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Sun, 12 Mar 2023 23:30:14 +0000 Date: Sun, 12 Mar 2023 23:30:11 +0000 (UTC) From: Fred van Kempen To: "craig@sbc-85.com" Message-ID: <2145979303.1598481.1678663811797@mail.yahoo.com> In-Reply-To: <159e01d95532$2de8af50$89ba0df0$@sbc-85.com> References: <795465721.1480428.1678597808696@mail.yahoo.com> <76DA0C16-49B7-4D49-B346-89D62ED12F63@sbc-85.com> <1273087909.1506672.1678620503916@mail.yahoo.com> <148b01d95518$d3ab8670$7b029350$@sbc-85.com> <1571369013.1568858.1678653174868@mail.yahoo.com> <14fb01d95522$af3c8b90$0db5a2b0$@sbc-85.com> <533761632.1579778.1678656589567@mail.yahoo.com> <159e01d95532$2de8af50$89ba0df0$@sbc-85.com> Subject: Re: interrupt assertion level MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_1598480_178459789.1678663811796" X-Mailer: WebService/1.1.21284 YMailNorrin Content-Length: 7499 X-Spam-Status: No, score=-0.2 X-Spam-Score: -1 X-Spam-Bar: / X-Spam-Flag: NO ------=_Part_1598480_178459789.1678663811796 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Will go over the new pin names. Also, another PCI connector part is TE's # 5145154-1, that's the one I used= . 1.=C2=A0 Look at the descriptions for pins 32 and 33.2.=C2=A0 HOLD/HLDA sho= uld be named BUSRQ/BUSACK, to be consistent with other "..RQ" names. Only 8= 085 names it HOLD/HLDA.3.=C2=A0 R94/95 no longer used (only Z80 card used i= t I think)4. "a.k.a. SID on 8085 systems" --> "8085:SID"=C2=A0 (just to kee= p it short)5. IRQ -> INTR (my bad- ack pin is INTA, so better use INTR inst= ead of IRQ) - also for INT5,6,7 6. "Exception: RST5.5" -> "8085:RST5.5" etc > 8085 specific vectored interrupts have been renamed /INT5, /INT6, /INT7.= =C2=A0 nomenclature only, no effect on existing cardsSee above - my bad, le= ts stick with INT(x) names, not IRQ, since we also have an INTA(ck) line.. > IO/M -> /MEMRQ done.=C2=A0 Nomenclature only, no effect on existing cards= Yes > /BUSRQ and /BUSACK killed.See above, rename HOLD/HLDA to these. > pin 96 was /ALE, changed name to /MCSYNCIt was M1, not ALE, I assume a ty= po. =20 Fred=C2=A0 From: Fred van Kempen =20 Sent: Sunday, March 12, 2023 2:30 PM To: craig@sbc-85.com Subject: Re: interrupt assertion level =C2=A0 Also, I think we should rename IOM# to MEMRQ# and have it 'countered' by th= e new IORQ# line.=C2=A0 Personally, I feel we should overlay some of the new = lines onto the 8085-specific RST* lines.=C2=A0 The new BUSRQ# and BUSACK# lines are th= e same as the 8085 HOLD and HLDA pins.. overlap. =C2=A0 =C2=A0 =20 ------=_Part_1598480_178459789.1678663811796 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Will go over the new pin nam= es.

Also, another PCI connector part is TE's # 5145154-1, tha= t's the one I used.

<= div dir=3D"ltr" data-setdir=3D"false">1.  Look at the descriptions for= pins 32 and 33.
2.  HOLD/= HLDA should be named BUSRQ/BUSACK, to be consistent with other "..RQ" names= . Only 8085 names it HOLD/HLDA.
3.  R94/95 no longer used (only Z80 card used it I think)
4. "a.k.a. SID on 8085 syste= ms" --> "8085:SID"  (just to keep it short)
5. IRQ -> INTR (my bad- ack pin is IN= TA, so better use INTR instead of IRQ) - also for INT5,6,7
6. "Exception: RST5.5<= /span>" -> "8085:RST5.5" etc

> 8085 specific vectored interrupts have been renamed /INT5, = /INT6, /INT7.  nomenclature only, no effect on existing cards
<= div>
See above - my bad, lets stick with INT(x) na= mes, not IRQ, since we also have an INTA(ck) line..

> IO/M -> /MEMRQ done.  Nomenclature only, no= effect on existing cards
Yes

> /BUSRQ and /BUSACK killed.
See above, rename HO= LD/HLDA to these.

> pin 96 was= /ALE, changed name to /MCSYNC
It was M1, not ALE, I assume a = typo.

Fred<= /div>
 

From:<= /b> Fred van Kempen <decwiz@yahoo.com>
Sent: Sunday, March 12, 2023 2:30 PM
To: craig@sbc-85.= com
Subject: Re: interrupt assertion level

 

Also, I think we should rename IOM# to MEMRQ#= and have it 'countered' by the

new IORQ# line.  Personally, I feel we should overlay some of t= he new lines onto

the 808= 5-specific RST* lines.  The new BUSRQ# and BUSACK# lines are the

same as the 8085 HOLD and HLD= A pins.. overlap.

 =

 

<= /div>
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