Eric Smith
Guest
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 Posted:
Fri Dec 24, 2004 1:31 am Post subject:
Re: non-PCI 10/100 Ethernet Controller on the cheap |
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"Ulf Samuelsson" <ulf@NOSPAMatmel.com> writes:
| Quote: | Maybe, Maybe not, Atmel just licensed a Gigabit Ethernet PHY
and I am trying to find out if it is applicable to 10/100 as well,
and then if it is cost effective. Would be nice, wouldn't it?
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It would be nice to see a part like the AT91RM9200, but with an integral
PHY. So far the only ARMs with an integral MAC and PHY that I've found
are from Micrel and Broadcom. Both require external Flash memory. I'm
having a hard time getting the eval board for the Micrel, though chips
are readily available through distribution and fairly inexpensive even
in small quantities. Broadcom appears to not want to sell chips except
in large OEM quantities, and technical documentation appears to only be
available under NDA.
The other part I've seen with an integrated PHY is the new Freescale
MC9S12NE64. It has on-board 64KB of onboard Flash memory, but only
8KB of RAM, so I'm not sure if it will be suitable for any of my
designs without adding external RAM. |
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Zonn
Guest
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| Posted:
Tue Jan 04, 2005 7:04 am Post subject:
Re: non-PCI 10/100 Ethernet Controller on the cheap |
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On 23 Dec 2004 12:31:22 -0800, in msg <qhwtv8ah9h.fsf@ruckus.brouhaha.com>, Eric
Smith <eric-no-spam-for-me@brouhaha.com> wrote:
| Quote: | "Ulf Samuelsson" <ulf@NOSPAMatmel.com> writes:
Maybe, Maybe not, Atmel just licensed a Gigabit Ethernet PHY
and I am trying to find out if it is applicable to 10/100 as well,
and then if it is cost effective. Would be nice, wouldn't it?
It would be nice to see a part like the AT91RM9200, but with an integral
PHY. So far the only ARMs with an integral MAC and PHY that I've found
are from Micrel and Broadcom. Both require external Flash memory. I'm
having a hard time getting the eval board for the Micrel, though chips
are readily available through distribution and fairly inexpensive even
in small quantities. Broadcom appears to not want to sell chips except
in large OEM quantities, and technical documentation appears to only be
available under NDA.
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I was a software contractor for a while, working for DirecTV, who has used
Broadcom chips in the past. They were, by far, the worst company I've ever
worked with in getting information for their chipsets.
When DirecTV has problems getting information you know something is screwed up
with that company's marketing division.
Broadcom's chips were usually superior in design, however DirecTV (it was
actually Hughes for that job) would go with STMicro stuff when at all possible
because of the problems with dealing with Broadcom. Ok, chipset costs also had
something to do with it...
-Zonn
--
Zonn Moore Remove the ".AOL" from the
Zektor, LLC email address to reply.
www.zektor.com |
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