Which chip is IDE controller in A1200/A600?
Rask Ingemann Lambertsen
Hi,
Can any of you tell me which chip in the A1200/A600 contains the
IDE controller? I'd also like to know the pinouts of that chip.
Does the chip also exist in the CD32?
Thanks in advance.
--
Regards,
/¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯\
| Rask Ingemann Lambertsen | E-mail: c94...@student.dtu.dk |
| Amiga GNU CC README maintainer | WWW: http://www.gbar.dtu.dk/~c948374/ |
| Try my finger-WWW gateway at http://www.bbar.dtu.dk/~c948374/f.cgi |
| Keyboard error: <Ctrl> and <Alt> are stuck - press <Del> to continue |
UNREGISTERED VERSION
>Hi,
> Thanks in advance.
>--
>Regards,
The chip is not in the cd32 and it is, well have to open up my 1200 to find
which chip it is since the ide header is connected to the Gayle, a ttl buffer,
a 8520, the budgie and 150 pin expansion slot among other things. the tech manual says just " ide stuff "
( thats commodore for you ) for parts list in the ide components ( GOD! this computer
is just one big multiplexer!!! )
Brendan Bhagan
Amiga 1200
50 Mhz 68030/68882
10 mb ram
540 mb hd
CD-rom
Zip drive
I work for IBM but use Amigas, Go figure
The Amiga lives
Bruce Abbott
>Hi,
> Can any of you tell me which chip in the A1200/A600 contains the
>IDE controller? I'd also like to know the pinouts of that chip.
>Does the chip also exist in the CD32?
> Thanks in advance.
>--
>Regards,
>/¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯\
>| Rask Ingemann Lambertsen | E-mail: c94...@student.dtu.dk |
>| Amiga GNU CC README maintainer | WWW: http://www.gbar.dtu.dk/~c948374/ |
>| Try my finger-WWW gateway at http://www.bbar.dtu.dk/~c948374/f.cgi |
>| Keyboard error: <Ctrl> and <Alt> are stuck - press <Del> to continue |
Gayle does the IDE control signals in the A1200 ( as well as some other
functions ). The pins applicable to the IDE port are as follows:-
pin 12 = /IDE_IRQ interrupt request from drive ( 4.7K pulldown )
13 = /IDE_CS(1) chip select for I/O port
14 = /IDE_CS(2) chip select for command registers
18 = /IOWR write control
19 = /IORD read control
81 = /WAIT wait state request from drive ( 10K pullup )
83 = /INT6 level 6 interrupt to CPU
84 = /INT2 level 2 interrupt to CPU
Data lines 23-31 and address lines 2-4 are connected directly from the CPU
to the IDE drive.
There is no equivalent chip in the CD32, because it doesn't support the IDE
interface ( Akiko does all the I/O that the CD32 needs ).
Designing a circuit that generates the required signals for a CD32 should
be fairly easy, the only tricky bit is the interrupt control register
( does anyone know how the IDE interrupts work? ).
--
Bruce Abbott Hastings, New Zealand. bhab...@inhb.co.nz
--
Rask Ingemann Lambertsen
> > Can any of you tell me which chip in the A1200/A600 contains the
> >IDE controller? I'd also like to know the pinouts of that chip.
> >Does the chip also exist in the CD32?
> > Thanks in advance.
> The chip is not in the cd32 and it is, well have to open up my 1200 to find
> which chip it is since the ide header is connected to the Gayle, a ttl buffer,
> a 8520, the budgie and 150 pin expansion slot among other things. the tech manual says just " ide stuff "
> ( thats commodore for you ) for parts list in the ide components ( GOD! this computer
> is just one big multiplexer!!! )
> Brendan Bhagan
I would still like to know which chip it is. It would also be useful to
know which chip the SX-1 and SX32 use to get an IDE interface.
Alan Redhouse
There isnt one. The Gayle GAL does the address decoding for all the
peripherals (including ROM, network adapter, both CIA's, real time clock,
flash rom, 2 IDE selects and all the card slot stuff)
The control lines for read, write wait & interupt are just the common
system ones and also handled by Gayle.
The rest just bangs straight onto the processor bus (which is why you
should never attempt to hang more than one IDE device on without a
buffered cable - available from us BTW ;) ).
All the clever stuff is done on the drive itself.
