[ixp1200] Timer from microengines...

[Heaton, Eric D]

Austen,

The CYCLE_CNT CSR (accessable from the IX Bus Interface Unit) can be used to
implement timing schemes.  Have you taken a look at the cycle macros (found
in \IXP1200\Microcode\include\cycle.uc) for examples on how to access this
64-bit counter?

     Eric Heaton
     Technical Marketing Engineer
     Intel Corporation - PNPO
     phone: 978-568-6027


-----Original Message-----
From: Austen McDonald [mailto:austen at cc.gatech.edu]
Sent: Tuesday, June 05, 2001 2:47 PM
To: ixp1200 at CS.Princeton.EDU
Subject: [ixp1200] Timer from microengines...



	Im looking for a timer for use inside microcode (for network
protocol timeout). I know there is the timer from the arm but Ive heard
that the IX bus has some kind of timer that I might be able to tap into?
Does anyone know about this? Must I use the SA timer if I want to wait a
certain period of time?

Austen McDonald
austen at cc.gatech.edu

God does not care about our mathematical difficulties. 
He integrates empirically.
  -- Albert Einstein