r.lagendijk_at_hccnet.nl
Date: 2008-11-30 13:23:55
Maybe this is a starting point. But you need an image of a working PLA I
think.
http://staff.washington.edu/rrcc/uwweb/eprompla/
Richard
Op Zo, 30 november, 2008 1:01 pm schreef Charlie:
> 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?
>>>>>
>>>>>
>>>>>
>>>
>>
>>
>>
>> Message was sent through the cbm-hackers mailing list
>>
>>
>
>
>
> Message was sent through the cbm-hackers mailing list
>
>
--
www.richardlagendijk.nl
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