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ZIOL2201 数据表(PDF) 22 Page - Renesas Technology Corp |
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ZIOL2201 数据表(HTML) 22 Page - Renesas Technology Corp |
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22 / 92 page ![]() ZIOL2xxx Datasheet © 2016 Integrated Device Technology, Inc. 22 April 26, 2016 Figure 3.6 Typical IO-Link Device Configuration with HS driver only 1 3 2 4 Master Device [ C/Q ] sink [ L+ ] High-Side Driver only [ L- ] Table 3.4 Sink Mode Configuration in Detail Register[2][1:0] Register[4][1:0] Mode Sink enabling Remark 00 n.a. Sink steady disabled OFF 01 Device Mode 1) Sink steady disabled Typical application mode for the IO-Link channel: device: no sink master: sink enabled contrary to the corresponding driver enable signal Master Mode 2) Sink enabled if: • TX_EN/SPI_CLK = low (COM) • AUX_EN = low (AUX) 10 n.a. Sink enabled if: • TX_EN/SPI_CLK = low (COM) • AUX_EN = low (AUX) Enabling contrary to the driver enable signal; sink is only enabled while the driver is disabled. (helps to reduce the system’s power dissipation) 11 n.a. steady enabled ON 1) MASTER_MODE flag (configuration register MASTER_SENS_CTRL[7] is cleared (=0). 2) MASTER_MODE flag (configuration register MASTER_SENS_CTRL[7] is set (=1). 3.3. System Control 3.3.1. General The system control provides device configuration, status signaling and SPI data transfer functionality. Implemented are several register areas which contain configuration data and which provide status information. In order to gain read/write access to these register areas, the standard serial peripheral interface (SPI) is implemented. Since the pin count of the package is limited to 24 pins, the SPI specific pins (CLK, MOSI, and MISO) are multiplexed with IO-pins of the COM driver. A dedicated pin SPI_EN_L is used to switch between SPI |
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