Title:Storage-matching-forwarding unit circuit in dynamic dataflow structure
Country:China
Patent No.:200910093721.0
Legal Status:Authorized
Inventor:Xiangyu Li, Yihe Sun, Bo Yu
Assignee:Tsinghua University
Address:Tsinghua University,Haidian District Beijing 100084, China
Filing Date:2009-10-15
Issue Date:2012-05-22
Abstract:
The invention relates to a storage-matching-forwarding unit which is used for leading a dataflow circuit to realize token temporary storage, matching and forwarding functions; the storage-matching-forwarding unit is characterized in that: the whole unit is composed of a token temporary storage unit, a token matching unit and a token forwarding unit; the token temporary storage unit is composed ofa token temporary register and a token flag bit, the token flag bit is composed of one group of C units for expressing weather the token is in order; the token matching unit is composed of matching logic, a latch, an arbiter and a multi-route selector, wherein the specific forms of the matching logic and the arbiter are collocated according to the application requirements, the token matching unitoutputs the address of the token in order according to the situation of the token in the token temporary register, and the token forwarding unit takes out of the token in order and is composed two C units, one intersection gate, one disjunction gate, one time-delay unit and an output register, the two C units realize handshaking communication of the forwarding unit and the surrounding units, the time-delay unit ensures the token in the register to be correctly written in an output register, and the intersection gate and the disjunction gate ensure correct time sequence of a clear signal and alock signal.
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