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HTMS8001FTB/AF,115

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48P49-P51P52-P54P55-P57
HTMS1x01_8x01 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.4 — 21 May 2015
152934 31 of 57
NXP Semiconductors
HTMS1x01; HTMS8x01
HITAG µ transponder IC
14. Command set
The first part of this section (Section 14.1) describes the flags used in every RWD
command. The following subsections (Section 14.3
until Section 14.13) explain all
implemented commands and their suitable transponder IC responses which are done with
tables showing the command itself and suitable responses.
Within tables flags, parameter bits and parts of a response written in braces are optional.
That means if the suitable flag is set resulting transponder IC's action will be performed
according to Section 14.1
.
Every command except the Switch command is embedded in SOF and EOF pattern. As
described in Table 15
and Table 16 sending and receiving data is done with the least
significant bit of every field on first position.
Important information:
In this document the fields (i.e. command codes) are written with most significant
bit first.
[1] values in braces are optional
[2] data is sent with least significant bit first
[1] values in braces are optional
[2] data is sent with least significant bit first
Table 15. Reader - Transponder IC transmission
[1][2]
SOF Flags Commands Parameters Data CRC-16 EOF
- 5 6 var. var. (16) -
- LSB ... MSB LSB ... MSB LSB ... MSB LSB ... MSB LSB ... MSB -
Table 16. Transponder IC - Reader transmission
[1][2]
SOF Error flag Data/Error code CRC-16 EOF
- 1 var. (16) -
- - LSB ... MSB LSB ... MSB -
HTMS1x01_8x01 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.4 — 21 May 2015
152934 32 of 57
NXP Semiconductors
HTMS1x01; HTMS8x01
HITAG µ transponder IC
14.1 Flags
Every request command contains five flags which are sent in order Bit 1 (LSB) to Bit 5
(MSB). The specific meaning depends on the context.
Note:
For HITAG µ inventory (INV) flag and select (SEL) flag must be set to ’0’
Table 17. Command Flags
Bit Flag Full name Value Description
1 PEXT Protocol EXTension 0
1
No protocol format extension
RFU
2 INV INVentory 0
1
Flag 4 and Flag 5 are ’SEL’ and ’ADR’ Flag
Flag 4 and Flag 5 are ’RFU’ and ’NOS’ Flag
3 CRCT CRC-Transponder 0
1
Transponder IC respond without CRC
Transponder IC respond contains CRC
4SEL
(INV==0)
SELect in combination with ADR (see Table 19
)
5ADR
(INV==0)
ADdRess in combination with SEL (see Ta ble 19
)
4RFU
(INV==1)
Reserved for future
use
0 this flag is not used and set to '0'
5NOS
(INV==1)
0
1
16 slots while performing anti-collision
1 slot while performing anti-collision
Table 18. Command Flags - Bit order
MSB
bit5
bit4 bit3 bit2
LSB
bit1
INV==0 ADR SEL CRCT INV PEXT
INV==1 NOS RFU CRCT INV PEXT
Table 19. Meaning of ADR and SEL flag
ADR SEL Meaning
0 0 Request without UID, all
transponder ICs in READY state shall respond
1 0 Request contains UID, one
transponder IC (with corresponding UID) shall
respond
0 1 Request without UID, the
transponder IC in SELECTED state shall respond
1 1 Reserved for future use
HTMS1x01_8x01 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.4 — 21 May 2015
152934 33 of 57
NXP Semiconductors
HTMS1x01; HTMS8x01
HITAG µ transponder IC
14.2 Error handling
In case an error has been occurred the transponder IC responses with the set error flag
and the three bit code ’111’ (meaning ’unknown error’).
The general response format in case of an error response is shown in Table 20
whereas
commands not supporting error responses are excluded. In case of an unsupported
command there will be no response. The format is embedded into SOF and EOF.
Table 20. Response format in error case
Error flag Error code CRC-16 Description
1 3 (16) No. of bits
1111
Fig 17. HITAG µ transponder IC response - in case of no error
Fig 18. HITAG µ transponder IC response - in error case
001aak260
SOF
Error Flag
''0''
Data (CRC) EOF
001aak262
SOF
Error Flag
''1''
Error Code
''111''
(CRC) EOF
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48P49-P51P52-P54P55-P57

HTMS8001FTB/AF,115

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NXP Semiconductors
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RFID Transponders RFID HTAG ADVANCED
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