SLOU553 May 2021 TAS6424E-Q1
The Hi-Z, Mute and Unmute buttons with the gray background controls all 4 channels at the same time. When Hi-Z is selected, all 4 channels are put in Hi-Z. The display for each channel in the channel control section will reflect these buttons selections.
The Mute Pin button is the GPIO pin controlling the mute function of the device.
The Standby button is the GPIO pin controlling the standby function of the device.
The Reset button is software reset. This will put the device back in default settings.