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    • 2. 发明授权
    • Byte alignment for serial data receiver
    • 串行数据接收器的字节对齐
    • US07046174B1
    • 2006-05-16
    • US11147757
    • 2005-06-07
    • Henry Y. LuiChong H. LeeRakesh PatelRamanand VenkataJohn LamVinson ChanMalik Kabani
    • Henry Y. LuiChong H. LeeRakesh PatelRamanand VenkataJohn LamVinson ChanMalik Kabani
    • H03M9/00
    • H03M9/00H03K5/135H04L7/0331
    • A serial data interface for a programmable logic device includes a receiver that deserializes a plurality of channels of received serial data using a recovered clock signal or a phase-aligned received clock signal. Byte boundaries are initially assigned, perhaps arbitrarily, and the deserialized signal is sent to the programmable logic core of the programmable logic device. Programmable logic in the core monitors the byte boundaries on each channel based on the criteria, including any user-defined parameters, programmed into the logic. If a boundary misalignment is detected, a signal is send from the core to bit-slipping circuitry on that channel of the interface to adjust the boundary. The signal could instruct the bit-slipping circuitry to adjust the boundary by the number of bits needed to correct the alignment. Alternatively, the bit-slipping circuitry could operate iteratively, adjusting the boundary by one bit, each cycle, until the signal stops indicating misalignment.
    • 用于可编程逻辑器件的串行数据接口包括使用恢复的时钟信号或相位对准的接收时钟信号对接收的串行数据的多个信道反串行的接收器。 字节边界最初可以任意分配,反序列化信号被发送到可编程逻辑器件的可编程逻辑核心。 内核中的可编程逻辑基于标准(包括任何用户定义的参数)来监视每个通道上的字节边界,编程到逻辑中。 如果检测到边界未对准,则在该接口的该通道上将信号从核心发送到位滑动电路以调整边界。 信号可以指示位滑动电路将边界调整校正对准所需的位数。 或者,位打滑电路可以迭代地操作,每个周期将边界调整一个位,直到信号停止指示未对准。
    • 3. 发明授权
    • Byte alignment for serial data receiver
    • 串行数据接收器的字节对齐
    • US06724328B1
    • 2004-04-20
    • US10454626
    • 2003-06-03
    • Henry Y. LuiChong H. LeeRakesh PatelRamanand VenkataJohn LamVinson ChanMalik Kabani
    • Henry Y. LuiChong H. LeeRakesh PatelRamanand VenkataJohn LamVinson ChanMalik Kabani
    • H03M900
    • H04L7/0054H03M9/00
    • A serial data interface for a programmable logic device includes a receiver that deserializes a plurality of channels of received serial data using a recovered clock signal or a phase-aligned received clock signal. Byte boundaries are initially assigned, perhaps arbitrarily, and the deserialized signal is sent to the programmable logic core of the programmable logic device. Programmable logic in the core monitors the byte boundaries on each channel based on the criteria, including any user-defined parameters, programmed into the logic. If a boundary misalignment is detected, a signal is send from the core to bit-slipping circuitry on that channel of the interface to adjust the boundary. The signal could instruct the bit-slipping circuitry to adjust the boundary by the number of bits needed to correct the alignment. Alternatively, the bit-slipping circuitry could operate iteratively, adjusting the boundary by one bit, each cycle, until the signal stops indicating misalignment.
