SLASF30A January 2022 – December 2024 TAA5212
PRODUCTION DATA
If the host device exits sleep mode by setting the SLEEP_ENZ bit to 1'b1, the device enters active mode. In active mode, I2C or SPI transactions can be done to configure and power-up the device for active operation. After entering active mode, wait at least 2ms before starting any I2C or SPI transactions in order to allow the device to complete the internal wake-up sequence.
Read and write operations to the programmable coefficient registers (Section 7.2), and to the channel configuration registers must be done 10ms after exiting sleep mode.
After configuring all other registers for the target application and system settings, configure the input channel enable registers, P0_R118 (CH_EN). Lastly, configure the device power-up register, P0_R120 (PWR_CFG). All the programmable coefficient values must be written before powering up the respective channel.
In active mode, the power-up and power-down status of various blocks is monitored by reading the read-only device status bits located in the P0_R121 (DEV_STS0) and P0_R122 (DEV_STS1) registers.