In the C6748 datasheet:
GP6[10] is the same pin as UPP_CHA_START, assignment changed by a bit in register PINMUX13
GP8[14] is the same pin as UPP_CHB_START, assignment changed by a bit in register PINMUX18
In the PINMUX Utility V1.0.1241.34:
GP6[10] is the same pin as UPP_CH1_START, assignment changed by a bit in register PINMUX13
GP8[14] is the same pin as UPP_CH0_START, assignment changed by a bit in register PINMUX18
Therefore I assume that:
When the PINMUX says channel 1 it means channel A
when the PINMUX says channel 0 it means channel B
Same on the other UPP control lines.
Somewhat confusing & if this is true perhaps the PINMUX Utility could be fixed? The potential for an error that stops a PCB working is high!
Also the newer version of the utility does not expand the pin table when the window is expanded vertically. It would be useful if it did since there are over 100 pin assignments, but presently only 10 can be seen at once. Also If the windows could be rearranged so that they take up less vertical space that would be useful too. The previous version of the utiltiy worked as requested!
Roger