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- Newsgroups: comp.periphs.scsi
- Path: sparky!uunet!nntp.telebit.com!eric
- From: eric@telebit.com (Eric Smith)
- Subject: Re: You will be terminated!
- In-Reply-To: jhwhit01@ulkyvx.louisville.edu's message of 21 Jan 93 11:04:35 GMT
- Message-ID: <ERIC.93Jan21064527@iceland.telebit.com>
- X-Disclaimer: Everything I write is false.
- Sender: news@telebit.com
- Nntp-Posting-Host: iceland
- Organization: Telebit Corporation
- References: <1993Jan21.070435.1@ulkyvx.louisville.edu>
- Date: Thu, 21 Jan 1993 14:45:27 GMT
- Lines: 26
-
- >>On 21 Jan 93 11:04:35 GMT, jhwhit01@ulkyvx.louisville.edu said:
- > I have been told that the Zilog 53C80 and the AMD 53C94F have "glitch eater"
- > circuits built-in. Do SCSI host adaptors that use one or the other of these
- > chips require onboard termination?
-
- They require the same kind of termination as any other SCSI chip. If the
- host adapter is at one end of the bus, then it should be terminated. There
- should always be a terminator at each end of the bus, and none in the middle.
- I wish Apple would get their act together on this.
-
- > Is the "glitch eater" there to solve most
- > termination problems or to provide termination?
-
- The "glitch eater" might solve some problems with poor quality SCSI cabling,
- but you still will need proper termination.
-
- > Does any SCSI chip have
- > internal termination?
-
- No SCSI controller chip that I've heard of has internal termination, and it
- would probably be a bad idea for them to do so.
-
- There do exist active SCSI terminator chips, but they are only terminators,
- not controllers. With luck the drive and host adapter manufacturers will
- start using these rather than three resistor networks which get removed and
- lost.
-