Re: [Leica] Re: R8 CPU

[Dennis Painter <dpainter@Bigfoot.com>]

Thanks Pascal,

Interesting, most especially the 80 pins, sounds like the cpu is not
embedded in an ASIC. Volumn considerations I would guess. 

Anyone have a schematic? ;)



Pascal wrote:
> 
> On 23-01-2001 15:45, Dennis Painter wrote:
> 
> >Which CPU(s)? ;)  and to be OT, anyone know what CPU is in the R8?
> 
> The CPU is based upon a 16 bit Mitsubishi chip with 2K RAM and 60K ROM
> running at a clock frequency of 8 Mhz. The CPU is 80 pins, it has 8
> timers, 2 UARTs, an 8 channel 10 bit ADC and a 2 channel 8 bit ADC. All
> data exchange with the camera's internal electronics are done via a
> serial interface. Power supply is 3.8 volts.
> 
> The software to run the R8 requires more than 50K ROM.
> 
> (source: J. Eastland's Leica R8 book)
> 
> Pascal
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