difference bitween ARM 7 and ARM9

Hi,

Does anyone can explain me
the difference bitween ARM7 and  ARM9 ?

--
-Stan

On Oct 19, 11:06 am, "Stan" <n...@none.invalid> wrote:
> Hi,
>
> Does anyone can explain me
> the difference bitween ARM7 and  ARM9 ?

This document from ARM is a good start: http://www.arm.com/pdfs/comparison-arm7-arm9-v1.pdf

"Stan" <none@none.invalid> wrote in message 
news:ff9rt5$i6g$1@s1.news.oleane.net...
> Hi,
>
> Does anyone can explain me
> the difference bitween ARM7 and  ARM9 ?

Easy! ARM2 :-p 

On Oct 19, 2:26 pm, Arlet <usene...@c-scape.nl> wrote:
> On Oct 19, 11:06 am, "Stan" <n...@none.invalid> wrote:
>
> > Hi,
>
> > Does anyone can explain me
> > the difference bitween ARM7 and  ARM9 ?
>
> This document from ARM is a good start:http://www.arm.com/pdfs/comparison-arm7-arm9-v1.pdf

Nice Link :-)

Karthik Balaguru

On Oct 19, 5:06 am, "Stan" <n...@none.invalid> wrote:
> Hi,
>
> Does anyone can explain me
> the difference bitween ARM7 and  ARM9 ?
>
> --
> -Stan

The major difference that I have found is that some ARM9 systems
implement an MMU (Memory Management Unit) and more advanced PC-based
interfaces such as PCI / USB / etc... However, there are several high-
end versions of the ARM7 and several low-end versions of the ARM9 that
are starting to blur these lines.

Keith
http://www.doubleblackdesign.com

"Stan" <none@none.invalid> wrote in message 
news:ff9rt5$i6g$1@s1.news.oleane.net...
> Hi,
>
> Does anyone can explain me
> the difference bitween ARM7 and  ARM9 ?
>
> --
> -Stan
>
>

From the programmers point of view there is very little difference, but 
under the hood the devices are actually quite different.  Of significance, 
the ARM9 has a modified Harvard architecture, whereas the ARM7 has a single 
bus for both data and instructions.  Also the ARM9 has a deeper pipeline. 
Both these factors, plus probably many others, permit greater 'speed' to be 
obtained on the ARM9.  However the actual performance achieved is dependent 
on many other factors, for example the interface between the FLASH memory 
and the processor, so ARM9 does not automatically mean an increase of n% in 
performance over an ARM7.

-- 
Regards,
Richard.

+ http://www.FreeRTOS.org
13 official architecture ports, 1000 downloads per week.

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Tom Lucas wrote:
> "Stan" <none@none.invalid> wrote in message 
> news:ff9rt5$i6g$1@s1.news.oleane.net...
> 
>>Hi,
>>
>>Does anyone can explain me
>>the difference bitween ARM7 and  ARM9 ?
> 
> 
> Easy! ARM2 :-p 

Close, but no cigar.
a) Difference between ARM7 and ARM9 is 2
and (slight guess here, keying off the root BIT i BITween )
b) difference bitween ARM7 and  ARM9  is 10 ?

:)

On Oct 19, 1:07 pm, Jim Granville <no.s...@designtools.maps.co.nz>
wrote:
> Tom Lucas wrote:
> > "Stan" <n...@none.invalid> wrote in message
> >news:ff9rt5$i6g$1@s1.news.oleane.net...
>
> >>Hi,
>
> >>Does anyone can explain me
> >>the difference bitween ARM7 and  ARM9 ?
>
> > Easy! ARM2 :-p
>
> Close, but no cigar.
> a) Difference between ARM7 and ARM9 is 2

I though of that too, but came to the conclusion that ARM is a unit
not a number

:)

Robert

"Jim Granville" <no.spam@designtools.maps.co.nz> a &#4294967295;crit dans le message de 
news: 4718e41f$1@clear.net.nz...
> Tom Lucas wrote:
>> "Stan" <none@none.invalid> wrote in message 
>> news:ff9rt5$i6g$1@s1.news.oleane.net...
>>
>>>Hi,
>>>
>>>Does anyone can explain me
>>>the difference bitween ARM7 and  ARM9 ?
>>
>>
>> Easy! ARM2 :-p
>
> Close, but no cigar.
> a) Difference between ARM7 and ARM9 is 2
> and (slight guess here, keying off the root BIT i BITween )
> b) difference bitween ARM7 and  ARM9  is 10 ?
>
> :)

Sorry, the binary is my  native language ;-)

--
-Stan

On Oct 19, 6:14 pm, "Tom Lucas"
<news@REMOVE_tlcs_THIS_dot_TO_fsnet_REPLY_dot_co.uk> wrote:
> "Stan" <n...@none.invalid> wrote in message
>
> news:ff9rt5$i6g$1@s1.news.oleane.net...
>
> > Hi,
>
> > Does anyone can explain me
> > the difference bitween ARM7 and  ARM9 ?
>
> Easy! ARM2 :-p

NO!
Should be -ARM2

(+ARM7) - (+ARM9) =  -ARM2