SDRAM initialisation and MCF5272

Hi,

According to the MCF5272 datasheet, and the schematic, the address line A22 and A23 of ColdFire are to be treated as SDBA0 and SDBA1 and connected to BA0 and BA1 of the SDRAM respectively. But when the register value is set according to the above, the SDRAM initialisation faces problem.

But when i set a value in such a way that the address lines A23 and A24

of ColdFire are connected to BA0 and BA1 of SDRAM then it works fine. Really strange !

How is this possible ? what & where could be the problem ?

Thx in advanse, Karthik Balaguru

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KBG
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