Part Number: LP8864S-Q1
你好,我想问下下图中,读取Supply status的寄存器的具体方法,当背光的输出排线断开时,通过逻辑分析仪读取到的IIC波形是0x47 0x04,按照IIC先发高位(8到15),后发低位(0到7)的话,通过下图中故障类型可知,是同时报了短路和开路的故障,我想问下8864S的IIC发送逻辑,是按照先发高位再发低位的逻辑吗

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Part Number: LP8864S-Q1
你好,我想问下下图中,读取Supply status的寄存器的具体方法,当背光的输出排线断开时,通过逻辑分析仪读取到的IIC波形是0x47 0x04,按照IIC先发高位(8到15),后发低位(0到7)的话,通过下图中故障类型可知,是同时报了短路和开路的故障,我想问下8864S的IIC发送逻辑,是按照先发高位再发低位的逻辑吗

您好,
I2C读时序请参考数据手册Figure 6-22. I2C Read,先发送LSB,然后是MSB.

LP8864S-Q1 Automotive Display LED-backlight Driver with Four 150 mA Channels datasheet (Rev. B)