Invention Grant
- Patent Title: Streaming engine with deferred exception reporting
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Application No.: US16988500Application Date: 2020-08-07
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Publication No.: US11573847B2Publication Date: 2023-02-07
- Inventor: Joseph Zbiciak , Timothy D. Anderson , Duc Bui , Kai Chirca
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Brian D. Graham; Frank D. Cimino
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G06F11/07 ; G06F11/30 ; G06F12/0875 ; G06F12/0862 ; G06F11/27 ; G06F13/16 ; G06F9/30 ; G06F9/345 ; G06F9/38 ; G06F11/36 ; G06F11/10

Abstract:
This invention is a streaming engine employed in a digital signal processor. A fixed data stream sequence is specified by a control register. The streaming engine fetches stream data ahead of use by a central processing unit and stores it in a stream buffer. Upon occurrence of a fault reading data from memory, the streaming engine identifies the data element triggering the fault preferably storing this address in a fault address register. The streaming engine defers signaling the fault to the central processing unit until this data element is used as an operand. If the data element is never used by the central processing unit, the streaming engine never signals the fault. The streaming engine preferably stores data identifying the fault in a fault source register. The fault address register and the fault source register are preferably extended control registers accessible only via a debugger.
Public/Granted literature
- US20200371888A1 STREAMING ENGINE WITH DEFERRED EXCEPTION REPORTING Public/Granted day:2020-11-26
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