(Please visit the site to view this file)(Please visit the site to view this file) Hello Nima, I am attaching the block diagram of the application being developed. Based on this the following points need to be mentioned: 1. The Ethernet port can be external. However, th microcontroller should be able to drive the external PHY directly. Basically a dedicated port should be there for Ethernet interfacing and not shared with other ports. 2. The application being developed on the Ethernet port will be SNMP and so necessary libraries should be available for the development. 3. The LCD will an external 16 x 2 Alphanumeric LCD normally available (see attached data sheet). This should be driven directly from the micro-controller without sharing of Data bus. Basically it should be a dedicated port. In case this is not possible, I can consider an SPI based LCD (if it is available readily) to prevent sharing of data bus. 4. The serial ports required will be 02 numbers RS232 type. Additional ports (if any) will not be used and it would be an over kill to have 8. 5. The operating temperature range should be -10C to +55C 6. Package must be non-BGA. 7. If Development board / evaluation board for the micro-controller is available it would be an added advantage. Hope with this information you can help narrow down the device. Regards Sandeep Chawla
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