V25 chip (by nec)

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#20224

From: James Williams
Date: Thu, 28 Jan 1993 01:30

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I am working on aproject using the V25 cpu, made by NEC. The v25 is 80186
compatible, with serial ports, dma, etc, all on chip. The project uses a single
 board computer (sbc) made by a firm called jenlogix, here in New Zealand.
The sbc is also called the V25. Anyway, I am having trouble using the Special
Function registers (SFR's), specifically those that control the dma. You are
supposed to be able to read/write to/from them just like memory. I can read them,
but not write to them. Anyway, has anyone here used the V25 (the chip, I
doubt if anyone has used jenlogix's sbc!). I can elaborate further if anyone
thinks they have any suggestions.
Thanks
JW

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Message-ID: <1993Jan28.013056.3178@ccu1.aukuni.ac.nz>

Path: arc1-ca.pugleaf.net!sparky!uunet!comp.vuw.ac.nz!waikato.ac.nz!aukuni.ac.nz!elejw

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Path: arc1-ca.pugleaf.net!sparky!uunet!comp.vuw.ac.nz!waikato.ac.nz!aukuni.ac.nz!elejw
Newsgroups: comp.sys.ibm.pc.hardware
Subject: V25 chip (by nec)
Message-ID: <1993Jan28.013056.3178@ccu1.aukuni.ac.nz>
From: elejw@ccu1.aukuni.ac.nz (James Williams)
Date: Thu, 28 Jan 1993 01:30:56 GMT
Organization: University of Auckland, New Zealand.
Keywords: v25 sbc dma
Lines: 12