Cheers
Alan M Redhouse
Eyetech Group Ltd
The Old Bank, 12 West Green , Stokesley, N Yorks, TS9 5BB
Phone: +44 (0) 1642 713 185
FAX: +44 (0) 1642 713 634
Email: eye...@cix.compulink.co.uk
Chris Appleton
Hiya;
AR> The rest just bangs straight onto the processor bus (which is why you
AR> should never attempt to hang more than one IDE device on without a
AR> buffered cable - available from us BTW ;) ).
what are these buffered cables? Anything special, or just a wierd hack job
(like some of the proffesional VGA cables I've seen.....). I'd like some more
info on them, I'm looking at bunging an atapi drive on my internal IDE prot,
as well as my 260mb Seagate. And I have an aversion to frying processors....
Cheers
Chris
--
Chris Appleton : ch...@fuchal.demon.co.uk : Pillock on IRC
http://www.uea.ac.uk/~u9511237/people/chris.html
Running on Amiga - A1200T/030. It's cool.
Every morning is the dawn of a new error.
Frederick Heitkamp
In message <4n54r7$e...@news.uni-c.dk> - c94...@merete.mbar.dtu.dk (Rask Ingema
nn Lambertsen) writes:
:>
:>On 5 May 96 06:58:28 UTC UNREGISTERED VERSION (tr...@idirect.com) wrote:
:>> >Hi,
:>
:>> > Can any of you tell me which chip in the A1200/A600 contains the
:>> >IDE controller? I'd also like to know the pinouts of that chip.
:>> >Does the chip also exist in the CD32?
Also: Are there any concerns whatsoever about the address translation problems
like those found in PC land. i.e. If I plug a 1.6mb Fast-ATA drive into my
A4000 will it work OK? (I guess that statement implies two questions! :))
Thanks!
Fred Heitkamp
Rask Ingemann Lambertsen
On Wed, 15 May 1996 17:29:58 GMT Alan Redhouse (eye...@cix.compulink.co.uk) wrote:
> There isnt one. The Gayle GAL does the address decoding for all the
> peripherals (including ROM, network adapter, both CIA's, real time clock,
> flash rom, 2 IDE selects and all the card slot stuff)
> The control lines for read, write wait & interupt are just the common
> system ones and also handled by Gayle.
> The rest just bangs straight onto the processor bus (which is why you
> should never attempt to hang more than one IDE device on without a
> buffered cable - available from us BTW ;) ).
> All the clever stuff is done on the drive itself.
So, does the CD32 have a Gayle chip somewhere?
Dr. Peter Kittel
In article <4n54r7$e...@news.uni-c.dk> c94...@merete.mbar.dtu.dk (Rask Ingemann Lambertsen) writes:
>On 5 May 96 06:58:28 UTC UNREGISTERED VERSION (tr...@idirect.com) wrote:
>
>> > Can any of you tell me which chip in the A1200/A600 contains the
>> >IDE controller? I'd also like to know the pinouts of that chip.
>> >Does the chip also exist in the CD32?
>
>> which chip it is since the ide header is connected to the Gayle, a ttl buffer,
>> a 8520, the budgie and 150 pin expansion slot among other things. the tech manual says just " ide stuff "
>> ( thats commodore for you ) for parts list in the ide components ( GOD! this computer
>> is just one big multiplexer!!! )
>
>know which chip the SX-1 and SX32 use to get an IDE interface.
To say the same as the first guys to answer in different words:
In the A1200, it's a very small portion of the Gayle chip plus some
lines from other chips, and in the CD32, there's no IDE at all in
the configuration as shipped.
--
Best Regards, Dr. Peter Kittel // Visit http://www.amiga.de
Private Site in Frankfurt, Germany \X/ Email to: pet...@combo.ganesha.com
Juergen Rally Fischer
Rask Ingemann Lambertsen (c94...@merete.mbar.dtu.dk) wrote:
: > > Can any of you tell me which chip in the A1200/A600 contains the
: > >IDE controller? I'd also like to know the pinouts of that chip.
: > >Does the chip also exist in the CD32?
I also had problems when I read the question "fill in the name of your
hostadapter" in the seagate BBS ;)
: > a 8520, the budgie and 150 pin expansion slot among other things. the tech manual says just " ide stuff "
: > ( thats commodore for you ) for parts list in the ide components ( GOD! this computer
: > is just one big multiplexer!!! )
I believe (having no clue about IDE). I guess it's just some 32bit
path beeing available to cpu at some adress. I however wonder
why it only does about 1mb/sec. my hd could do above 5mb/sec,
the 020-14 could do ~9mb/sec with optimized software, ~4.5mb/sec
with a usual copy loop, anyway either the drive is really sh*t
or the ide interface...
I guess the scsi hds do dma ? this is not only interesting for
transfer speed (I'm happy with 1mb/sec, cost max 3s to fill
my entire mem ;) but for demos/games loading next part without
cpu load.
