Invention Grant
- Patent Title: Receiver based communication permission token allocation
- Patent Title (中): 基于接收者的通信权限令牌分配
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Application No.: US13918025Application Date: 2013-06-14
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Publication No.: US09213660B2Publication Date: 2015-12-15
- Inventor: Sean James Salisbury , Andrew David Tune , Alistair Crone Bruce
- Applicant: ARM Limited
- Applicant Address: GB Cambridge
- Assignee: ARM Limited
- Current Assignee: ARM Limited
- Current Assignee Address: GB Cambridge
- Agency: Nixon & Vanderhye P.C.
- Main IPC: G06F13/00
- IPC: G06F13/00 ; G06F13/362

Abstract:
A data processing apparatus is provided with a master device and a slave device which communicate via communication circuitry. The slave device is associated with a predetermined number of permission tokens that is equal to a maximum number of currently pending messages that can be accepted for processing from the communication circuitry by that slave device. The slave device transmits these permission tokens to the master device. The master device takes exclusive temporary possession of the permission tokens that it receives such that the permission tokens are then no longer available to any other master device. A master device initiates a message to a slave device when the master device has exclusive temporary possession of a permission token for that slave device. When the master device has initiated its message, then it relinquishes the exclusive temporary possession of the permission token such that it is then available for other devices.
Public/Granted literature
- US20140372646A1 RECEIVER BASED COMMUNICATION PERMISSION TOKEN ALLOCATION Public/Granted day:2014-12-18
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