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    • 1. 发明申请
    • Integrated circuit device having send/receive macro for serial transfer bus
    • 具有用于串行传输总线的发送/接收宏的集成电路装置
    • US20050091427A1
    • 2005-04-28
    • US10814282
    • 2004-04-01
    • Toshikazu YoshidaMasaaki TaniKenji FuruyaAkio HaraTomoki Kurata
    • Toshikazu YoshidaMasaaki TaniKenji FuruyaAkio HaraTomoki Kurata
    • G06F13/38G06F3/00G06F9/46G06F9/48G06F13/42
    • G06F13/4286
    • An integrated circuit device having a send/receive macro for serially transferring addresses and data to or from an external device via a serial transfer bus, the integrated circuit device includes: a CPU for performing predetermined processing. The send/receive macro includes a send/receive buffer accessed by the CPU, for storing a plurality of units of data to be transmitted or received over the serial transfer bus; an acknowledge detection unit for detecting a data acknowledge signal transmitted from a receiving device in response to transmission of predetermined units of data; and a data send unit for transmitting data stored in the send/receive buffer, in response to detection of the data acknowledge signal by the acknowledge detection unit, without generating any interrupt to the CPU. And the acknowledge signal detection unit generates a data acknowledge signal non-detection interrupt to the CPU if the acknowledge detection unit does not detect a data acknowledge signal transmitted from the receiving device in response to transmission of the predetermined units of data.
    • 一种集成电路装置,其具有用于经由串行传输总线将地址和数据串行地传送到外部设备的发送/接收宏,所述集成电路装置包括:执行预定处理的CPU。 发送/接收宏包括由CPU访问的发送/接收缓冲器,用于存储要通过串行传输总线发送或接收的多个数据单元; 确认检测单元,用于响应于预定数据单元的传输来检测从接收设备发送的数据确认信号; 以及用于响应于确认检测单元检测到数据确认信号而发送存储在发送/接收缓冲器中的数据的数据发送单元,而不产生对CPU的任何中断。 如果应答检测单元响应于预定数据单元的传输,未检测到从接收设备发送的数据确认信号,则确认信号检测单元向CPU产生数据确认信号不检测中断。
    • 2. 发明申请
    • Integrated circuit device having send/receive macro for serial transfer bus
    • 具有用于串行传输总线的发送/接收宏的集成电路装置
    • US20080086578A1
    • 2008-04-10
    • US11984687
    • 2007-11-20
    • Toshikazu YoshidaMasaaki TaniKenji FuruyaAkio HaraTomoki Kurata
    • Toshikazu YoshidaMasaaki TaniKenji FuruyaAkio HaraTomoki Kurata
    • G06F3/00
    • G06F13/4286
    • An integrated circuit device having a send/receive macro for serially transferring addresses and data to or from an external device via a serial transfer bus, the integrated circuit device includes: a CPU for performing predetermined processing. The send/receive macro includes a send/receive buffer accessed by the CPU, for storing a plurality of units of data to be transmitted or received over the serial transfer bus; an acknowledge detection unit for detecting a data acknowledge signal transmitted from a receiving device in response to transmission of predetermined units of data; and a data send unit for transmitting data stored in the send/receive buffer, in response to detection of the data acknowledge signal by the acknowledge detection unit, without generating any interrupt to the CPU. And the acknowledge signal detection unit generates a data acknowledge signal non-detection interrupt to the CPU if the acknowledge detection unit does not detect a data acknowledge signal transmitted from the receiving device in response to transmission of the predetermined units of data.
    • 一种集成电路装置,其具有用于经由串行传输总线将地址和数据串行地传送到外部设备的发送/接收宏,所述集成电路装置包括:执行预定处理的CPU。 发送/接收宏包括由CPU访问的发送/接收缓冲器,用于存储要通过串行传输总线发送或接收的多个数据单元; 确认检测单元,用于响应于预定数据单元的传输来检测从接收设备发送的数据确认信号; 以及用于响应于确认检测单元检测到数据确认信号而发送存储在发送/接收缓冲器中的数据的数据发送单元,而不产生对CPU的任何中断。 如果应答检测单元响应于预定数据单元的传输,未检测到从接收设备发送的数据确认信号,则确认信号检测单元向CPU产生数据确认信号不检测中断。
    • 9. 发明申请
    • Data sampling circuit and data sampling method
    • 数据采样电路和数据采样方法
    • US20080273628A1
    • 2008-11-06
    • US11976811
    • 2007-10-29
    • Tomoki Kurata
    • Tomoki Kurata
    • H03D1/00
    • H04L25/4902G08C23/04
    • A data sampling circuit and a data sampling method for performing sampling at a frequency lower than a carrier frequency. An infrared communication signal converted to an electric signal is input to a data sampling circuit, and a signal in a band lower than or equal to the carrier signal frequency is extracted by an LPF. After the communication signal is input from the LPF, a detection information retention block specifies detection information indicating that the communication signal has been detected and retains the detection information. The detection information in a previous sampling cycle and the detection information in the current sampling cycle are compared to determine whether the communication signal has been input. A measurement block measures a period in which the input of the communication signal continues or a period in which the communication signal is not input, in accordance with the detection result.
    • 一种用于以低于载波频率进行采样的数据采样电路和数据采样方法。 转换为电信号的红外通信信号被输入到数据采样电路,并且通过LPF提取小于或等于载波信号频率的频带中的信号。 在从LPF输入通信信号之后,检测信息保持块指定指示已经检测到通信信号的检测信息,并保留检测信息。 比较先前采样周期中的检测信息和当前采样周期中的检测信息,以确定通信信号是否已被输入。 测量块根据检测结果测量通信信号的输入持续的时段或不输入通信信号的周期。