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    • 22. 发明授权
    • Data transfer control device and electronic instrument
    • 数据传输控制装置和电子仪器
    • US07984321B2
    • 2011-07-19
    • US11812624
    • 2007-06-20
    • Yukinari ShibataNobuyuki SaitoTomonaga HasegawaTakuya Ishida
    • Yukinari ShibataNobuyuki SaitoTomonaga HasegawaTakuya Ishida
    • G06F1/12G06F1/14G06F1/04G06F1/32
    • G06F1/3203H04L25/0272
    • A data transfer control device includes an OUT-transfer transmitter circuit which transmits OUT data by driving a serial signal line, a clock-transfer transmitter circuit which transmits a clock signal CLK by driving a serial signal line, a PLL circuit which generates the clock signal CLK, and a power-down setting circuit which sets a power-down mode. In a first power-down mode, the OUT-transfer transmitter circuit is set to the power-down mode, and the clock-transfer transmitter circuit is set to the power-down mode to stop a system clock signal of a target-side data transfer control device. In a second power-down mode, the OUT-transfer transmitter circuit is set to the power-down mode without setting the clock-transfer transmitter circuit to the power-down mode.
    • 数据传送控制装置包括:通过驱动串行信号线发送OUT数据的OUT传送发送器电路;通过驱动串行信号线发送时钟信号CLK的时钟传送发送器电路;产生时钟信号的PLL电路 CLK,以及设置掉电模式的掉电设置电路。 在第一掉电模式中,OUT传输发射机电路被设置为掉电模式,并且时钟传送发射机电路被设置为掉电模式以停止目标侧数据的系统时钟信号 传输控制装置。 在第二个掉电模式下,OUT传输发射机电路设置为掉电模式,而不将时钟传输发射机电路设置为掉电模式。
    • 30. 发明授权
    • Data transfer control device, electronic equipment, and data transfer control method
    • 数据传输控制装置,电子设备和数据传输控制方法
    • US07051124B2
    • 2006-05-23
    • US10140834
    • 2002-05-09
    • Takuya IshidaYoshiyuki Kamihara
    • Takuya IshidaYoshiyuki Kamihara
    • G06F13/00G06F13/14
    • G06F13/385
    • A buffer is provided with a CBW area (a randomly accessible command storage area) and an EP1 area (data storage area set to FIFO), when a CBW and data are allocated as informations to be transferred through one end point EP1. When a phase switches from a USB command phase (command transport) to a data phase (data transport), the information write area is switched from the CBW area to the EP1 area and OUT data transferred from the host to the end point EP1 is written into the EP1 area. The area switches from the CBW area to the EP1 area on condition that an acknowledgment has returned to the host in the command phase. In case of a toggle missing, area switching does not occur even if ACK is returned.
    • 当CBW和数据被分配为要通过一个终点EP 1传送的信息时,缓冲器具有CBW区域(随机可访问的命令存储区域)和EP 1区域(设置为FIFO的数据存储区域)。 当相位从USB命令阶段(命令传输)切换到数据相位(数据传输)时,信息写入区域从CBW区域切换到EP 1区域,从主机传输到终端EP 1的OUT数据 被写入EP 1区域。 条件是在命令阶段已经返回到主机的情况下,该区域从CBW区域切换到EP 1区域。 在缺少切换的情况下,即使返回ACK也不会发生区域切换。