Invention Grant
- Patent Title: Sequential logic circuit and method of providing setup timing violation tolerance therefor
- Patent Title (中): 顺序逻辑电路和提供设置时序违规容限的方法
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Application No.: US14398868Application Date: 2012-05-30
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Publication No.: US09112489B2Publication Date: 2015-08-18
- Inventor: Michael Priel , Leonid Fleshel , Anton Rozen
- Applicant: Michael Priel , Leonid Fleshel , Anton Rozen
- Applicant Address: US TX Austin
- Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee Address: US TX Austin
- International Application: PCT/IB2012/052700 WO 20120530
- International Announcement: WO2013/179089 WO 20131205
- Main IPC: H03K19/00
- IPC: H03K19/00 ; H03K19/003 ; H03K19/173 ; H03K5/135

Abstract:
A sequential logic circuit comprising a first latch component comprising a data input arranged to receive an input signal, a data output arranged to output a current logical state of the first latch component and a clock input arranged to receive a clock signal; the first latch component being arranged to comprise a transparent state upon the clock signal received thereby comprising a first logical state, and to comprise a latched state upon the clock signal received thereby comprising a second logical state, and a second latch component comprising a data input arranged to receive an input signal, a data output operably coupled to an output of the sequential logic circuit and arranged to output a current state of the second latch component and a clock input arranged to receive a clock signal; the second latch component being arranged to comprise a transparent state upon the clock signal received thereby comprising a second logical state, and to comprise a latched state upon the clock signal received thereby comprising a first logical state. The sequential logic circuit is arranged to operate in at least a first operating mode in which the data input of the first latch component and the data input of the second latch component are operably coupled to a first input of the sequential logic circuit, and in which the clock signals provided to the first and second latch components are such that a transition of the second latch component from a transparent state to a latched state is delayed relative to a corresponding transition of the first latch component from a transparent state to a latched state for a time period for receiving late data.
Public/Granted literature
- US20150091607A1 SEQUENTIAL LOGIC CIRCUIT AND METHOD OF PROVIDING SETUP TIMING VIOLATION TOLERANCE THEREFOR Public/Granted day:2015-04-02
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