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NetBSD 6.1.5 - man page for stpcide (netbsd section 4)

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STPCIDE(4)			   BSD Kernel Interfaces Manual 		       STPCIDE(4)

NAME
     stpcide -- STMicroelectronics STPC IDE disk controllers driver

SYNOPSIS
     stpcide* at pci? dev ? function ? flags 0x0000

DESCRIPTION
     The stpcide driver supports the STMicroelectronics STPC x86 SoC internal IDE controllers,
     and provides the interface with the hardware for the ata(4) driver.  The driver features DMA
     mode 2 and PIO mode 4 transfer speeds.

     The 0x0002 flag forces the stpcide driver to disable DMA on chipsets for which DMA would
     normally be enabled.  This can be used as a debugging aid, or to work around problems where
     the IDE controller is wired up to the system incorrectly.

SEE ALSO
     ata(4), atapi(4), intro(4), pci(4), pciide(4), wd(4), wdc(4)

BUGS
     The timings used for the DMA and PIO modes are for STPC Atlas and its siblings with their
     PCI clock configured at 33 MHz.  Other speeds including the STPC Vega Ultra-IDE controller
     will need adjustments.

BSD					 October 31, 2003				      BSD
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