Hi Scott,
Section 10.2.4 of the data manual is incorrect. When connecting the 66AK2H12 in 4-pin 6-bit dual-phase mode, VCNTL[5:2] should be used as specified in Table 8-29. The figure below illustrates the connection between the 66AK2H12 and a UCD92xx power supply controller, including the level translation logic.
Regards, Bill
