I can only say the watchdogs (description, register contents and addresses) are identical. I haven't compared the whole datasheet in detail. Any other areas you're particularly interested in? ...juerg On 6/11/07, Jeremy Jackson <jerj at coplanar.net> wrote: > To clarify, are you saying the watchdog is the same, or more than that > (whole chip) ? > > Regards, > > Jeremy > > On Mon, 2007-06-11 at 12:48 -0700, Juerg Haefliger wrote: > > Jeremy, > > > > The DME1737 is compatible to the SCH311X -> > > http://www.nuhorizons.com/FeaturedProducts/Volume1/SMSC/311x.pdf > > > > ...juerg > > > > > > On 4/8/07, Jeremy Jackson <jerj at coplanar.net> wrote: > > > Hi, > > > > > > Given the NDA nature it's tricky trying to support the watchdog and > > > serial port for LinuxBIOS. I think I can fly blind using parts of > > > publicly available datasheets, but it would save me time if I knew the > > > Logical Device #'s of the various superio modules, ie index 7 values > > > needed to address parport, serial 1/2, fdc, etc. config registers. > > > > > > Any chance someone can hint at what these might be, or a publicly > > > available datasheet that's closest: > > > > > > http://www.smsc.com/main/datasheet.html > > > > > > Ok so they all have serial port as Logical Device 4, so I've summarized > > > what the watchdog uses below. > > > > > > ISA bus types - Config index/data registers at 0x3F0 or 0x370 > > > > > > watchdog uses configuration space of logical device > > > > > > FDC37b727 Logical Device 8 - Aux I/O 0xF1 - 0xF4 watchdog * > > > FDC37b78x Logical Device 8 - Aux I/O 0xF1 - 0xF4 watchdog * > > > FDC37c665GT very different - no logical devices > > > FDC37c669 very different - no logical devices > > > FDC37c672 Logical Device 8 - Aux I/O 0xF1 - 0xF4 watchdog * no > > > WDT_TIME_OUT register > > > FDC37c78 FDC only > > > FDC37c93x Logical Device 8 - Aux I/O 0xF2 - 0xF4 watchdog * > > > FDC37M707 Logical Device 8 - Aux I/O 0xF1 - 0xF4 watchdog * > > > FDC37m817 Logical Device 8 - Aux I/O 0xF1 - 0xF4 watchdog * > > > FDC37n769 very different - no logical devices > > > > > > * can be configured to allow access to some watchdog registers while in > > > run mode > > > > > > LPC bus types - index/address registers 0x2e/0x2f or 0x4e/0x4f > > > > > > watchdog uses offset from decoded address set by logical device Primary > > > Base Address > > > > > > LPC47b272 Logical Device A - Runtime reg offset 0x52 - 0x55 watchdog > > > LPC47m10x no WDT > > > LPC47m112 no WDT > > > LPC47m172 no WDT > > > LPC47S45x Logical Device A - Runtime reg offset 0x52 - 0x55 watchdog > > > > > > I'm leaning towards DME1737 being the same as these LPC parts. > > > > > > -- > > > Jeremy Jackson > > > jerj at coplanar.net Email/Jabber/Google Talk/MSN > > > (519)489-4903 > > > Coplanar Networks > > > http://www.coplanar.net > > > > > > > >
