AT88SC0808CRF-MR1 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT88SC0808CRF-MR1' PDF : 158 Pages View PDF
AT88SC0808/1616/3216/6416CRF, AT88RF04C
The PICC compares the AFI register with the AFI value received in the REQB or WUPB polling command using the
matching criteria defined in ISO/IEC 14443 Part 3. Table 111 shows the AFI matching criteria.
Table 111. AFI matching criteria for polling commands received by the PICC.
AFI
High Bits
AFI
Low Bits
REQB/WUPB Polling produces a
PICC response from:
$0
$0
All Families and sub-families
“X”
$0
All sub-families of Family “X”
“X”
“Y”
Only sub-family “Y” of Family “X”
$0
“Y”
Proprietary sub-family “Y” Only
“Y” = $1 to $F
“X” = $1 to $F
M.3.
Summary
The CryptoRF anticollision registers provide customers with the capability to customize the response of a CryptoRF
PICC to the polling commands. This polling response is used by the PCD to perform anticollision and to determine the
communication capabilities of the PICC. Intelligent RF readers will reconfigure themselves based on the contents of the
protocol bytes in ATQB and may malfunction if invalid values are returned by the card. For this reason, the values of
the CryptoRF anticollision registers must be carefully selected using the guidelines in this appendix.
5276C–RFID–3/09
133
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