AT88SC3216CRF-MVB1G Atmel, AT88SC3216CRF-MVB1G Datasheet - Page 111

• Manufacturer Part Number: AT88SC3216CRF-MVB1G
• Description: CRYPTOMEMORY 32KBIT 16ZONE MVB
• Manufacturer: Atmel
• Series: CryptoMemory®, CryptoRF®r

Specifications of AT88SC3216CRF-MVB1G

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO1444-2, 1444-3, 32-kbits
• Package / Case: MVB Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

J.7.
5276C–RFID–3/09
AAC Registers
The Authentication Attempt Counters contain a value which indicates how many unsuccessful Authentication attempts
have been made using the Key Index of the corresponding Secret Seed. Table 88, Table 89 and Table 90 shows
coding of the AAC register. If the AAC reaches the maximum count of 4 or 8 on 88SC PICCs, then the corresponding
key set is locked and all subsequent Authentication attempts will fail. If the AAC reaches the maximum count of 15 on
88RF PICCs, then the corresponding key set is locked and all subsequent Authentication attempts will fail.
If the AAC contents are corrupted, or are programmed with an undefined value, then the corresponding key set is
locked and all subsequent Authentication attempts will fail. The AAC registers can always be read using the Read
System Zone command.
Table 88.
Table 89.
AAC Register
AAC Register
$CC
$EE
$FC
$FF
$FF
$FE
$F8
$F0
$E0
$C0
$88
$00
$80
$00
All Other Values Are Not Supported
All Other Values Are Not Supported
Authentication Attempt Counter Coding for the Default Configuration of 88SC PICCs.
Authentication Attempt Counter Coding for the Extended Trials Allowed Configuration of 88SC PICCs.
4 Failed Attempts (LOCK)
8 Failed Attempts (LOCK)
AT88SC0808/1616/3216/6416CRF, AT88RF04C
No Failed Attempts
No Failed Attempts
2 Failed Attempts
3 Failed Attempts
2 Failed Attempts
3 Failed Attempts
4 Failed Attempts
5 Failed Attempts
6 Failed Attempts
7 Failed Attempts
1 Failed Attempt
1 Failed Attempt
Description
Description
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