SLAS763C August 2012 – October 2018 PCM5121 , PCM5122
PRODUCTION DATA.
A master can write to any PCM512x registers using single or multiple accesses. The master sends a PCM512x slave address with a write bit, a register address with auto-increment bit, and the data. If auto-increment is enabled, the address is that of the starting register, followed by the data to be transferred. When the data is received properly, the index register is incremented by 1 automatically. When the index register reaches 0x7F, the next value is 0x0. Table 42 shows the write operation.
Transmitter | M | M | M | S | M | S | M | S | M | S | S | M | ||
Data Type | St | slave addr | W | ACK | inc | reg addr | ACK | write data 1 | ACK | write data 2 | ACK | ACK | Sp |
M = Master Device; S = Slave Device; St = Start Condition; Sp = Stop Condition; W = Write; ACK = Acknowledge