network packager

Thread Starter

mudassaralvi

Joined Apr 28, 2010
2
Network Packager

Problem

There is an Ethernet card that lacks checksum calculation and you are required to add this functionality. The Ethernet card is to get 4 bits at a time from the CPU and collect until it has 16 bits. Then it adds the 4, 4 bit numbers and uses the lower four bits for checksum, thus making a total of 20 bits. It then sends one bit with every clock cycle until the buffer is empty. During transmission it does not receive new data from the CPU.

Input

Clock Pulse CP

Input Available IA
Data D0…D3

Output

Output Available OA

Output Data OD
any one can sketch a block diagram...help
 
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