HTRC11001T/03EE View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
Manufacturer
HTRC11001T/03EE Datasheet PDF : 22 Pages
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NXP Semiconductors
HTRC110
HITAG reader chip
10. Commands
Table 3 depicts the HTRC110 command set summary.
Table 3. HTRC110 commands
Bit No.
7
6
Command name
MSB
GET_SAMPLING_TIME 0
0
GET_CONFIG_PAGE
0
0
READ_PHASE
0
0
READ_TAG
1
1
WRITE_TAG_N
0
0
WRITE_TAG
1
1
SET_CONFIG_PAGE
0
1
SET_SAMPLING_TIME 1
0
5
4
3
2
1
0
Remark
LSB
0
0
0
0
1
0
8 bit resp. (0 0 D5-D0)
0
0
0
1
P1 P0 8 bit resp. (X3-X0 D3-D0)
0
0
1
0
0
0
8 bit resp. (0 0 D5 - D0)
1
-
-
-
-
-
READ_TAG-mode
0
1
N3 N2 N0 N0 WRITE_TAG-mode with
pulse width programming
0
-
-
-
-
-
WRITE_TAG-mode
P1 P0 D3 D2 D0 D0 4*4 config bits available
D5 D4 D3 D2 D0 D0
10.1 READ_TAG
This command is used to read the demodulated bit stream from a transponder: After the
assertion of the three command bits the HTRC110 instantaneously switches to
READ_TAG-mode and transmits the demodulated, filtered and digitized data from the
transponder. Data comes out and should be decoded by the microcontroller.
READ_TAG-mode is terminated by a low to high transition at SCLK.
Table 4. READ_TAG command
Bit No. 7 6 5 4 3 2 1 0 Remark
Command 1 1 1 - - - - - received data available at DOUT
10.2 WRITE_TAG_N
This command is used to write data to a transponder.
If N3 to N0 are set to zero, the signal from DIN is transparently switched to the drivers. A
high level at DIN corresponds to antenna drivers witched off, a low level corresponds to
antenna drivers switched on.
If any binary number between 1 and 1111 is loaded into N3 to N0 the drivers are switched
off at the next positive transition of DIN. This state is held for a time interval equal to N * T0
(T0 = 8 μs). This method relaxes the timing resolution requirements to the microcontroller
and to the software implementation while providing exact, selectable write pulse timing.
WRITE_TAG-mode is terminated immediately by a low to high transition at SCLK.
Table 5. READ_TAG_N command
Bit No. 7 6 5 4 3 2 1 0 Remark
Command 0 0 0 1 N3 N2 N1 N0 no response
037031
Product data sheet
PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.1 — 9 February 2010
037031
© NXP B.V. 2010. All rights reserved.
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