Invention Grant
- Patent Title: Information processing apparatus and exception control circuit
- Patent Title (中): 信息处理装置和异常控制电路
-
Application No.: US11658816Application Date: 2005-08-19
-
Publication No.: US07934082B2Publication Date: 2011-04-26
- Inventor: Hideshi Nishida , Takeshi Furuta , Tetsuya Tanaka , Kozo Kimura , Tokuzo Kiyohara
- Applicant: Hideshi Nishida , Takeshi Furuta , Tetsuya Tanaka , Kozo Kimura , Tokuzo Kiyohara
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2004-248040 20040827
- International Application: PCT/JP2005/015139 WO 20050819
- International Announcement: WO2006/022202 WO 20060302
- Main IPC: G06F9/48
- IPC: G06F9/48

Abstract:
An information processing apparatus performs switching between an exception handler and normal processing. The information processing apparatus includes a processor a data processing unit that performs a particular processing upon receiving a processing request from the processor; an interrupt controller that issues an interrupt request to the processor; and an exception control unit that controls the interrupt controller, wherein the data processing unit is connected with the exception control unit via a dedicated line. The data processing unit includes a notification unit that notifies, via the dedicated line, the exception control unit of status information indicating current status of the data processing unit, and based on the notified status information and setup information set by the processor, the exception control unit judges whether to cause the interrupt controller to issue to the processor an interrupt request to execute an exception handler.
Public/Granted literature
- US20090049219A1 INFORMATION PROCESSING APPARATUS AND EXCEPTION CONTROL CIRCUIT Public/Granted day:2009-02-19
Information query