Description: SPI (Serial Peripheral Interface, serial peripheral interface) is a synchronous serial data transmission standard put forward by Motorola company, is a high-speed, full duplex, synchronous communication bus, is widely used in many devices.
SPI related abbreviations
SS: Slave Select, selected from the device, chip select.
CKPOL (Clock, Polarity) = CPOL = POL = Polarity = (clock) polarity
CKPHA (Clock, Phase) = CPHA = PHA = Phase = (clock) phase
SCK = SCLK = SCL = SPI clock (Serial, Clock)
Edge = edge, instant clock, level change time, i.e. rising edge (rising, edge) or falling edge (falling, edge).
For a clock cycle, there are two edge, respectively:
Leading edge = front edge = first edge, for start voltage is 1, then 1 is 0, for start voltage is 0, then 0 is 1;
Trailing = edge = second after an edge edge, the start voltage is 1, it is 0 to 1 of the time (that is, after the first 1 to 0, it may be behind the 0 to 1), the start voltage is 0, it is 1 to 0 times;
To Search:
File list (Check if you may need any files):
SPI_master.v
spi_master_ref.v
spi_master_simple.v
SPI_master_test.v
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