Title:
BUS SYSTEM
Document Type and Number:
Japanese Patent JP2020140286
Kind Code:
A
Abstract:
To return a response to a master in the order in which an access is issued when the master accesses multiple slaves that operate independently.SOLUTION: A bus system includes a master, a first slave, a second slave, and a bus for connecting the first and second slaves from the master; the master issues a first access to the first slave; in a bus system for issuing a second access to the second slave before receiving a response to the first access, when receiving a second access from the master, the bus issues the second access to the second slave regardless of the response state of the first access; the first access includes succeeding access slave information indicating to which slave the second access is issued, the first slave notifies the second slave of the state of the first access on the basis of the succeeding access slave information, and the second slave determines whether or not to execute the second access on the basis of the state of the first access.SELECTED DRAWING: Figure 1
Inventors:
LI SHEN
Application Number:
JP2019033571A
Publication Date:
September 03, 2020
Filing Date:
February 27, 2019
Export Citation:
Assignee:
CANON KK
International Classes:
G06F13/36; G06F12/00; G06F12/06; G06F13/16
Attorney, Agent or Firm:
Takuma Abe
Sogo Kuroiwa
Sogo Kuroiwa