SNLS579A April 2018 – November 2018 DP83TC811S-Q1
Test mode 4 evaluates the transmitter distortion. In test mode 4, the DP83TC811S-Q1 transmits the sequence of symbols generated by Equation 1:
The bit sequences, x0n and x1n, are generated from combinations of the scrambler in accordance to and :
Example streams of the 3-bit nibbles are shown in Table 4.
Test mode 4 is enabled by setting bits[15:13] = 0b100 in TEST_CTRL register.