| 摘要 |
An embedded system includes an ARM processor and a number of b-bit peripheral processors connected to the ARM processor through a converting chip. The ARM processor includes pins P0˜Pa-1 divided into teams T1˜TN, each of which includes b pins, a and b are integral multiple of 8, wherein a=N×b. The number of the peripheral processors is N and each team corresponds to one peripheral processor. The converting chip reads an a-bit data from the ARM processor, converts the data into a plurality of b-bit data, and transfers each b-bit data to a peripheral processor, where the number of the b-bit data is N. The converting chip further reads one b-bit data from each peripheral processor in sequence, converts the read plurality of b-bit data into an a-bit data, and transfers the a-bit data to the ARM processor.
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