AT88SC3216CRF-MVB1G Atmel, AT88SC3216CRF-MVB1G Datasheet - Page 120

• 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

K.7.
120
AAC Registers
The Authentication Attempt Counters contain a value which indicates how many unsuccessful Authentication and
Encryption Activation attempts have been made using the Key Index of the corresponding Secret Seed and Session
Encryption Key. Table 99, Table 100, and Table 101 show 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 99.
Table 100.
AT88SC0808/1616/3216/6416CRF, AT88RF04C
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 DCR Configuration on 88SC PICCs.
Authentication Attempt Counter Coding for the Extended Trials Allowed DCR Configuration on 88SC
PICCs.
4 Failed Attempts (LOCK)
8 Failed Attempts (LOCK)
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
5276C–RFID–3/09