Communication buses

SCK

Serial ClocK

The clock wire in SPI.

How it looks

Real geometry: CORE3588 copper, drawn from our board file (top and bottom layers; this net in amber)

SCK on CORE3588 (amber): net IMU_SCLK.

1The motion sensor U11 at this end...
2...to the computer module socket. This one wire is SCK: the clock: one tick per bit.

SCK is one wire of an SPI bus; the others are MOSI, MISO, CS, INT.