Early 8051 variants with dual dptr (AMD?)

From	Philipp Klaus Krause <pkk@spth.de>
Newsgroups	comp.arch.embedded
Subject	Early 8051 variants with dual dptr (AMD?)
Date	2016-06-29 09:49 +0200
Organization	solani.org
Message-ID	<nkvuhd$7tf$1@solani.org> (permalink)

Show all headers | View raw

Which were the first 8051 derivatives with multiple dptr? AFAIK the
Siemens 80C517 was the first with 8 dptr. I've read that AMD had an
early dual dptr vairant, but couldn't find a datasheet yet.
Which device was the first to use the following scheme:
DPL1 at 0x84, DPH1 at 0x85, DPS at 0x86.0?

Philipp

Back to comp.arch.embedded | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Early 8051 variants with dual dptr (AMD?) Philipp Klaus Krause <pkk@spth.de> - 2016-06-29 09:49 +0200
  Re: Early 8051 variants with dual dptr (AMD?) Philipp Klaus Krause <pkk@spth.de> - 2016-06-29 11:19 +0200
    Re: Early 8051 variants with dual dptr (AMD?) Martin Riddle <martin_ridd@verizon.net> - 2016-06-29 22:52 -0400
      Re: Early 8051 variants with dual dptr (AMD?) Martin Riddle <martin_ridd@verizon.net> - 2016-06-29 23:28 -0400
        Re: Early 8051 variants with dual dptr (AMD?) rickman <gnuarm@gmail.com> - 2016-06-30 00:15 -0400
          Re: Early 8051 variants with dual dptr (AMD?) Philipp Klaus Krause <pkk@spth.de> - 2016-06-30 09:37 +0200
          Re: Early 8051 variants with dual dptr (AMD?) Martin Riddle <martin_ridd@verizon.net> - 2016-06-30 08:26 -0400
          Re: Early 8051 variants with dual dptr (AMD?) Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2016-06-30 22:52 +0200
            Re: Early 8051 variants with dual dptr (AMD?) Philipp Klaus Krause <pkk@spth.de> - 2016-07-01 08:06 +0200
        Re: Early 8051 variants with dual dptr (AMD?) Philipp Klaus Krause <pkk@spth.de> - 2016-07-07 01:19 +0200
      Re: Early 8051 variants with dual dptr (AMD?) Philipp Klaus Krause <pkk@spth.de> - 2016-06-30 09:28 +0200

csiph-web