Bus bridge device
First Claim
1. A bus bridge device, connecting a first bus end a second bus, that transmits a processing request sent by a first device connected to the first bus to a second device connected to the second bus, the bus bridge device comprising a notifying unit that has a busy mode in which the notifying unit notifies, when the first device asks the results of the processing request and the result is not received from the second device, a busy message to the first device, releasing the first device to execute other processes, instead of a retry message notified in a retry mode asking the first device to retry.
1 Assignment
0 Petitions
Accused Products
Abstract
A bus bridge device, which connects a first device executing a first process and a second device executing a second process in response to a request from the first device, includes a notifying unit that notifies, when a result of the second process is received from the second device, the result to the first device. The first device executes, after sending the request, a third process until the result is notified from the notifying unit.
9 Citations
10 Claims
- 1. A bus bridge device, connecting a first bus end a second bus, that transmits a processing request sent by a first device connected to the first bus to a second device connected to the second bus, the bus bridge device comprising a notifying unit that has a busy mode in which the notifying unit notifies, when the first device asks the results of the processing request and the result is not received from the second device, a busy message to the first device, releasing the first device to execute other processes, instead of a retry message notified in a retry mode asking the first device to retry.
- 7. A method for controlling a bus bridge device, connecting a first bus and a second bus, that transmits a processing request sent by a first device connected to the first bus to a second device connected to the second bus, the method comprising notifying, when the first device asks the results of the processing request and the result is not received from the second device, a busy message in a busy mode to the first device, releasing the first device to execute other processes, instead of a retry message notified in a retry mode asking the first device to retry.
Specification