User's Manual

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USER MANUAL
STM 550 / EMSI ENOCEAN MULTISENSOR FOR IOT APPLICATIONS
© 2020 EnOcean | www.enocean.com F-710-017, V1.0 STM 550 / EMSI User Manual | v1.4 | November 2020 | Page 46/97
8.4.6 Read command
The READ command requires a start page address, and returns the 16 bytes of four
NFC tag pages (where each page is 4 byte in size).
For example, if the specified address is 03h then pages 03h, 04h, 05h, 06h are returned. Spe-
cial conditions apply if the READ command address is near the end of the accessible
memory area.
Figure 27 below shows the read command sequence.
Figure 27 NFC read command sequence
8.4.7 Write command
The WRITE command requires a start page address and returns writes 4 bytes of data into
that page.
Figure 28 below shows the read command sequence.
Figure 28 NFC write command sequence