Date: Mon, 13 Nov 2000 18:25:52 -0800 From: Mike Smith <msmith@freebsd.org> To: Jin Guojun (DSD staff) <jin@george.lbl.gov> Cc: hardware@FreeBSD.ORG Subject: Re: motherboard with 32-bit/66MHz PCI bus Message-ID: <200011140225.eAE2PqF01479@mass.osd.bsdi.com> In-Reply-To: Your message of "Mon, 13 Nov 2000 17:39:42 PST." <200011140139.eAE1dgv13802@portnoy.lbl.gov>
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> > > Does any one has an idea what this product is? > > > It look like a processor (does not look like an ASIC) with network > > > capability embedded in. It has two 32-bit/66MHz PCI buses. > > > > > > http://www.chrysalis-its.com/products/luna_340.html > > > > Prettymuch what the page says it is; it's a core component for a crypto > > accelerator. The dual PCI bus part suggests that it's designed to be sat > > on a PCI card with a local private PCI bus as well as the host bus. > > Back to the original issue, to be able to use this kind of product, > it needs to have a motherboard that supports 32-bit/66MHz PCI bus, > doesn't it? (If I do not want to pay the price for 64-bit/66MHz PCI MB) No; you can put a 66-MHz 64-bit device in a 33MHz 32-bit motherboard (as long as the signalling voltages are correct). PCI is keyed to make getting it wrong mechanically impossible. However, if you've followed the responses to your other thread, you'll realise that 64-bit 66MHz motherboards are *cheap* now. -- ... every activity meets with opposition, everyone who acts has his rivals and unfortunately opponents also. But not because people want to be opponents, rather because the tasks and relationships force people to take different points of view. [Dr. Fritz Todt] V I C T O R Y N O T V E N G E A N C E To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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