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參數(shù)資料
| 型號： | HTSH4801ETK |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 通信及網(wǎng)絡 |
| 英文描述： | HITAG S transponder IC |
| 封裝： | HTSFCH4801EV/DH<SOT732-1 (FCP2)|<<http://www.nxp.com/packages/SOT732-1.html<1<Always Pb-free,;HTSFCH5601EV/DH<SOT732-1 (FCP2)|<<http://www.nxp.com/packages/SOT732-1.html& |
| 文件頁數(shù)： | 11/21頁 |
| 文件大?。?/td> | 162K |
| 代理商： | HTSH4801ETK |
HTSICH56_48_SDS
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product short data sheet
COMPANY PUBLIC
Rev. 3.0 — 12 October 2011
210330
11 of 21
NXP Semiconductors
HTSICH56; HTSICH48
HITAG S transponder IC
7.5.4
CHALLENGE
By means of the response of the SELECT (UID) command the RWD detects that the
HITAG S Transponder is configured in Authentication Mode (Bit AUT = 1) and starts the
encrypted Challenge sequence.
The Read/Write Device sends a 32 bit Random Number (RND) and a 32 bit secret data
stream to the transponder. In order to perform the secret data stream, a security
co-processor is required on the read/write Device.
If the received secret data stream corresponds with the secret data stream calculated by
the HITAG S Transponder, a 32 bit Secret Response (secret data stream encrypting the
configuration byte CON 2, password high byte PWDH 0 and password low Bytes PWDL 0
and PWDL 1) is transmitted after the SOF.
The response of the HITAG S Transponder is transmitted in Manchester Coding (MC).
Table 8.
CHALLENGE
MSB
LSB MSB
32 Bit RND
LSB
RWD:
32 Bit Secret Data
EOF
MSB
CON 2
LSB MSB
LSB MSB
LSB MSB
LSB MSB
LSB
Transponder
:
t
wresp
SOF
PWDH 0
32 Bit secret response
PWDL 0
PWDL 1
CRC 8
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