In MPC8306, eLBC byte read access in 16bit-port with GPCM mode

[manuelojea]

We need to have a byte access to a VME bus connected through the eLBC using a 16-bit port using the GPCM.

As we read in the MPC8306RM, there are not read byte enable signals in GPCM mode.

Is it possible to use other signals for the read byte selection or we should use the UPM mode?

Thank you for your help.

Manuel Ojea

[alexander_yakov]

On read cycle GPCM reads whole 16-bits and ignores unnecessary byte.

On write cycle GPCM has individual write enable outputs - WE0 and WE1

There is no individual byte enable outputs in GPCM mode, you have to use UPM if you need byte enable outputs.

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