| ??? 05/14/09 09:49 Read: times |
#165318 - Marketing demagogy Responding to: ???'s previous message |
Richard Erlacher said:
Normally, when a core executes one single-cycle instruction in one system clock cycle, regardless of how the system clock is generated, it's considered a one-clocker and the manufacturer proudly makes this a central part of his advertising. These guys didn't do this, ...
What you wrote about 1-clocker announcement is pure marketing demagogy. Each of available 8051 as so called "1-cloker" is simply marketing fake. Why? Because having 8-bit architecture with variable length of instructions (1- 2- 3- bytes), we need more than 1 CLK period to fetch the instruction. Of course someone can claim that probably they have 48-bit internal buses and so on "tricks", but so far it is not the case. For example LCALL, LJMP, DJNZ, RET and others take more than 1 CLK to fetch and execute. So in my opinion announcing that DT8051 is 1-clocker would be simple faking the audience. Talking about DLL/PLL inside the DIGITAL core to manipulate the internal clock is really funny ... Yes I know that silabs has such feature, and the others too, but I haven't seen this noticed in DT8051 or any other 8051 IP Core, so why suspecting that DT8051 probably has such hidden magic feature? |
