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NT3H2211W0FHKH Datasheet, PDF (43/77 Pages) NXP Semiconductors – NTAG I2C plus, NFC Forum Type 2 Tag compliant IC with I2C interface
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9.8 WRITE and READ register operation
In order to modify or read the session register bytes (see Table 14), NTAG I2C plus requires the WRITE and READ register
operation (see Figure 19).
Write:
Host
Start
7 bits SA and ‘0’
MEMA
REGA
MASK
REGDAT
Stop
Tag
A
A
A
A
A
Read:
Host
Start
7 bits SA and ‘0’
MEMA
REGA
Stop
Tag
A
A
A
Fig 19. WRITE and READ register operation
Start 7 bits SA and ‘1’
A Stop
A REGDAT
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