NT3H2211W0FHKH Datasheet, PDF (52/77 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
10.9 FAST_READ
The FAST_READ command requires a start page address and an end page address and
returns all n*4 bytes of the addressed pages. For example, if the start address is 03h and
the end address is 07h, then pages 03h, 04h, 05h, 06h and 07h are returned.
For details on those cases and the command structure, refer to Figure 25 and Table 29.
Table 30 shows the required timing.
NFC device
NTAG ,,ACK''
Cmd StartAddr EndAddr
453 μs
CRC
NTAG ,,NAK''
T_ACK
T_NAK
Data
CRC
depending on nr of read pages
NAK
57 μs
Time out
Fig 25. FAST_READ command
T_TimeOut
aaa-006989
Table 29. FAST_READ command
Name
Code
Cmd
3Ah
StartAddr
-
EndAddr
-
CRC
-
Data
-
NAK
see Table 17
Description
read multiple pages
start page address
end page address
CRC according to Ref. 1
data content of the addressed pages
see Section 10.3
Length
1 byte
1 byte
1 byte
2 bytes
n*4 bytes
4 bit
Table 30. FAST_READ timing
These times exclude the end of communication of the NFC device.
FAST_READ
T_ACK/NAK min
n=9^[1]
T_ACK/NAK max
T_TimeOut
[1] Refer to Section 10.2 “Timing”.
T_TimeOut
5 ms
In the initial state of NTAG I²C plus, all memory pages are allowed as StartAddr parameter
to the FAST_READ command:
• Page address from 00h to E9h and pages ECh and EDh for NTAG I²C plus 1k and 2k
• Page address from 00h to FFh (Sector 1) for NTAG I²C plus 2k only
• SRAM buffer address when pass-through mode is enabled
If the start addressed memory page (StartAddr) is outside of accessible area, NTAG I²C
plus replies a NAK.
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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