Title:
ＰＣＩエクスプレス適合デバイスの資源にアクセスするためのシステム及び方法
Document Type and Number:
Japanese Patent JP5893020
Kind Code:
B2
Abstract:
A system and method using messages to access registers and memory in a PCI Express communications link environment. Vendor defined PCI Express messages can be used to read and write to the memory-mapped or register space of a device. Four types of accesses are defined using this messaging approach, namely memory read, memory write, configuration read and configuration write. The type of register access desired is defined by the appropriate value in a vendor-specific type field in the header of the vendor defined message. If a PCI Express compliant device at the other end of the PCI Express link does not support these types of messages, the messages are silently discarded by the receiver and no error is reported.
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Inventors:
Betty rack
Gordon F. Charuk
Gordon F. Charuk
Application Number:
JP2013519835A
Publication Date:
March 23, 2016
Filing Date:
July 14, 2011
Export Citation:
Assignee:
ADVANCED MICRO DEVICES INCORPORATED
ATI TECHNOLOGIES ULC
ATI TECHNOLOGIES ULC
International Classes:
G06F13/38
Domestic Patent References:
| JP9128347A | ||||
| JP9026853A | ||||
| JP2010044750A | ||||
| JP2007535006A | ||||
| JP2009205334A | ||||
| JP2008287573A | ||||
| JP2010026592A |
Foreign References:
| US20060288098 | ||||
| WO2007004525A1 |
Other References:
PCI Express Base Specification Revision 1.1,PCI-SIG,2005年 3月28日,Revision 1.1,pp.30-35,44-47,73-75
Attorney, Agent or Firm:
Yuji Hayakawa
Ryota Sano
Keisuke Murasame
Ryota Sano
Keisuke Murasame
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