Lpc2000

----- Original Message ----- 
From: "K B Shah-lascaux" <kbshah@...>
To: <lpc2000@yahoogroups.com>
Sent: Wednesday, March 15, 2006 5:02 PM
Subject: Re: [lpc2000] ARM Thruput expectations


> Running from Flash is also fast...
> Look at pipeline architecture....
> LPC series  from Philips semi. has memory accelerator module (MAM)  that 
> allows instruction and data fetch in advance ...
>
> k b
>  ----- Original Message ----- 
>  From: raweaver06
>  To: lpc2000@yahoogroups.com
>  Sent: Wednesday, March 15, 2006 11:36 AM
>  Subject: [lpc2000] ARM Thruput expectations
>
>
>  I'm looking into using ARM so I'm a newbie.  I currently use a
>  processor that is 16 bits 30MIPS capable.  So seeing that ARM is 32
>  bits and 60 MIPS capable has me wanting.  I've read that real world is
>  actually 52 MIPS (still above my baseline 30 MIPS).  But then I've seen
>  where you have to run 1/4 speed out of FLASH.  So is the 52 MIPS number
>  just running out of RAM?  I'll need most of my RAM for application so I
>  want the program to stay in FLASH.  Does running out of FLASH mean 52/4
>  for only 13 MIPS thruput.  I might as well stay with my current
>  processor if so.  I might as well stop reading all of this ARM
>  documentation if this is true.

The Philips ARM chips can run at full speed from flash, it has a128 bit 
interface which speeds it up. They can't toggle outputs very fast, the newer 
chips have faster I/O but it's still nothing like the instruction rate.

Leon