Xref: utzoo rec.ham-radio.packet:3996 sci.electronics:12691
Path: utzoo!attcan!uunet!wang!tegra!vail
From: vail@tegra.COM (Johnathan Vail)
Newsgroups: rec.ham-radio.packet,sci.electronics
Subject: Re: SCSI Support For NET
Message-ID: <1092@atlas.tegra.COM>
Date: 2 Jul 90 13:43:01 GMT
References: <900626.11274458.050159@CU.CP6> <31177@cup.portal.com>
Organization: Tegra-Varityper, Inc., Billerica, MA
Lines: 25
In-reply-to: John_A_Pham@cup.portal.com's message of 26 Jun 90 22:03:24 GMT


In article <31177@cup.portal.com> John_A_Pham@cup.portal.com writes:

   I'm planning to build a SCSI card for my computer, and since everyone is 
   talking SCSI, perhaps someone would enlight me on selecting the right
   SCSI chip to use.  I have Fujitsu MB87030, National Semi 5380 and
   8490 spec sheets but I wonder which to use.  I know that the 8490 and MB87030
   can handle to up 4Mbytes/sec transfer, but which chip is easier to program
   and which is easier to interface to differential SCSI bus. 

I am involved with using the Am33C93 SCSI bus interface chip.  It is a
newer design and seems to be very complete and easy to use.
Internally it is an 8 bit micro.  It supports DMA and has regular bus
driver built in.  Works both target and host mode and will run up to 5
Mb/s.

If you are starting a fresh design check this one out before deciding.
The spec sheet I have is AMD, I don't know who else makes it.

"Like a clock, they sent, through, a washing machine:
 come around, make it soon, so alone." -- Syd Barrett
 _____
|     | Johnathan Vail | n1dxg@tegra.com
|Tegra| (508) 663-7435 | N1DXG@448.625-(WorldNet)
 -----  jv@n1dxg.ampr.org {...sun!sunne ..uunet}!tegra!vail