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QorIQ eLBC Transfer Size

Question asked by Dania Lazo on Dec 28, 2015
Latest reply on Dec 28, 2015 by ufedor

P1020 QorIQ Integrated Processor Reference Manual, Rev. 6, 01/2013, Table 12-204 implies that with a “Word” Transfer Size and a “16-bit” Port Size, 32-bit data can be read from the 16-bit local bus, LAD[0-15].  It may also be implied that 32-bit data can be written to the 16-bit local bus, LAD[0-15].

 

The Port Size is set via the eLBC base registers.  However, other that the statement below, I have been unable to find a way to set the Transfer Size.  Please advise.

 

“The local bus always tries to transfer the maximum amount of data on all bus cycles”

 

Source: P1020 QorIQ Integrated Processor Reference Manual, Rev. 6, 01/2013, Section 12.5.3

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