HTMS8301FUGSLASHAM datasheet(22/44 Pages) NXP

22 / 44 page

184430

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Product data sheet

PUBLIC

Rev. 3.0 — 18 March 2010

184430

22 of 44

NXP Semiconductors

HITAG µ

ISO 18000 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 13 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 13.

Response format in error case

Error flag

Error code

CRC-16

Description

(16)

No. of bits

111

Fig 12. HITAG µ ISO 18000 transponder IC response - in case of no error

Fig 13. HITAG µ ISO 18000 transponder IC response - in error case

001aak260

SOF

Error Flag

''0''

Data

(CRC)

EOF

001aak262

SOF

Error Flag

''1''

Error Code

''111''

(CRC)

EOF

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