Visible to Intel only — GUID: iga1401317571503
Ixiasoft
Visible to Intel only — GUID: iga1401317571503
Ixiasoft
5.2.1. Example Configurations
The core block diagram and the SPI core configured as a agent diagram show two possible configurations. In Figure 8 the core provides a agent interface to an off-chip SPI host.
In the SPI core block diagram, the SPI core provides a host interface driving multiple off-chip agent devices. Each agent device in Figure 8 must tristate its miso output whenever its select signal is not asserted.
The ss_n signal is active-low. However, any signal can be inverted inside the FPGA, allowing the agent-select signals to be either active high or active low.