首页>
外国专利>
PCI bridge device configured for using JTAG scan for writing internal control registers and outputting debug state
PCI bridge device configured for using JTAG scan for writing internal control registers and outputting debug state
展开▼
机译:配置为使用JTAG扫描来写入内部控制寄存器并输出调试状态的PCI桥设备
展开▼
页面导航
摘要
著录项
相似文献
摘要
An integrated device (e.g., an integrated PCI bridge device), having configuration registers for storing configuration values, device logic for generating internal state values based on the configuration values, and a JTAG interface configured for receiving a serial input stream and outputting a serial output stream, further includes write logic and debug read logic. The write logic is configured for writing selected portions of the serial input stream into respective selected ones of the configuration registers, based on a detected input indicating a JTAG-based override. The debug read logic is configured, in response to a detected debug mode, for outputting selected internal state values for the serial output stream, based on selection values from the serial input stream and having been stored in a prescribed at least one of the selected configuration registers.
展开▼