htrc11001t/03ee NXP Semiconductors, htrc11001t/03ee Datasheet - Page 8

• Manufacturer Part Number: htrc11001t/03ee
• Description: Hitag Reader Chip
• Manufacturer: NXP Semiconductors

NXP Semiconductors
10. Commands
Table 3.
037031
Product data sheet
PUBLIC
Bit No.
Command name
GET_SAMPLING_TIME
GET_CONFIG_PAGE
READ_PHASE
READ_TAG
WRITE_TAG_N
WRITE_TAG
SET_CONFIG_PAGE
SET_SAMPLING_TIME
HTRC110 commands
10.1 READ_TAG
10.2 WRITE_TAG_N
Table 3
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.
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 * T
(T
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.
Bit No.
Command 1
Bit No.
Command 0
0
= 8 μs). This method relaxes the timing resolution requirements to the microcontroller
7
MSB
0
0
0
1
0
1
0
1
depicts the HTRC110 command set summary.
READ_TAG command
READ_TAG_N command
6
0
0
0
1
0
1
1
0
7
7
All information provided in this document is subject to legal disclaimers.
6
1
6
0
D5
5
0
0
0
1
0
0
P1
Rev. 3.1 — 9 February 2010
5
1
5
0
4
0
0
0
-
1
-
P0
D4
4
-
4
1
037031
D3
D3
3
0
0
1
-
N3
-
3
-
3
N3
2
0
1
0
-
N2
-
D2
D2
2
-
2
N2
1
-
1
N1
P1
N0
D0
D0
1
1
0
-
-
0
-
0
N0
0
LSB
0
P0
0
-
N0
-
D0
D0
Remark
received data available at DOUT
Remark
no response
Remark
8 bit resp. (0 0 D5-D0)
8 bit resp. (X3-X0 D3-D0)
8 bit resp. (0 0 D5 - D0)
READ_TAG-mode
WRITE_TAG-mode with
pulse width programming
WRITE_TAG-mode
4*4 config bits available
HTRC110
HITAG reader chip
© NXP B.V. 2010. All rights reserved.
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