RE: Mistery module - more details and corrections

Gianmario.Scotti_at_nokia.com
Date: 2003-10-14 20:26:22

> -----Original Message-----
> From: ext William Levak [mailto:wlevak@cyberspace.org]
> Sent: 14 October, 2003 20:41
> To: cbm-hackers@cling.gu.se
> Subject: Re: Mistery module - more details and corrections
> 
> 
> On Tue, 14 Oct 2003 Gianmario.Scotti@nokia.com wrote:
> 
> > Let me resend this message, with corrections:
> > 
> > 
> > 
> > This is what I find inside:
> > 
> > "8646" - EF6821P "Peripheral I/F adapter"
> > CDM6264 - 8K * 8 SRAM
> > EPROM
> > Three 74LS glue logic ICs - 74LS74, 74LS04, 74LS33
> 
> The 6821 is the Motorola equivalent of the 6520.  Since this is an
> interface chip, it must be connected to something.  Is there 
> a connector
> on the cartridge?  That would give some clue as to what it does.  
> 
> What type is the EPROM?  Can you remove it and read the contents?
No, no connector, except for the edge connector that goes to the C-64. I could remove the EPROM, but can't read the contents.
The EPROM, if my eyes can read that correctly, seem to be a D27512, a 64KB capacity EPROM.


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