Reconfigurable memory interface circuit to support a built-in memory scan chain
    99.
    发明授权
    Reconfigurable memory interface circuit to support a built-in memory scan chain 有权
    可重构存储器接口电路,支持内置的内存扫描链

    公开(公告)号:US09188642B2

    公开(公告)日:2015-11-17

    申请号:US13975277

    申请日:2013-08-23

    Abstract: A method of operating an apparatus in a functional mode and an ATPG scan mode and an apparatus for use in a functional mode and an ATPG scan mode are provided. The apparatus includes a set of latches including a first latch and a second latch. The first latch is operated as a master latch and the second latch is operated as a master latch in the functional mode. The first latch is operated as a master latch of a flip-flop and the second latch is operated as a slave latch of the flip-flop in the ATPG scan mode. In one configuration, the apparatus includes a plurality of latches including at least the first and second latches, an output of each of the latches is coupled to a digital circuit, the apparatus includes a plurality of functional inputs, and each of the functional inputs is input to the digital circuit.

    Abstract translation: 提供了在功能模式和ATPG扫描模式下操作装置的方法以及用于功能模式和ATPG扫描模式的装置。 该装置包括一组锁存器,其包括第一锁存器和第二锁存器。 第一个锁存器作为主锁存器操作,第二个锁存器在功能模式下作为主锁存器运行。 第一个锁存器作为触发器的主锁存器操作,第二个锁存器在ATPG扫描模式下作为触发器的从锁存器操作。 在一种配置中,该装置包括至少包括第一和第二锁存器的多个锁存器,每个锁存器的输出耦合到数字电路,该装置包括多个功能输入,并且每个功能输入是 输入到数字电路。

    Method for performing built-in self-tests and electronic circuit
    100.
    发明申请
    Method for performing built-in self-tests and electronic circuit 有权
    执行内置自检和电子电路的方法

    公开(公告)号:US20150162097A1

    公开(公告)日:2015-06-11

    申请号:US14527352

    申请日:2014-10-29

    Abstract: The invention relates to a method for performing an array built-in self-test (ABIST) on an electronic circuit (100), the electronic circuit (100) comprising a memory (110) with at least two memory arrays (111-115) and at least two array built-in self-test engines (116-120), wherein each automatic built-in self-test engine (116-120) is associated with a different memory array (111-115) and wherein each array built-in self-test engine (116-120) is associated with a programmable delay unit (DU1-DU5), the method comprising the following steps:determine at least one delay value (dn), the delay value (dn) corresponding to an array built-in self-test engine (116-120) and the delay value (dn) depending on the execution time (tdn) for testing the memory array (111-115) associated with the array built-in self-test engine (116-120); provide the at least one delay value (dn) to the programmable delay unit (DU1-DU5); and delay the start of the array built-in self-test engine (116-120) depending on the respective delay value (dn).

    Abstract translation: 本发明涉及一种用于在电子电路(100)上执行阵列内置自检(ABIST)的方法,所述电子电路(100)包括具有至少两个存储器阵列(111-115)的存储器(110) 和至少两个阵列内置自检引擎(116-120),其中每个自动内置自检引擎(116-120)与不同的存储器阵列(111-115)相关联,并且其中每个阵列被构建 - 自检引擎(116-120)与可编程延迟单元(DU1-DU5)相关联,所述方法包括以下步骤:确定至少一个延迟值(dn),对应于 阵列内置自检引擎(116-120)和延迟值(dn),这取决于用于测试与阵列内置自检引擎相关联的存储器阵列(111-115)的执行时间(tdn) 116-120); 向所述可编程延迟单元(DU1-DU5)提供所述至少一个延迟值(dn); 并根据相应的延迟值(dn)延迟阵列内置自检引擎(116-120)的启动。

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