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RFM23 Datasheet, PDF (15/152 Pages) – | |||
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RFM23
Figure 3. SPI TimingâREAD Mode
The SPI interface contains a burst read/write mode which will allows for reading/writing sequential registers without
having to re-send the SPI address. When the nSEL bit is held low while continuing to send SCLK pulses, the SPI
interface will automatically increment the ADDR and read from/write to the next address. An SPI burst write
transaction is demonstrated in Figure 4 and burst read in Figure 3. As long as nSEL is held low, input data will be
latched into the RFM23 every eight SCLK cycles. A burst read transaction is also demonstrated in Figure 5.
Figure 4. SPI TimingâBurst Write Mode
Figure 5. SPI TimingâBurst Read Mode
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