Compact Flash (CF) media change detection with the CY4611 board. | Cypress Semiconductor
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Compact Flash (CF) media change detection with the CY4611 board.
Compact Flash (CF) media change is not always detected with the CY4611 board.why?
Many CompactFlash devices do not tie the CE1# signal directly to ground. Some of these devices will not pull CD1# strongly enough to pull the voltage divider below VIL. To address this issue change R18 to 2.2K. Cypress has made a BOM change on boards produced after May 2003 to address this issue.This issue is also fixed in CY4611B http://www.cypress.com/?rID=14406