公开(公告)号：US09553592B1

公开(公告)日：2017-01-24

申请号：US14639197

申请日：2015-03-05

Applicant: Xilinx, Inc.

Inventor： Aman Sewani ,  Fu-Tai An ,  Parag Upadhyaya

IPC: H03K21/00 ,  H03K23/00 ,  H03K25/00 ,  H03K21/02 ,  H03K5/13

CPC classification number: H03K21/02 ,  H03K5/13

Abstract: A circuit for generating a divided clock signal with a configurable phase offset comprises a first latch circuit adapted to receive a clock signal to be divided; a second latch coupled to an output of the first latch circuit and generating a divided output clock signal; and an initialization circuit coupled to the first latch circuit and the second latch circuit, the initialization circuit coupled to receive an initialization signal. The initialization signal determines a phase offset between the divided output clock signal and the clock signal to be divided. A method of generating a divided clock signal is also described.

Abstract translation: 用于产生具有可配置相位偏移的分频时钟信号的电路包括适于接收待分频的时钟信号的第一锁存电路; 第二锁存器，耦合到所述第一锁存电路的输出并产生分频的输出时钟信号; 以及耦合到所述第一锁存电路和所述第二锁存电路的初始化电路，所述初始化电路被耦合以接收初始化信号。 初始化信号决定分割后的输出时钟信号与待分割的时钟信号之间的相位偏移。 还描述了产生分频时钟信号的方法。

公开(公告)号：US09214941B2

公开(公告)日：2015-12-15

申请号：US14014879

申请日：2013-08-30

Applicant: Xilinx, Inc.

Inventor： Aman Sewani ,  Parag Upadhyaya

IPC: H03K19/0185 ,  H03K19/177

CPC classification number: H03K19/018521 ,  H03K19/17744 ,  H03K19/1778 ,  H03K19/17788

Abstract: An input/output circuit implemented in an integrated circuit is described. The input/output circuit comprises an input/output pad and a voltage control circuit coupled to the input/output pad. The voltage control circuit sets a voltage at the input/output pad at a first voltage when the input/output pad is implemented as an input pad and at a second voltage when the input/output pad is implemented as an output pad. Methods of implementing input/output circuits in an integrated circuit are also described.

Abstract translation: 描述了在集成电路中实现的输入/输出电路。 输入/输出电路包括输入/​​输出焊盘和耦合到输入/输出焊盘的电压控制电路。 当输入/输出焊盘被实现为输入焊盘时，电压控制电路以第一电压设置输入/输出焊盘处的电压，并且当输入/输出焊盘被实现为输出焊盘时，电压控制电路将第二电压设置为第一电压。 还描述了在集成电路中实现输入/输出电路的方法。

公开(公告)号：US20150061756A1

公开(公告)日：2015-03-05

申请号：US14014879

申请日：2013-08-30

Applicant: Xilinx, Inc.

Inventor： Aman Sewani ,  Parag Upadhyaya

IPC: H03K19/0185

CPC classification number: H03K19/018521 ,  H03K19/17744 ,  H03K19/1778 ,  H03K19/17788

Abstract: An input/output circuit implemented in an integrated circuit is described. The input/output circuit comprises an input/output pad and a voltage control circuit coupled to the input/output pad. The voltage control circuit sets a voltage at the input/output pad at a first voltage when the input/output pad is implemented as an input pad and at a second voltage when the input/output pad is implemented as an output pad. Methods of implementing input/output circuits in an integrated circuit are also described.

Abstract translation: 描述了在集成电路中实现的输入/输出电路。 输入/输出电路包括输入/​​输出焊盘和耦合到输入/输出焊盘的电压控制电路。 当输入/输出焊盘被实现为输入焊盘时，电压控制电路以第一电压设置输入/输出焊盘处的电压，并且当输入/输出焊盘被实现为输出焊盘时，电压控制电路将第二电压设置为第一电压。 还描述了在集成电路中实现输入/输出电路的方法。