发明授权
- 专利标题: Event triggered memory mapped access
- 专利标题(中): 事件触发内存映射访问
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申请号: US12485190申请日: 2009-06-16
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公开(公告)号: US08700878B2公开(公告)日: 2014-04-15
- 发明人: William D. Schwarz , Joseph P. Gergen , Jason T. Nearing , Zheng Xu
- 申请人: William D. Schwarz , Joseph P. Gergen , Jason T. Nearing , Zheng Xu
- 申请人地址: US TX Austin
- 专利权人: Freescale Semiconductor, Inc.
- 当前专利权人: Freescale Semiconductor, Inc.
- 当前专利权人地址: US TX Austin
- 代理机构: Yudell Isidore Ng Russell PLLC
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
In one or more embodiments, a data processing system can include at least one core capable of executing instructions of an instruction set architecture and a triggered memory map access (tMMA) system coupled to the at least one core. The tMMA system can receive one or more events and, in response, perform one or more actions. For example, the actions can include transactions which can include a write to a an address of the memory map, a read from an address of the memory map, a read followed by write to two respective addresses of the memory map, and/or a fetch transaction. A result of a transaction (e.g., data read, data written, error, etc.) can be used in generating a trace message. For example, the tMMA system can generate a trace message that includes the result of the transaction and send the trace message to a trace message bus.
公开/授权文献
- US20100318752A1 Event Triggered Memory Mapped Access 公开/授权日:2010-12-16