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    • 1. 发明授权
    • Secure power-on reset engine
    • 安全上电复位引擎
    • US07895426B2
    • 2011-02-22
    • US11844449
    • 2007-08-24
    • Ingemar HolmRalph C. KoesterCedric LichtenauThomas PfluegerMack W. Riley
    • Ingemar HolmRalph C. KoesterCedric LichtenauThomas PfluegerMack W. Riley
    • G06F9/00G06F13/00H03L7/00
    • G06F21/575G06F21/71
    • A secure Power-on Reset (POR) engine is provided, inside a processor chip, which guarantees a secure initialization of the chip to enable secure code execution. External access to chip resources is limited to a very few targeted settings that do not compromise the chip security. The POR engine comprises a small state machine that runs through a predefined sequence coded in persistent memory contained in the processor chip. The state machine initializes the chip and allows external access from an external processor to only some scan chains of the processor chip in order to configure interfaces, and the like, without compromising the chip security. The state machine also manages the encryption keys that are used to verify that the code, fetched by the processor to complete the initialization in software, is not modified by a third party.
    • 在处理器芯片内提供安全的上电复位(POR)引擎,保证了芯片的安全初始化,从而实现安全的代码执行。 对芯片资源的外部访问仅限于不损害芯片安全性的极少量目标设置。 POR引擎包括一个小型状态机,其运行在包含在处理器芯片中的持久存储器中编码的预定义序列。 状态机初始化芯片,并且允许从外部处理器到处理器芯片的一些扫描链的外部访问,以便配置接口等,而不损害芯片的安全性。 状态机还管理加密密钥,用于验证由处理器获取的以软件完成初始化的代码不被第三方修改。
    • 3. 发明申请
    • System and method for validating chip configuration data
    • 验证芯片配置数据的系统和方法
    • US20070094420A1
    • 2007-04-26
    • US11252533
    • 2005-10-18
    • Ingemar HolmRalph KoesterJohn LibertyMack Riley
    • Ingemar HolmRalph KoesterJohn LibertyMack Riley
    • G06F3/00
    • G06F21/71
    • A system and method for verifying configuration data for configuring a microprocessor or system-on-a-chip (SoC) are provided. With the system and method, during initialization, configuration data is shifted into the microprocessor or SoC through a configuration input. The configuration data is shifted to all of the on-chip processor units to provide initial settings for configuration latches in the design. While the configuration data is being shifted to the on-chip processor units, a copy of the configuration data is also stored in a local storage of a test control unit. A private interface is provided between the test control unit and the processor units. Via the private interface, a processor unit receives the current configuration data for the processor units. The current configuration data is compared against the original configuration data stored in the test control unit to verify the current configuration of the processor units.
    • 提供了一种用于验证用于配置微处理器或片上系统(SoC)的配置数据的系统和方法。 利用系统和方法,在初始化期间,配置数据通过配置输入移入微处理器或SoC。 配置数据转移到所有片上处理器单元,以便为设计中的配置锁存器提供初始设置。 当配置数据被转移到片上处理器单元时,配置数据的副本也存储在测试控制单元的本地存储器中。 在测试控制单元和处理器单元之间提供专用接口。 通过专用接口,处理器单元接收处理器单元的当前配置数据。 将当前配置数据与存储在测试控制单元中的原始配置数据进行比较,以验证处理器单元的当前配置。
    • 6. 发明授权
    • Validating chip configuration data
    • 验证芯片配置数据
    • US07496692B2
    • 2009-02-24
    • US11252533
    • 2005-10-18
    • Ingemar HolmRalph C. KoesterJohn S. LibertyMack W. Riley
    • Ingemar HolmRalph C. KoesterJohn S. LibertyMack W. Riley
    • G06F21/02
    • G06F21/71
    • Verifying configuration data for configuring a microprocessor or system-on-a-chip (SoC) is provided. During initialization, configuration data is shifted into the microprocessor or SoC through a configuration input. The configuration data is shifted to all of the on-chip processor units to provide initial settings for configuration latches in the design. While the configuration data is being shifted to the on-chip processor units, a copy of the configuration data is also stored in a local storage of a test control unit. A private interface is provided between the test control unit and the processor units. Via the private interface, a processor unit receives the current configuration data for the processor units. The current configuration data is compared against the original configuration data stored in the test control unit to verify the current configuration of the processor units.
