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CC3135 Datasheet(PDF) 40 Page - Texas Instruments |
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CC3135 Datasheet(HTML) 40 Page - Texas Instruments |
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40 / 78 page 
MCU HOST_SPI_CLK HOST_SPI_nCS HOST_SPI_MISO HOST_SPI_MOSI HOST_INTR SPI_CLK SPI_nCS SPI_MISO SPI_MOSI INTR GPIO nHIB CC3135R (slave) 40 CC3135 SWAS037 – JANUARY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: CC3135 Specifications Copyright © 2019, Texas Instruments Incorporated 5.18.2 SPI Host Interface The device interfaces to an external host using the SPI interface. The CC3135 device can interrupt the host using the HOST_INTR line to initiate the data transfer over the interface. The SPI host interface can work up to a speed of 20 MHz. Figure 5-17 shows the SPI host interface. Figure 5-17. SPI Host Interface Table 5-23 lists the SPI host interface pins. Table 5-23. SPI Host Interface PIN NAME DESCRIPTION HOST_SPI_CLK Clock (up to 20 MHz) from MCU host to CC3135 device HOST_SPI_nCS CS (active low) signal from MCU host to CC3135 device HOST_SPI_MOSI Data from MCU host to CC3135 device HOST_INTR Interrupt from CC3135 device to MCU host HOST_SPI_MISO Data from CC3135 device to MCU host nHIB Active-low signal that commands the CC3135 device to enter hibernate mode (lowest power state) |
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