htsich56 NXP Semiconductors, htsich56 Datasheet - Page 11

• Manufacturer Part Number: htsich56
• Description: Hitag S Transponder Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 8.
HTSICH56_48_SDS
Product short data sheet
COMPANY PUBLIC
RWD:
Transponder
MSB
32 Bit RND
CHALLENGE
:
LSB MSB
7.5.4 CHALLENGE
32 Bit Secret Data EOF
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).
LSB
All information provided in this document is subject to legal disclaimers.
t
wresp
Rev. 3.0 — 12 October 2011
SOF
210330
MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB
CON 2
HTSICH56; HTSICH48
32 Bit secret response
PWDH 0
PWDL 0
HITAG S transponder IC
PWDL 1
© NXP B.V. 2011. All rights reserved.
CRC 8
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