JAJSKM1C october 2019 – september 2021 UCC5870-Q1
PRODUCTION DATA
The Independent Slave configuration is shown in Figure 7-38. In this mode, the CLK input, SDI input, and SDO outputs for all devices on the SPI bus are shared. The MCU drives the nCS input for the device that is to be addressed. The drawback to this approach is that a separate GPIO for each driver in the system (up to 12 for dual inverter systems) is required of the MCU, but it does allow random access to any device in the system. The message frame is shown in Figure 7-39