I am using a MPC850DSL @ 50Mhz. The UTOPIA interface runs at 25Mhz but the ATM PHY transmits at (2048 + ATM OH)k bits/sec. We intend to use the AAL0 mode available in this model of PowerPC. Regarding how many interrupts/sec we excpect, I think one interrupt per ATM cell would consume too much CPU, but the delay would be smaller. I guess we'll only know the exact number of interrupts after doing some prototype testing.
PS.: the Zarlink chips would fit very well in this application....if they had a SINGLE-CHANNEL part. Robert. ---------- Forwarded Message ---------- Subject: TDM (E1) transport over ATM AAL1 Date: Tue, 5 Nov 2002 15:10:05 +0000 From: [EMAIL PROTECTED] To: linuxppc-embedded at lists.linuxppc.org Um, it's rather difficult to say without knowing *anything* about your hardware. Embedded PowerPC cores vary considerably in performance between models/make. You also don't mention how many interrupts you expect per second - is there going to be an interrupt per ATM cell? Phillip ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
