AT88RF04C-WA1 Atmel, AT88RF04C-WA1 Datasheet - Page 117
AT88RF04C-WA1
Manufacturer Part Number
AT88RF04C-WA1
Description
Manufacturer
Atmel
Datasheet
1.AT88RF04C-WA1.pdf
(158 pages)
Specifications of AT88RF04C-WA1
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K.4.
5276C–RFID–3/09
The Password Register [88SC]
The Password Registers are used to select the Key Sets for Authentication or Encryption Communication Security on
88SC PICCs. Any Key Set can be used with any User Zone by programming the Password Register for the User Zone
with the appropriate AK and POK values. One Key Set can be used with any number of User Zones.
Figure 36.
The Authentication Key Set selection bits control the key set assigned to a User Zone for communication security. The
Access Register bits determine the Communication Security mode associated with the AK bits.
Table 95.
The Program-Only Key Set selection bits control the key set assigned to a User Zone for communication security. The
Access Register bits determine the Communication Security mode associated with the POK bits. The POK bits are only
used in Dual Access Authentication mode.
Table 96.
Bit 7
AK1
1
POK1
AK1
0
0
1
1
0
0
1
1
Bit 6
AK0
Definition of the User Zone Password Registers on 88SC PICCs.
Coding of the Authentication Key Set select bits for CryptoRF communication security.
Coding of the Program-Only Key Set select bits for CryptoRF communication security.
1
POK0
POK1
Bit 5
AK0
0
1
0
1
0
1
0
1
1
AT88SC0808/1616/3216/6416CRF, AT88RF04C
POK0
Bit 4
1
Authentication Key
Authentication Key
Secret Seed G
Secret Seed G
Secret Seed G
Secret Seed G
Secret Seed G
Secret Seed G
Secret Seed G
Secret Seed G
Bit 3
RFU
1
Bit 2
PW2
0
1
2
3
0
1
2
3
1
PW1
Bit 1
1
Encryption Key
Session Key S
Session Key S
Session Key S
Session Key S
Bit 0
PW0
1
Default Value
0
1
2
3
117
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