It depends on what he wants to use it for.
Personally, I use Microchip's ENC 28J60 10 Mb/s mac+phy for SPI, it
allows me to receive/send ethernet frames. No TCP. They have an improved
version for 10/100 Mb/s network with a parallel port access (+ spi).
For one project I designed-in an SMSC's 10/100 MAC+PHY in one chip, that
had 16/32 bit parallel SRAM like interface.
If the cost is the question, then for FPGA designs, an PHY-chip is
enough, with MAC implemented in fpga.. that can be the way to get to
1000 Mb/s.
For the TCP/IP stack I do not know any chips - just an assembly called
XPORT. Some versions have eth-serial only, some offer TCP stack. I
haven't worked with them.. I have my own stack now :)
I suppose they will use some AT command set like interface, to
initiate/receive TCPIP.
D.
Timothy Normand Miller wrote:
A friend of mine wants to put a NIC chip on an FPGA board. I'm
guessing he needs one with a microcontroller in it for the TCP/IP
stack. But besides that, I don't know anything about it. Can anyone
make any good suggestions?
Thanks.
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