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附图中，是datashe5网站搜索，tms320dm6437的结果，
ZDU、ZWT分别代表什么。
后面接的 Q4、Q6、4、6 又是什么意思？
看6437的datasheet没看明白，
你好，请看datasheet第71页的：Figure 2-10. Device Nomenclature，里面有详细说明。
谢谢，找到了，
