2.2.6.4 10-bit Addressing with Address or Data Hold
Reception using 10-bit addressing with AHEN or DHEN set is the same as with 7-bit modes. The only difference is the need to update the SSPxADD register using the UA bit. All functionality, specifically when the bit is cleared and the SCL line is held low, is the same. Figure 2-11 can be used as a reference of a slave in 10-bit addressing with AHEN set.
Figure 2-12 shows a standard waveform for a slave transmitter in 10-bit Addressing mode.