Set/Get Maximum Write Length (SETMWL/GETMWL)

The Controller uses the Direct and Broadcast SETMWL CCC to set the maximum data write length for the Target, which is stored in the I3CxMWL register.

The Controller uses the Direct GETMWL CCC to read the maximum data write length from the Target. This CCC transmits the I3CxMWL register from the Target with the Most Significant bit first.

The frame format for Direct SETMWL/GETMWL CCC is shown in Figure 1, whereas the frame format for the Broadcast SETMWL is shown in Figure 2.

Important:
  1. 1.The minimum I3CxMWL Maximum Write Length value the Controller can set is 8.
  2. 2.The Maximum Write Length does not affect the data write lengths of Broadcast CCCs.
Figure 1. Direct SETMWL/GETMWL Frame Format
Figure 2. Broadcast SETMWL Frame Format