Visible to Intel only — GUID: iga1401317571800
Ixiasoft
Visible to Intel only — GUID: iga1401317571800
Ixiasoft
5.2.2. Transmitter Logic
The shift register and the txdata register provide double buffering during data transmission. A new value can be written into the txdata register while the previous data is being shifted out of the shift register. The transmitter logic automatically transfers the txdata register to the shift register whenever a serial shift operation is not currently in process.
In host mode, the transmit shift register directly feeds the mosi output. In agent mode, the transmit shift register directly feeds the miso output. Data shifts out LSB first or MSB first, depending on the configuration of the SPI core.