Hi,everyone!
In P1021RM,table3-10 (page 127) has listed the QUICC Engine Multiplex pins.For example, CE_PA0 has alternative functon of LAD8,but in table 3-7(page 119),CPPARAx[SELn] has no option for LAD8.
1. That mean that,i can use LAD8 and QUICC sub-function simultaneously ?for e.g.
for CE_PA0 , I set CPPARAx[SELn] to 11,then PA0 used for UPC1_S_TxADDR[4]. Following a utopia interface opration,the CPU can initial a eLBC access through LAD8 without any change of CPPARAx[SELn] value?
2.What's the defferences of 'alternate function' and 'muliplex option'?
Thanks!
P1021 QE pins are muxed with non-QE signals. The selection between QE and non-QE function is performed via PMUXCR bits.
Please, read description of QE1 field in RM Section 20.5.7
>What's the defferences of 'alternate function' and 'muliplex option'
PMUXCR selects between QE and non-QE alternate functions.
CPPARAx provides further selection between QE options.
Do not not attach particular importance to the terms. They are interchangeable.
Have a great day,
Pavel
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