ZHCSJU5B February 2019 – May 2021 CC3135
PRODUCTION DATA
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 8-17 shows the SPI host interface.
Table 8-23 lists the SPI host interface pins.
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) |