Re: 906114-4 and 5

From: Charlie (charles.lynch_at_ns.sympatico.ca)
Date: 2008-11-30 13:01:33

Hi Again,
  I really need to find someone who can burn these chips or someone who can 
point me in the direction of getting the proper equipment and instructions 
to use it.
Charlie
----- Original Message ----- 
From: "B Degnan" <billdeg@degnanco.com>
To: <cbm-hackers@ling.gu.se>
Sent: Saturday, November 29, 2008 10:44 PM
Subject: Re: 906114-4 and 5


> Charlie,
>
> I retract my earlier statement upon receipt of new information.
>
> Here is what is printed on the PLA's for the CBM high profile systems that 
> I have:
>
> 906114-04
> CBM2 LP 4 PLA
> HIGH BOY
> (known to work with the 8088 co-processor in a B700 prototype)
>
> 906114-05
> HIGH BOY
> 62E5
> (found in 3 CBM 256-80 systems; 2 with and one without with the 8088 
> co-processor)
>
> Given the evidence the 906114-05 will work in the non 8088 CBM 256-80 and 
> this is the PLA you want.   I do not have any systems with the -01, I was 
> mistaken.  Thus I can't say that the -01 will help you.
>
> Bill
>
> Bill Degnan wrote:
>> I can check one of mine to see what's in there. In the meantime I'll bet
>> that YES the -1 version will work, perhaps the later revs were updated to
>> accommodate the 8088, and if I am correct the -1 is just a production PLA
>> for the CBM 256-80.  I checked the CBM ROM genealogy, it's not a ROM, and
>> it's not there.
>>
>> I will check asap.
>>
>> bd
>>
>>
>>>
>>>
>>>
>>>> Charlie wrote:
>>>>
>>>>
>>>>> Do you know anyone who can do that for me?
>>>>>
>>>> I was going to have a look, but probably I can only source 906114-1
>>>> just like Rolf offered. Does the rev. 4 and 5 only exist in hi-profile
>>>> 8088 equipped machines?
>>>>
>>>>
>>
>
>
>
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> 



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