Scan data control apparatus and electronic system having the same

    公开(公告)号:US10539616B2

    公开(公告)日:2020-01-21

    申请号:US15680109

    申请日:2017-08-17

    Abstract: A scan data control apparatus includes a trigger circuit, a scan sequencer, a shift register, and a transmitter. The trigger circuit is configured to receive a trigger signal, detect a malfunction of a system and output a scan mode start signal and a scan mode end signal. The scan sequencer is configured to output scan enable signals corresponding to a CPU and a master to the CPU and the master. The shift register is configured to receive scan data of the CPU and the master from the CPU and the master. The transmitter is configured to receive the scan data of the CPU and the master and output the scan data to a memory.

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