pxammc man page on OpenBSD

pxammc man page on OpenBSD

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PXAMMC(4)	     OpenBSD Programmer's Manual (Zaurus)	     PXAMMC(4)

NAME
     pxammc - MMC/SD/SDIO controller

SYNOPSIS
     pxammc0 at pxaip?
     sdmmc* at pxammc?

DESCRIPTION
     The pxammc driver supports the MMC/SD/SDIO controller integrated in
     PXA255 and PXA27x processors.

     The sdmmc(4) subsystem performs SD/MMC transactions to communicate with
     whatever MMC/SD/SDIO devices are inserted into the card slot.

SEE ALSO
     intro(4), sdmmc(4)

HISTORY
     The pxammc driver first appeared in OpenBSD 4.2.

AUTHORS
     The pxammc driver was written by Uwe Stuehler <uwe@openbsd.org>.

CAVEATS
     To work around a problem stated in an errata for the PXA27x processor
     family, the driver limits the bus frequency to 9.75 MHz instead of the
     theoretically supported maximum frequency of 19.5 MHz.

OpenBSD 4.9			 May 31, 2007			   OpenBSD 4.9

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