Invention Grant
US09405604B2 Method and apparatus for connecting debug interface to processing circuits without sideband interface
有权
将调试接口连接到没有边带接口的处理电路的方法和装置
- Patent Title: Method and apparatus for connecting debug interface to processing circuits without sideband interface
- Patent Title (中): 将调试接口连接到没有边带接口的处理电路的方法和装置
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Application No.: US14253150Application Date: 2014-04-15
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Publication No.: US09405604B2Publication Date: 2016-08-02
- Inventor: Nitin Bhargava
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Erik A. Heter
- Main IPC: G06F13/12
- IPC: G06F13/12 ; G06F9/45 ; G06F11/00 ; G01R31/317 ; G06F11/22

Abstract:
An integrated circuit (IC) having a debug access port coupled to a processing circuit without a dedicated sideband interface is disclosed. In one embodiment, an IC includes a processor circuit and a DAP. The IC also includes a communications fabric over which communications transactions may be conveyed between the various functional circuits of the IC using a fabric protocol. Both the DAP and the processing circuit are coupled to the communications fabric. The IC also includes a translation circuit coupled between the processing circuit and the communications fabric. The translation circuit may translate transactions conveyed between the processing circuit and the DAP from or to a debug protocol to or from the fabric protocol. Thus, the DAP and the processing circuit may communicate according to the debug protocol without a dedicated sideband coupled therebetween.
Public/Granted literature
- US20150293172A1 Method and Apparatus for Connecting Debug Interface to Processing Circuits Without Sideband Interface Public/Granted day:2015-10-15
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