SLAAEC6A October 2023 – January 2024
GPO1A has many output configuration options through the J44 header, but only one setting is allowed at a time. GPO1A can be configured for general-purpose output, a Serial Peripheral Interface (SPI), data for POCI, a PDM/Digital MIC clock, or a second audio serial interface (ASI2). For Audio Serial Interface, GPO1A can be configured as either the WCLK, BCLK, or DOUT in controller mode, as shown in Figure 3-21.