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DS90ub947双路输入及双路输出到DS90ub948并显示的疑问

Other Parts Discussed in Thread: DS90UB940-Q1, DS90UB948-Q1

Imx6  输出双路LVDS信号到DS90ub947,现在不知道如何配置寄存器,使得947双路输出。      设置完947    0x5B的双路输出寄存器位后,读取状态寄存器0x5a,显示状态的还是单路输出。

  • 0X5B读出来为0X5A, 那么bit1=1说明已经是 Dual FPD-Link III Transmitter mode.
    而bit 0读出来为零,自动检测FPDlink mode是因为当和deserializer 948连接时候,如果pixel clock满足dual link mode的话,会自动配置成dual link mode,因此bit 0读出来为0,或者还可以通过配置寄存器0X5B 的bit 1 force dual link mode :Dual Link mode may be automatically configured when connected to a DS90UB948-Q1/DS90UB940-Q1, if the video meets minimum frequency requirements. Dual Link mode may also be forced using the DUAL_CTL1 register.