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Article #685Re: My hat is off to Microchip and their CEO!
From: dagmargoodboat
Date: Sat, 31 Oct 2009 19:45
Date: Sat, 31 Oct 2009 19:45
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On Oct 30, 9:01 am, "TheM" wrote: > "Swanny" wrote: > > Briefly, the Modified-Harvard architecture used in the PIC devices > > separates the program memory from the data memory, in other words > > separates the ROM/FLASH program memory from the RAM. In the case of the > > PIC, the program memory bus width is larger than the data memory bus > > width, allowing transfer of the complete instruction op code in fewer > > cycles (many instructions take only 1 cycle). > > Just like with AVR, practically everything 1 cycle except branches. > > M But don't the 10xx, 12xx, and 16xx PICs take 4 clocks per instruction cycle? AVRs only take 1 clock per instruction (with the usual exceptions). -- James Arthur
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