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HTMS8301FTK/AF 数据表(PDF) 21 Page - NXP Semiconductors

部件名 HTMS8301FTK/AF
功能描述  ISO 18000 transponder IC
PDF  44 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

HTMS8301FTK/AF 数据表(HTML) 21 Page - NXP Semiconductors

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184430
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.0 — 18 March 2010
184430
21 of 44
NXP Semiconductors
HITAG µ
ISO 18000 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.
Table 10.
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 12)
5ADR
(INV==0)
ADdRess
in combination with SEL (see Table 12)
4AFI
(INV==1)
Reserved for future
use
0
1
AFI field is not present
AFI field is present
5NOS
(INV==1)
0
1
16 slots while performing anti-collision
1 slot while performing anti-collision
Table 11.
Command Flags - Bit order
MSB
bit5
bit4
bit3
bit2
LSB
bit1
INV==0
ADR
SEL
CRCT
INV
PEXT
INV==1
NOS
AFI
CRCT
INV
PEXT
Table 12.
Meaning of ADR and SEL flag
ADR
SEL
Meaning
0
0
Request without UII, all
transponder ICs in READY state shall respond
1
0
Request contains UII, one
transponder IC (with corresponding UII) shall
respond
0
1
Request without UII, the
transponder IC in SELECTED state shall respond
1
1
Reserved for future use



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