SPRUJ55D September 2023 – July 2025 AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1
In this format (Figure 13-14), the first byte after a START condition is a data byte. The ACK bit is inserted after each byte, followed by another 8 bits of data. No address or data direction bit is sent. Therefore, the transmitter and receiver must both support the free data format. The direction of data transmission (transmit or receive) remains constant throughout the transfer.
To select the free data format, write a 1 to the free data format (FDF) bit of the ICMDR. The free data format is not supported in the digital loop back mode.
Figure 13-14 I2C Module in Free Data Format