    • 提供了配置微处理器或片上系统(SoC)的配置数据。 在初始化期间,配置数据通过配置输入移入微处理器或SoC。 配置数据转移到所有片上处理器单元,以便为设计中的配置锁存器提供初始设置。 当配置数据被转移到片上处理器单元时,配置数据的副本也存储在测试控制单元的本地存储器中。 在测试控制单元和处理器单元之间提供专用接口。 通过专用接口,处理器单元接收处理器单元的当前配置数据。 将当前配置数据与存储在测试控制单元中的原始配置数据进行比较,以验证处理器单元的当前配置。
    • 7. 发明授权
    • High speed on-chip serial link apparatus and method
    • 高速片上串行连接装置及方法
    • US07430624B2
    • 2008-09-30
    • US11242676
    • 2005-10-04
    • Tilman GloeklerIngemar HolmRalph C. KoesterMack W. Riley
    • Tilman GloeklerIngemar HolmRalph C. KoesterMack W. Riley
    • G06F13/12G06F13/00
    • G06F13/4054
    • A converter apparatus and method are provided that transforms an external low speed industry standard interface into an on-chip high speed serial link (HSSL). The converter of the present invention is preferably placed in close vicinity of the external interface. The HSSL operates at the system clock speed and, as a result, the HSSL interface signals can be readily treated like any other timed signal facilitating the physical design process. Because synchronization is performed once in the converter near the external interface and the signals along the HSSL of the present invention may be treated like any other timed signal, the need for interface units in each processing element of the chip to perform synchronization is eliminated. Thus, the complexity and silicon area used by the present invention is reduced. The converter enables the maximum speed for the serial interface, which is crucial in power-on-reset, manufacturing testing, and chip debugging.
    • 提供了一种将外部低速工业标准接口转换为片上高速串行链路(HSSL)的转换器装置和方法。 本发明的转换器优选放置在外部接口附近。 HSSL以系统时钟速度运行,因此,HSSL接口信号可以像任何其他定时信号一样轻松处理,便于物理设计过程。 因为在外部接口附近的转换器中执行同步一次,并且沿着本发明的HSSL的信号可以像任何其他定时信号一样被处理,因此消除了对芯片的每个处理元件中的接口单元进行同步的需要。 因此,减少了本发明使用的复杂性和硅面积。 该转换器可实现串行接口的最大速度,这在上电复位,制造测试和芯片调试方面至关重要。
    • 9. 发明申请
    • SECURE POWER-ON RESET ENGINE
    • 安全上电复位发动机
    • US20090055637A1
    • 2009-02-26
    • US11844449
    • 2007-08-24
    • Ingemar HolmRalph C. KoesterCedric LichtenauThomas PfluegerMack W. Riley
    • Ingemar HolmRalph C. KoesterCedric LichtenauThomas PfluegerMack W. Riley
    • G06F15/177
    • G06F21/575G06F21/71
    • A secure Power-on Reset (POR) engine is provided, inside a processor chip, which guarantees a secure initialization of the chip to enable secure code execution. External access to chip resources is limited to a very few targeted settings that do not compromise the chip security. The POR engine comprises a small state machine that runs through a predefined sequence coded in persistent memory contained in the processor chip. The state machine initializes the chip and allows external access from an external processor to only some scan chains of the processor chip in order to configure interfaces, and the like, without compromising the chip security. The state machine also manages the encryption keys that are used to verify that the code, fetched by the processor to complete the initialization in software, is not modified by a third party.
    • 在处理器芯片内提供安全的上电复位(POR)引擎,保证了芯片的安全初始化,从而实现安全的代码执行。 对芯片资源的外部访问仅限于不损害芯片安全性的极少量目标设置。 POR引擎包括一个小型状态机,其运行在包含在处理器芯片中的持久存储器中编码的预定义序列。 状态机初始化芯片,并且允许从外部处理器到处理器芯片的一些扫描链的外部访问,以便配置接口等,而不损害芯片的安全性。 状态机还管理加密密钥,用于验证由处理器获取的以软件完成初始化的代码不被第三方修改。