详谈CY7C024-15AXCT芯片解密技术

　　芯谷科技专业承接CY7C024-15AXCT解密等CYPRESS系列IC芯片与单片机解密合作，芯谷科技在CYPRESS解密技术研究领域专门成立了专业的解密研究实验室，长期针对客户需求的各类疑难解密单片机型号进行集中攻关和实验测试，目前已经有多个系列IC芯片、单片机被陆续解密，并已经为相关客户提供了可靠的解密技术服务。
　　Semaphore Operation
　　The CY7C024/024A/0241 and CY7C025/0251 provide eight
　　semaphore latches, which are separate from the dual-port
　　memory locations. Semaphores are used to reserve resources
　　that are shared between the two ports. The state of the
　　semaphore indicates that a resource is in use. For example, if
　　the left port wants to request a given resource, it sets a latch by
　　writing a zero to a semaphore location. The left port then verifies
　　its success in setting the latch by reading it. After writing to the
　　semaphore, SEM
　　or OE must be deasserted for tSOP before
　　attempting to read the semaphore. The semaphore value is
　　available t
　　+ t  after the rising edge of the semaphore
　　SWRD DOE
　　write. If the left port was successful (reads a zero), it assumes
　　control of the shared resource, otherwise (reads a one) it
　　assumes the right port has control and continues to poll the
　　semaphore. When the right side has relinquished control of the
　　semaphore (by writing a one), the left side succeeds in gaining
　　control of the semaphore. If the left side no longer requires the
　　semaphore, a one is written to cancel its request.
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　　Tags: CY7C024-15AXCT解密  IC解密  芯片解密