PAW3212DB-TJDT Datasheet, PDF (14/31 Pages) Pixart Imaging Inc. – ULTRA LOW POWER WIRELESS MOUSE SENSOR

PAW3212DB-TJDT
Figure 13. NCS vs SCLK Timing Requirement
Write Operation
A write operation, defined as data is going from the host controller to the sensor, is always initiated by the host controller and consists of two
bytes. The first byte contains the address (seven bits) and has a “1” as its MSB to indicate data direction. The second byte contains the data.
The communication is synchronized by SCLK. The host controller changes SDIO on the falling edges of SCLK and the sensor reads SDIO
on the rising edges of SCLK.
Figure 14. Write Operation
SCLK
SDIO
t t _SETUP-WR
HOLD-WR
Figure 15. SDIO setup and hold time during write operation
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