Bus masters 14 and 16 may be implemented as any of a variety of differing types of functional devices, such as a central processing unit , a direct memory access controller, {HEAD ~ any type} of processor or {TAIL ~ any other device} that functions as a bus master 
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Bus masters 14 and 16 may be implemented as any of a variety of differing types of functional devices , such as a central processing unit , a direct memory access controller , { HEAD ~ any type } of processor or { TAIL ~ any other device } that functions as a bus master
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH