NT3H2211W0FHKH Datasheet, PDF (29/77 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 14. Session register bytes
Bit Field
Access
via NFC
7 NFCS_I2C_RST_ON_OFF READ
6 _{PTHRU_ON_OFF}
READ
5-4 FD_OFF
3-2 FD_ON
READ
READ
Access
via I²C
Default Description
values
Session register: NC_REG
R&W
-
see configuration bytes description
R&W
-
see configuration bytes description, the bit is
cleared automatically, when on of the interfaces is
OFF:
R&W
-
see configuration bytes description
R&W
1 SRAM_MIRROR_ON_OFF READ
R&W
-
see configuration bytes description, the bit is
cleared automatically, when there is no Vcc power.
0 TRANSFER_DIR
READ
R&W
see configuration bytes description
Session register: LAST_NDEF_BLOCK
7-0 LAST_NDEF_BLOCK
READ
R&W
-
see configuration bytes description
Session register: SRAM_MIRROR_BLOCK
7-0 SRAM_MIRROR_BLOCK READ
R&W
-
see configuration bytes description
Session register: WDT_LS
7-0 WDT_LS
READ
R&W
-
see configuration bytes description
Session register: WDT_MS
7-0 WDT_MS
READ
R&W
-
see configuration bytes description
Session register: I2C_CLOCK_STR
7-2 RFU
READ
READ
-
RFU, all 6 bits locked to 0b
1 NEG_AUTH_REACHED READ
READ
0b
Status bit to show the number of negative
PWD_AUTH attempts reached
0b: PWD_AUTH still possible
1b: PWD_AUTH locked
0 I2C_CLOCK_STR
READ
READ
-
See configuration bytes description
Session register: NS_REG
7 NDEF_DATA_READ
READ
READ
0b
1b: all data bytes read from the address specified in
LAST_NDEF_BLOCK. Bit is reset to 0b when read
6 _{I2C_LOCKED}
READ
R&W
0b
1b: Memory access is locked to the I²C interface
5 RF_LOCKED
READ
READ
0b
1b: Memory access is locked to the NFC interface
4 SRAM_I2C_READY
READ
READ
0b
1b: data is ready in SRAM buffer to be read by I2C
3 SRAM_RF_READY
READ
READ
0b
1b: data is ready in SRAM buffer to be read by NFC
2 EEPROM_WR_ERR
READ
R&W
0b
1b: HV voltage error during EEPROM write or
erase cycle
Needs to be written back via I²C to 0b to be cleared
1 EEPROM_WR_BUSY
READ
READ
0b
1b: EEPROM write cycle in progress - access to
EEPROM disabled
0b: EEPROM access possible
0 RF_FIELD_PRESENT
READ
READ
0b
1b: NFC field is detected
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.
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