Buttons and digital display driver chip debugging through, Chinese Remarks. Including CH452 true 2-wire interface with low pulse button interrupt, only two I/O pin compatible I2C/IIC timing two-wire, SCL/SDA, key interrupt generated by the SDA, connected to the microcontroller' s pulse/edge interrupt pin for frequencies below 24MHz of the MCS51, in order to save transmission time can be appropriate to reduce the delay between the SCL/SDA

CH452W2.C

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