| 摘要 |
A data access method for serial bus is provided. During a write/read cycle, the write/read cycle is divided into a plurality of transmitting intervals and a plurality of suspending intervals. In each of the transmitting intervals, a clock signals is transmitted on a clock pin and a data signals is transmitted on a data pin. In each of the suspending intervals, the clock signals stop being transmitted on the clock pin. In other words, the present invention uses an interrupted clock signal, such that an embedded controller can directly write a received data in a flash memory or directly output the data read from the flash memory, so as to avoid using any register. Therefore, the present invention can decrease the cost of the embedded controller and reduce the area of integrated circuit.
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