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MCBSTR9: PFQBC (PREFETCH QUEUE) ENABLE IN STR91X.S
Information in this article applies to:
- MCBSTR9 Evaluation Boards
QUESTION
It appears that the Prefetch Queue is not enabled in the startup file STR91x.s. Is this correct and what do I need to change on the STR91x.S file?
ANSWER
Rev. D devices enable the Prefetch Queue by default. For earlier revisions, you may enable the Prefetch Queue (PFQ/BC) by changing the definition of SCU_SCR0_Val to the following in the STR91x.S file:
SCU_SCR0_Val EQU 0x00000197
Setting this value to 0x00000196 disables the Prefetch Queue.
MORE INFORMATION
- ST Reference Manual for STR91xF
Last Reviewed: Wednesday, November 15, 2006
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