NT3H2211W0FHKH Datasheet, PDF (28/77 Pages) NXP Semiconductors – NTAG I2C plus, NFC Forum Type 2 Tag compliant IC with I2C interface

NXP Semiconductors
NT3H2111/NT3H2211
NFC Forum Type 2 Tag compliant IC with I²C interface
Table 13. …continuedConfiguration bytes
Bit Field
Access Access Default Description
via NFC via I²C values
Configuration register: LAST_NDEF_BLOCK
7-0 LAST_NDEF_BLOCK
R&W R&W 00h
I²C block address of I²C block, which contains last
byte(s) of stored NDEF message. An NFC read of the
last page of this I²C block sets the register
NDEF_DATA_READ to 1b and triggers field detection
pin if FD_OFF is set to 10b.
Valid range starts
from 01h (NFC page 04h)
up to 37h (NFC page DCh) for NTAG I²C plus 1k
or up to 7Fh (NFC page FCh on Sector 1) for NTAG
I²C plus 2k.
Configuration register: SRAM_MIRROR_BLOCK
7-0 SRAM_MIRROR_BLOCK R&W R&W F8h
I²C block address of SRAM when mirrored into the
User memory.
Valid range starts
from 01h (NFC page 04h)
up to 34h (NFC page D0h) for NTAG I²C plus 1k
or up to 7Ch (NFC page F0h on memory Sector 1) for
NTAG I²C plus 2k
Configuration register: WDT_LS
7-0 WDT_LS
R&W R&W 48h
Least Significant byte of watchdog time control register
Configuration register: WDT_MS
7-0 WDT_MS
R&W R&W 08h
Most Significant byte of watchdog time control register.
When writing WDT_MS byte, the content of WDT_MS
and WDT_LS gets active for the watchdog timer.
Configuration register: I2C_CLOCK_STR
7-1 RFU
READ READ 0000000b RFU - all 7 bits locked to 0b
0 I2C_CLOCK_STR
R&W R&W 1b
Enables (1b) or disable (0b) the I²C clock stretching
Configuration register: REG_LOCK
7-2 RFU
READ READ 000000b RFU - all 6 bits locked to 0b
1 REG_LOCK_I2C¹
R&W R&W 0b
I²C Configuration Lock Bit
0b: Configuration bytes may be changed via I²C
1b: Configuration bytes can not be changed via I²C
Once set to 1b, cannot be reset to 0b anymore.
0 REG_LOCK_NFC¹
R&W R&W 0b
NFC Configuration Lock Bit
0b: Configuration bytes may be changed via NFC
1b… Configuration bytes can not be changed via NFC
Once set to 1b, cannot be reset to 0b anymore.
1 _{Setting both bits REG_LOCK_I2C and REG_LOCK_NFC to 1b, permanently locks write access to register default values}
(as no write is allowed anymore). As long as one bit is still 0b, the corresponding interface can still access and change the
register lock bytes.
NT3H2111/NT3H2211
Product data sheet
COMPANY PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.0 — 3 February 2016
359930
© NXP Semiconductors N.V. 2016. All rights reserved.
28 of 77