公开(公告)号：US09436647B2

公开(公告)日：2016-09-06

申请号：US14026375

申请日：2013-09-13

Applicant: STMicroelectronics Asia Pacific Pte. Ltd.

Inventor： Nee Loong Wilson Low ,  Chaochao Zhang

IPC: G06F13/42

CPC classification number: G06F13/4282 ,  G06F13/42 ,  G06F13/4291 ,  G06F2213/0016

Abstract: A start/stop condition detection circuit is coupled to receive the SDA and SCL signals from an IIC Bus. The circuit generates a first signal in response to an edge of the SDA signal and generates an inversion of the first signal as a second signal in response to an opposite edge of the SCL signal. The first and second signals are logically combined to generate an output signal. The particular directions of the edges of the SDA and SCL signals that the circuit is response to determines whether the output signal is indicative of a start condition detection or a stop condition detection.

Abstract translation: 耦合起始/停止条件检测电路以从IIC总线接收SDA和SCL信号。 该电路响应于SDA信号的边缘产生第一信号，并响应于SCL信号的相反边沿而产生作为第二信号的第一信号的反相。 逻辑上组合第一和第二信号以产生输出信号。 电路响应的SDA和SCL信号的边缘的特定方向决定输出信号是指示启动条件检测还是停止条件检测。

公开(公告)号：US20150081936A1

公开(公告)日：2015-03-19

申请号：US14026375

申请日：2013-09-13

Applicant: STMicroelectronics Asia Pacific Pte. Ltd.

Inventor： Nee Loong Wilson Low ,  Chaochao Zhang

IPC: G06F13/38

CPC classification number: G06F13/4282 ,  G06F13/42 ,  G06F13/4291 ,  G06F2213/0016

Abstract: A start/stop condition detection circuit is coupled to receive the SDA and SCL signals from an IIC Bus. The circuit generates a first signal in response to an edge of the SDA signal and generates an inversion of the first signal as a second signal in response to an opposite edge of the SCL signal. The first and second signals are logically combined to generate an output signal. The particular directions of the edges of the SDA and SCL signals that the circuit is response to determines whether the output signal is indicative of a start condition detection or a stop condition detection.

Abstract translation: 耦合起始/停止条件检测电路以从IIC总线接收SDA和SCL信号。 该电路响应于SDA信号的边缘产生第一信号，并响应于SCL信号的相反边沿而产生作为第二信号的第一信号的反相。 逻辑上组合第一和第二信号以产生输出信号。 电路响应的SDA和SCL信号的边缘的特定方向决定输出信号是指示启动条件检测还是停止条件检测。