------------------------------------------------------------------------
fisc...@Informatik.TU-Muenchen.DE (Juergen "Rally" Fischer) =:)
Jean Kols
: Rask Ingemann Lambertsen (c94...@merete.mbar.dtu.dk) wrote:
: : > > Can any of you tell me which chip in the A1200/A600 contains the
: : > >IDE controller? I'd also like to know the pinouts of that chip.
: : > >Does the chip also exist in the CD32?
: : > a 8520, the budgie and 150 pin expansion slot among other things. the tech manual says just " ide stuff "
: : > ( thats commodore for you ) for parts list in the ide components ( GOD! this computer
: : > is just one big multiplexer!!! )
IDE stands for Integrated Drive Electronics; IDE was made as a low cost
drive with the controller built on to the drive (compared with ST-506).
So, in theory, you only need to have a few 16 bit I/O (or in the 680x0's
case, memory) ports to which the physical IDE header is attached. So, if
you're looking to put an IDE into a CD32, you need to find out what
adresses the ports are on, which lines correspond to data and control
respectively, and how they're latched. Assuming you're handy, you could
fix one up with a few 7420s, a 74138 or 154, and some 74245s or 373s.
It's much easier, however, to buy the new SX-32 with all of the other
goodies already included.
-Jean Klos
Alan L.M. Buxey
On 27 May 96 17:32:46 MEZ ,Dr. Peter Kittel posted the following:
: To say the same as the first guys to answer in different words:
: In the A1200, it's a very small portion of the Gayle chip plus some
: lines from other chips, and in the CD32, there's no IDE at all in
: the configuration as shipped.
what controls the CDROM drive then?
alan
--
- (c) Alan Postings Ltd - A division of Alans(tm) Corporate body(tm) :-)
Date: Mon Jun 3 15:47:01 BST 1996 Issue:01/00/00 NOT to be carried on M.S.N.!
- HEALTH WARNING: The InterNet can be addictive and cause a lack of real -
- social life. Use with care. Not to be taken more than four times daily. -
Alan L.M. Buxey
On 28 May 1996 13:07:30 GMT ,Juergen "Rally" Fischer posted the following:
: I believe (having no clue about IDE). I guess it's just some 32bit
: path beeing available to cpu at some adress. I however wonder
: why it only does about 1mb/sec. my hd could do above 5mb/sec,
: the 020-14 could do ~9mb/sec with optimized software, ~4.5mb/sec
: with a usual copy loop, anyway either the drive is really sh*t
: or the ide interface...
i dont know where you got your figures from, but i know that my 020
powered a1200 did about 1 MB/sec with my 1.35GB Samsung, and my 50MHz
030 does 1.6 -> so thats about the maximum speed of the basic IDE
controller.
: I guess the scsi hds do dma ? this is not only interesting for
: transfer speed (I'm happy with 1mb/sec, cost max 3s to fill
: my entire mem ;) but for demos/games loading next part without
: cpu load.
SCSI is indeed DMA, and it is indeed very fast (had a freind that could
read/write at about 5MB/s - his HD max was supposed to be about 8MB...my
A500 with GVP HD8II+ with 120MB SCSI was also very nice to
read/write...pity the A1200 didnt come with SCSI - BUT at least you can
attach a CHEAP CDROM with IDE...cheapest 4x SCSI's are still quite
pricey(!)
Alan
--
- (c) Alan Postings Ltd - A division of Alans(tm) Corporate body(tm) :-)
Date: Mon Jun 3 15:47:01 BST 1996 Issue:01/00/00 NOT to be carried on M.S.N.!
** Confidential! ** {begin 644 address.txt} [1mWork it out... [0m
{D:'1T<#HO+W=W=RYS=7-S97@N86,N=6LO57-E<G,O:V-C:3$*}{ end}Replies Appreciated :)
terry
> On 27 May 96 17:32:46 MEZ ,Dr. Peter Kittel posted the following:
>: To say the same as the first guys to answer in different words:
>: In the A1200, it's a very small portion of the Gayle chip plus some
>: lines from other chips, and in the CD32, there's no IDE at all in
>: the configuration as shipped.
> what controls the CDROM drive then?
> alan
> --
> - (c) Alan Postings Ltd - A division of Alans(tm) Corporate body(tm) :-)
> Date: Mon Jun 3 15:47:01 BST 1996 Issue:01/00/00 NOT to be carried on M.S.N.