    • 用于可编程逻辑器件的串行数据接口包括使用恢复的时钟信号或相位对准的接收时钟信号对接收的串行数据的多个信道反串行的接收器。 字节边界最初可以任意分配,反序列化信号被发送到可编程逻辑器件的可编程逻辑核心。 内核中的可编程逻辑基于标准(包括任何用户定义的参数)来监视每个通道上的字节边界,编程到逻辑中。 如果检测到边界未对准,则在该接口的该通道上将信号从核心发送到位滑动电路以调整边界。 信号可以指示位滑动电路将边界调整校正对准所需的位数。 或者,位打滑电路可以迭代地操作,每个周期将边界调整一个位,直到信号停止指示未对准。
    • 4. 发明授权
    • Programmable logic resource with data transfer synchronization
    • 可编程逻辑资源与数据传输同步
    • US07003423B1
    • 2006-02-21
    • US10741593
    • 2003-12-18
    • Malik KabaniHenry Lui
    • Malik KabaniHenry Lui
    • G01R27/28G01M19/00G06F1/04
    • G06F1/24G06F1/12
    • A more time-efficient and area-efficient approach is provided to synchronize the transfer of data into programmable logic resources. A programmable logic resource core clock and a reset signal are routed to a reset register that controls the reset of a dynamic phase alignment circuit and a data realigner. The dynamic phase alignment circuit includes a phase-locked loop circuit, a J counter, and a deserializer. When the output signal of the reset register transitions from logic 1 to logic 0, the J counter begins to count and sets an enable signal accordingly. The enable signal, which controls the output of synchronized parallel data from the deserializer, is therefore phase associated with the programmable logic resource core clock. The synchronized parallel data is input to a data realigner which outputs the data based on the programmable logic resource core clock for input to the programmable logic resource core circuitry.
    • 提供了一种更节省时间和面积效率的方法来同步数据传输到可编程逻辑资源。 可编程逻辑资源核心时钟和复位信号被路由到控制动态相位对准电路和数据重新定标器的复位的复位寄存器。 动态相位对准电路包括锁相环电路,J计数器和解串器。 当复位寄存器的输出信号从逻辑1转换到逻辑0时,J计数器开始计数并相应地设置使能信号。 因此,控制来自解串器的同步并行数据的输出的使能信号与可编程逻辑资源核心时钟相关。 同步并行数据被输入到数据重新定标器,该数据重新定标器基于可编程逻辑资源核心时钟输出数据,用于输入到可编程逻辑资源核心电路。
    • 6. 发明授权
    • Byte alignment for serial data receiver
    • 串行数据接收器的字节对齐
    • US06970117B1
    • 2005-11-29
    • US10789406
    • 2004-02-26
    • Henry Y. LuiChong H. LeeRakesh PatelRamanand VenkataJohn LamVinson ChanMalik Kabani
    • Henry Y. LuiChong H. LeeRakesh PatelRamanand VenkataJohn LamVinson ChanMalik Kabani
    • H03M9/00H04L7/02
    • H04L7/0054H03M9/00
    • A serial data interface for a programmable logic device includes a receiver that deserializes a plurality of channels of received serial data using a recovered clock signal or a phase-aligned received clock signal. Byte boundaries are initially assigned, perhaps arbitrarily, and the deserialized signal is sent to the programmable logic core of the programmable logic device. Programmable logic in the core monitors the byte boundaries on each channel based on the criteria, including any user-defined parameters, programmed into the logic. If a boundary misalignment is detected, a signal is send from the core to bit-slipping circuitry on that channel of the interface to adjust the boundary. The signal could instruct the bit-slipping circuitry to adjust the boundary by the number of bits needed to correct the alignment. Alternatively, the bit-slipping circuitry could operate iteratively, adjusting the boundary by one bit, each cycle, until the signal stops indicating misalignment.
    • 用于可编程逻辑器件的串行数据接口包括使用恢复的时钟信号或相位对准的接收时钟信号对接收的串行数据的多个信道反串行的接收器。 字节边界最初可以任意分配,反序列化信号被发送到可编程逻辑器件的可编程逻辑核心。 内核中的可编程逻辑基于标准(包括任何用户定义的参数)来监视每个通道上的字节边界,编程到逻辑中。 如果检测到边界未对准,则在该接口的该通道上将信号从核心发送到位滑动电路以调整边界。 信号可以指示位滑动电路将边界调整校正对准所需的位数。 或者,位打滑电路可以迭代地操作,每个周期将边界调整一个位,直到信号停止指示未对准。