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DS90UB948-Q1: ds90ub948 GPIO8 输出高电平

Part Number: DS90UB948-Q1

TI Team

      你们好

      我们有个项目有使用DS90UB948,在测试的时候发现,当0x21寄存器设置为0x00时,13PIN(I2S_CLK/GPIO8_REG)会输出高电平?麻烦帮我们看下有哪些情况会导致GPIO8输出高电平,还有Functional mode 是哪种模式?是I2S工作模式吗?