It is unclear which functions are multiplexed with PRU1_R31[18-23], and the corresponding pins.
For example, as regards PRU1_R31[18], in the datasheets
OMAP-L138 Low-Power Applications Processor (Rev. A)
TMS320C6748 Fixed/Floating Point Digital Signal Processor (Rev. A)
(Figure 3-5 and Table 3-11),
PRU1_R31[18] is multiplexed with EMA_A[18]:
EMA_A[18] / MMCSD0_DAT[3] / PRU1_R30[26] / GP4[2] / PRU1_R31[18].
However in
OMAP-L138 Applications Processor System Reference Guide (Rev. D)
TMS320C6748 DSP System Reference Guide (Rev. D)
OMAP-L1x8, TMS320C6742/6/8 Pin Multiplexing Utility (Rev. B)
a different multiplexing is reported (see Table 11-33):
PRU1_R31[18]/EMA_A[10]/PRU1_R30[18]/GP5[10].
It seems that the relevant PINMUX registers are not affected, because the PRU1_R31 functions are selected by the value 0.
I can't probe these pins right now. So which information is true?
