Re: SWIM Chip replacement for PCTransporter

["Henry" <apl2research@comcast.net>]

Quick search on the Net found this, but it's only one post - so it's hard to 
say for sure.

Website: http://lamp.a2central.com/GenieLamp_A2/Text/1994/ALMP9402.TXT
Do a search for "010-0101-1".

Post:
SWIM CHIP   I need a bit of help...
"""""""""   I have a PCT here for repair, I believe it has a dead drive
controller chip on it... What does this have to do with SuperDrives??
Simple, the chip in question is an Apple chip! I strongly suspect that AE
obtained these from Apple, and that they may be the same chip used on the
SuperDrive controller cards.

     The Apple part number is:010-0101-1 (c) Apple 1987 It is a 44 pin
PLCC (about 3/4" square surface mount chip)

     If someone with a SuperDrive controller could check for a chip with
this number (it might end with -2 or higher) I'd appreciate it. (It would
at least give me an idea of where I might be able to find a chip to fix
this PCT)

     Thanks!

-Harold
(Wed Night RTC 11pm 1am EST)
(Hdwr probs handled live!)
(H.HISLOP, CAT11, TOP7, MSG:67/M645;1)

>>>>>   ]-[arold, that chip is indeed the same chip as used on Apple's
"""""   SuperDrive controller card.  It's the SWIM (Super Wozniak
Integrated Machine) chip, which replaced the IWM (Integrated Wozniak
Machine -- yes, they switched the "I" and the "W" because "SWIM" sounds
better than "SIWM" :) chip on Macs sometime after the Mac SE came out.
Applied Engineering purchased a number of those chips from Apple for use on
their PC Transporter cards, to enable the PCT to have Apple drives
connected directly to it and read and write data in MFM format with them
(they had to do some tricks in microcode to get them to do all that on 800K
drives designed only for GCR, though, and as people with PCTs know, it's
not perfect).

                                                        -= Lunatic     (:
                 (A2.LUNATIC, CAT11, TOP7, MSG:69/M645;1)


So there we have it.  Proof it's an SWIM?  Not 100% but it does look good 
that it is.  Did you get the Transporter at a good price?  Might be the same 
one as talked about in the post! ;-)  BTW - my IC on the Transporter is 
mounted.



Henry S. Courbis
www.GSE-Reactive.com
Apple II Series Legacy Hardware - Come take a look at what we have to offer!


"Randall Flagg" <rfs@_nospamz_apple2.com> wrote in message 
news:ds9ql3$k61$1@online.de...
> Hi,
>
> for years now I am looking for a SWIM chip to replace the fryed one on a 
> PCTransporter. As I don't found a source for buying one I found out that 
> Mac IIv computers also have a SWIM chip onboard, but in a newer revision. 
> Can anyone confirm if I could use the Mac's SWIM IC as replacement for the 
> PCT?
>
> PCT SWIM IC:
>
> 745 V I662
> VGT7764-6018
> 010-0101-1
> c Apple 1987
>
>
>
> MAC SWIM IC:
>
> 9316BS 404051
> VC2982-0002
> 34390061-A
> c Apple 88
>
>
> Both are 44 pin PLCC packaging.
>
>
>
> RFS
>
>
>
> P.S: If there are other sources for SWIM chips... tell me!
>