> - HEALTH WARNING: The InterNet can be addictive and cause a lack of real -
> - social life. Use with care. Not to be taken more than four times daily. -
its got a scsi interface
--
--
\|/
(o o)
=====================oOO==(_)==OOo========================
: :::::::: (-: Email terry&pimple.demon.co.uk :-) ::::: :
==========================================================
--
--
Warren Block
Alan L.M. Buxey (kc...@central.susx.ac.uk) wrote:
: SCSI is indeed DMA,
Not always. This depends on the controller.
: and it is indeed very fast (had a freind that could
: read/write at about 5MB/s - his HD max was supposed to be about 8MB...
Manufacturer-specified maximum rates are always on the high side.
Sometimes they just quote the SCSI max, which is why you see all the "Why
doesn't my drive transfer 10MB/sec?" posts in comp.periphs.scsi.
--
-----------------------------------
Warren R. Block * Rapid City SD USA
-----------------------------------
Bruce Abbott
>On 27 May 96 17:32:46 MEZ ,Dr. Peter Kittel posted the following:
>: To say the same as the first guys to answer in different words:
>: In the A1200, it's a very small portion of the Gayle chip plus some
>: lines from other chips, and in the CD32, there's no IDE at all in
>: the configuration as shipped.
>what controls the CDROM drive then?
Akiko, which also does just about everything else in the CD32 (but only
_exactly_ what's needed ie. not IDE, floppy, printer or serial control.)
And now for the $64,000 question, did Commodore ever tell _anybody_ how
Akiko, Gayle etc. work? Or will these chips remain forever a mystery?
>alan
>--
>- (c) Alan Postings Ltd - A division of Alans(tm) Corporate body(tm) :-)
>Date: Mon Jun 3 15:47:01 BST 1996 Issue:01/00/00 NOT to be carried on M.S.N.!
> - HEALTH WARNING: The InterNet can be addictive and cause a lack of real -
> - social life. Use with care. Not to be taken more than four times daily. -
Joern Plewka [pe]
te...@pimple.demon.co.uk (terry) -> "Re: Which chip is IDE controller in A1200/A600?"
(03.06.1996)
> > On 27 May 96 17:32:46 MEZ ,Dr. Peter Kittel posted the following:
>
> >: To say the same as the first guys to answer in different words:
> >: In the A1200, it's a very small portion of the Gayle chip plus some
> >: lines from other chips, and in the CD32, there's no IDE at all in
> >: the configuration as shipped.
>
> > what controls the CDROM drive then?
> its got a scsi interface
Would be nice...it`s simply no standart controller...custom made.
It had to be very very cheap. Remember IDE-MKE (MitsumiFX1) it was
such sort of things, too.
BTW: It`s a chinon drive.
/ /PowerPC/ / j_pl...@people-s.people.de / /ultimate/ /
/ /the/ / plew...@informatik.fh-hamburg.de / /Engine/ /
/ - +-----------------------------------+ - /
/ http://users.informatik.fh-hamburg.de/~plewka_j /
Please stop writing to Amtrash temporary...I won`t answer!
Alan Redhouse
>>So, does the CD32 have a Gayle chip somewhere?<<
As far as I know the bits that the CD32 needs are in the Akiko. The IDE
chip selects etc have to be implemented in separate logic.
Cheers
Alan M Redhouse
Eyetech Group Ltd
The Old Bank, 12 West Green , Stokesley, N Yorks, TS9 5BB
Phone: +44 (0) 1642 713 185
FAX: +44 (0) 1642 713 634
Email: eye...@cix.compulink.co.uk
Alan Redhouse
>>what are these buffered cables? Anything special<<<
Well special enough to have to make them from several bit of silicon and
a pcb - but - as someone once told me - all silicon is just sand anyway ;)
It basically puts in the circuitry which is standard on a PC & A4000
>> I'm looking at bunging an atapi drive on my internal IDE prot,
as well as my 260mb Seagate<<
Well we're selling complete kits with the buffered cable, 4x CDrom in an
external case with mains power s/w etc for UKP127.61 ex VAT
Rask Ingemann Lambertsen
On 03 Jun 96 23:42:29 +0000 terry (te...@pimple.demon.co.uk) wrote:
> > On 27 May 96 17:32:46 MEZ ,Dr. Peter Kittel posted the following:
> >: To say the same as the first guys to answer in different words:
> >: In the A1200, it's a very small portion of the Gayle chip plus some
> >: lines from other chips, and in the CD32, there's no IDE at all in
> >: the configuration as shipped.
> > what controls the CDROM drive then?
> its got a scsi interface
A SCSI interface??? Would it be possible to connect a harddisk though
that interface? That would be a lot easier than trying to hack an IDE
interface into it.