is lower than the second supply voltage, the level shifter module performs a level-boosting operation to increase a voltage level of the first signal to generate the second signal; and when the first supply voltage is greater than the second supply voltage, the level shifter module operates as a buffer, and the voltage level of the second signal is the same as the voltage level of the first signal.
