AT88SC6416CRF-MVB1G Atmel, AT88SC6416CRF-MVB1G Datasheet - Page 103
AT88SC6416CRF-MVB1G
Manufacturer Part Number
AT88SC6416CRF-MVB1G
Description
CRYPTOMEMORY 64KBIT 16ZONE MVB
Manufacturer
Atmel
Datasheets
1.AT88SC6416CRF-DK.pdf
(9 pages)
2.AT88RF04C-MVB1G.pdf
(158 pages)
3.AT88RF04C-MVB1G.pdf
(2 pages)
Specifications of AT88SC6416CRF-MVB1G
Rf Type
Read / Write
Frequency
13.56MHz
Features
ISO14443-B
Package / Case
MVB Module
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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I.4.
5276C–RFID–3/09
Table 78.
The Password Attempt Counters contain a value which indicates how many unsuccessful password verification
attempts have been made using the Password Index of the corresponding password. Table 76, Table 77, and Table 78
show coding of the PAC register. On 88SC PICCs the DCR register bit ETA selects the number of password attempt
that are permitted; the default configuration allows four attempts, ETA = 0b allows eight attempts. On 88RF PICCs the
maximum number of attempts is fifteen. If the PAC reaches the maximum count, then the corresponding password is
locked and all subsequent Check Password commands will fail.
Password Security Options
Password security for a User Zone is enabled by programming the Access Register for the zone. A Password Set is
assigned to the User Zone by programming the Password Register for the zone. Configuration of the registers is
described in Appendix H.
Table 79.
Table 79 shows the available password security options. The default setting of PM=11b disables password security.
The remaining two options enable password security for either writes only, or for both reads and writes.
PAC Register
PM1
1
1
0
0
$AA
$5A
$6A
$9A
$A5
$A6
$A9
$55
$56
$59
$65
$66
$69
$95
$96
$99
All Other Values Are Not Supported
Password Attempt Counter Coding for 88RF PICCs.
Coding of the Password Mode bits of the Access Register.
PM0
1
0
1
0
15 Failed Attempts (LOCK)
AT88SC0808/1616/3216/6416CRF, AT88RF04C
No Failed Attempts
10 Failed Attempts
11 Failed Attempts
12 Failed Attempts
13 Failed Attempts
14 Failed Attempts
2 Failed Attempts
3 Failed Attempts
4 Failed Attempts
5 Failed Attempts
6 Failed Attempts
7 Failed Attempts
8 Failed Attempts
9 Failed Attempts
1 Failed Attempt
Description
Read and Write Passwords Required
Write Password Required
No Password Required
Access
103
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