首页>
外国专利>
HIGH SPEED SERIAL TRACE PROTOCOL FOR DEVICE DEBUG
HIGH SPEED SERIAL TRACE PROTOCOL FOR DEVICE DEBUG
展开▼
机译:用于设备调试的高速串行跟踪协议
展开▼
页面导航
摘要
著录项
相似文献
摘要
Tracing of test information from a hardware device for debugging is formatted for transmission via a high-speed serial protocol. Data from various components in the hardware device is transmitted to an external test board using high speed serial ports. The number of serial ports needed for data transfer is significantly less than a complimentary parallel port configuration. Additional functional blocks on the chip process the data for high speed serial output. The functional blocks format information into subchannels, arbitrate data, append protocol, perform data integrity checks, and serialize the data. The additional blocks built on the chip to support the serial ports consume less chip space than the space consumed by the number of parallel ports required to provide equivalent data transfer rates. The process operates in near real time and may use time stamping to correlate and reconstruct data from different information sources. An input port receives data from the external test component to modify registers or memory, set break points, modify hardware status, communicate with processors, or modify other operating conditions to debug the hardware device.
展开▼