[SI-LIST] Re: Rocket I/O
- From: "Beal, Weston" <weston_beal@xxxxxxxxxxx>
- To: Sig Integ Group <si-list@xxxxxxxxxxxxx>
- Date: Wed, 8 Sep 2004 15:42:22 -0700
Rocket I/O uses 8b10b encoding so your stream of 75 ones and 75 zeros will be
encoded to runs of 5 and 3 ones and zeros. Now you're back closer to 620 Mbps.
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Inchauspe, Greg E
Sent: Wednesday, September 08, 2004 2:45 PM
To: Sig Integ Group
Subject: [SI-LIST] Rocket I/O
The data sheet for Rocket I/O specifies a minimum data rate of
620 Mbps. It also specifies a maximum of 75 transition less data bits. If I
transmit a pattern with 75 ones then 75 zeros repeating NRZ at 620 Mbps, this
is equivalent to a 4 MHz square wave. Does this mean the Rocket I/O can do
clock and data recovery on a 4 MHz square wave signal?
thanks,
Greg
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