It appears that Table 3-12. PIN Action Bit Field (4 options) on page 39 of SPNU490 switched the columns C[4] and C[3]. My application includes writing to an MCMP instruction to change the pin action from Clear to Set and vice versa. When this wasn't working, I played around with the numbers each pin action actually produces. Here is what I found with four MCMP instructions, each with a different pin action.
6303.Incorrect HET Instruction Pin Action.pdf
Can someone form TI confirm this? I could not find anything in any errata about this issue.