第一种和第二种架构一般而言比较具有挑战性，因为并行接口需要大量连接和外部隔离。
The first and second architectures are generally challenging due to the significant number of connections and the external isolation required for the parallel interface.
电路采用可变结构帧存形式，与两片TMS320C40 灵活的外部接口及强大的通信能力相结合，使系统可方便地组织成SIMD、MIMD等并行处理结构及流水处理结构；
This, combined with the flexible interface and powerful communication capability of TMS320C40 , made the system be easily configured as SIMD, MIMD parallel and pipeline structures.
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