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1. (WO2018042767) BUS CONTROL CIRCUIT, SEMICONDUCTOR INTEGRATED CIRCUIT, CIRCUIT SUBSTRATE, INFORMATION PROCESSING DEVICE, AND BUS CONTROL METHOD

Pub. No.:    WO/2018/042767    International Application No.:    PCT/JP2017/017601
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed May 10 01:59:59 CEST 2017
IPC: G06F 13/36
G06F 12/00
Applicants: SOCIONEXT INC.
株式会社ソシオネクスト
Inventors: OTANI, Takayuki
大谷 敬之
KAMIGATA, Teruhiko
上方 輝彦
KAWASAKI, Takashi
川崎 貴之
NIMODA, Eiichi
仁茂田 永一
Title: BUS CONTROL CIRCUIT, SEMICONDUCTOR INTEGRATED CIRCUIT, CIRCUIT SUBSTRATE, INFORMATION PROCESSING DEVICE, AND BUS CONTROL METHOD
Abstract:
Provided is a bus control circuit that: mutually converts a first exclusive command of a first bus specification, which corresponds to exclusive access and which has a first format, with a second exclusive command of the first bus specification, the second exclusive command having a second format adapted to a second bus specification not corresponding to exclusive access; and propagates the exclusive commands of the first and second bus specifications. The bus control circuit includes: an exclusive command converting circuit that, during conversion of the first exclusive command to the second exclusive command, receives the first exclusive command, converts the first exclusive command to the second exclusive command, and then outputs the second exclusive command; an exclusive command generating circuit that, during conversion from the second exclusive command to the first exclusive command, receives the second exclusive command and generates the first exclusive command; an exclusive response issuing circuit that, during conversion from the second exclusive command to the first exclusive command, issues exclusive response information regarding the second exclusive command; and an exclusive response receiving circuit that, during conversion of the first exclusive command to the second exclusive command, receives the exclusive response information regarding the second exclusive command.