Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!bellcore!texbell!merch!cpe!hal6000!trsvax!uhclem
From: uhclem@trsvax.UUCP
Newsgroups: comp.sys.tandy
Subject: Re: Tandy 3000HL Questions
Message-ID: <193300136@trsvax>
Date: 25 May 89 14:35:00 GMT
References: <1995@gmu90x.UUCP>
Lines: 24
Nf-ID: #R:gmu90x.UUCP:1995:trsvax:193300136:000:1060
Nf-From: trsvax.UUCP!uhclem    May 25 09:35:00 1989


<>
R1>The 3000HL is a true clone as far as the bus goes, the 16 bit slots are the
R1>same as an IBM-AT electrically. You should be able to use anybody else's
R1>cards and peripherals with little or no worry.  If they don't work in a
R1>3000HL, then they probably don't work in 90% of the IBM compatibles on the
R1>market.

The 3000HL does not have the second 8237 DMA controller, so you don't have
any 16-bit DMA channels (#4-#7).  DRQ4-7 and DACK4-7 on the bus are therefore
N/C.  These are rarely used, but it will prevent a device like the
Adaptec SCSI adapter from working in this machine.   Subsequently, the HL is
not a "true" AT compatible, instead it is more of a 286 XT.


<This information is provided by an individual and is not nor should be
 construed  as  being  provided  by  Radio  Shack or Tandy Corp.  Radio
 Shack/Tandy Corp has no obligation to support the information provided
 in  any way.>   
						
					"Thank you, Uh Clem."
					Frank Durda IV @ <trsvax!uhclem>
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