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ethernet chip

 
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dlh



Joined: 15 Dec 2006
Posts: 266
Location: ~Cincinnati
Posted: 09 October 2008, 16:04 PM    Post subject: ethernet chip Reply with quote
Tibbo uses the Davicom DM9000A ethernet chip in some of their serial device servers. The Davicom chip is +5V tolerant and has an 8 or 16 bit parallel data bus. In 8-bit mode, there are 5 GPIO pins. It interfaces to an external EEPROM for storing MAC, etc. It looks like it might be a good candidate for providing ZBasic chips with a low-level ethernet interface. Here are links to an application note and to the datasheet.I have not found a source, however.
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stevech



Joined: 23 Feb 2006
Posts: 657
Posted: 10 October 2008, 6:33 AM    Post subject: Reply with quote
I've used and prefer these

WizNet 811MJ
ConnectOne WiFi

My idea is that these modules must off-load IEEE 802.3, IP, TCP, ICMP, ARP. And as in the case of ConnectOne, offload most of the popular high level protocols like FTP, SMTP, SNMP, BSD Sockets. An attached micro (like a ZX) can talk to the ConnectOne via high speed UART serial and do all of these.
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