HTRC11001T/03EE 데이터 시트보기 (PDF) - NXP Semiconductors.

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HTRC11001T/03EE

HITAG reader chip

NXP Semiconductors. 

NXP Semiconductors

HTRC110

HITAG reader chip

10.3 WRITE_TAG

This is the 3 bit short form of the previously described command WRITE_TAG_N. It allows

to switch into WRITE_TAG-mode with a minimum communication time.

The behaviour of the WRITE_TAG command is identical to WRITE_TAG_N with two

exceptions:

• WRITE_TAG-mode is entered after assertion of the 3rd command bit.

• No N parameter is specified with this command; instead the N value, which was

programmed with the most recent WRITE_TAG_N command, is used. If no

WRITE_TAG_N was issued so far, a default N = 0 (transparent mode) will be

assumed.

Table 6. WRTIE_TAG command

Bit No. 7 6 5 4 3 2 1 0 Remark

Command 1 1 0 - - - - - no response

10.4 READ_PHASE

This command is used to read the antenna´s phase, which is measured at every carrier

cycle. The phase is coded binary in D5 to D0.

Table 7. READ_PHASE command

Bit No. 7 6 5 4 3 2 1 0 Remark

Command 0 0 0 0 1 0 0 0 -

Response 0 0 D5 D4 D3 D2 D1 D0 -

10.5 SET_SAMPLING_TIME

This command specifies the demodulator sampling time ts. The sampling time is coded

binary in D5 to D0.

Table 8. SET_SAMPLING_TIME command

Bit No. 7 6 5 4 3 2 1 0 Remark

Command 1 0 D5 D4 D3 D2 D1 D0 no response

10.6 GET_SAMPLING_TIME

This command is used to read back the sampling time ts set with SET_SAMPLING_TIME.

The sampling time is coded binary in D5 to D0.

Table 9. GET_SAMPLING_TIME command

Bit No. 7 6 5 4 3 2 1 0 Remark

Command 0 0 0 0 0 0 1 0 -

Response 0 0 D5 D4 D3 D2 D1 D0 -

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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