SBAS495D June 2010 – August 2021 PCM9211
PRODUCTION DATA
The PCM9211 can only function as an I2C slave. A master can write to any PCM9211 registers using either single or multiple accesses. The master sends a PCM9211 slave address with a write bit, a register address, and the data. When undefined registers are accessed, the PCM9211 does not send an acknowledgment. Figure 7-31 illustrates the write operation. The register address and the write data are 8-bit, MSB-first format.
Transmitter | M | M | M | S | M | S | M | S | M | S | S | M | |
Data Type | St | slave address | W | ACK | reg address | ACK | write data 1 | ACK | write data 2 | ACK | ACK | Sp |
M: Master Device, S: Slave Device, St: Start Condition, W: Write, ACK: Acknowledge, Sp: Stop Condition |