AT88SC0808CRF-MVB1G Atmel, AT88SC0808CRF-MVB1G Datasheet - Page 89
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AT88SC0808CRF-MVB1G
Manufacturer Part Number
AT88SC0808CRF-MVB1G
Description
CRYPTOMEMORY 8KBIT 8ZONE MVB
Manufacturer
Atmel
Datasheets
1.AT88RF04C-MVB1G.pdf
(158 pages)
2.AT88RF04C-MVB1G.pdf
(2 pages)
3.AT88SC0808CRF-MR1.pdf
(10 pages)
Specifications of AT88SC0808CRF-MVB1G
Rf Type
Read / Write
Frequency
13.56MHz
Features
8 Kbit
Package / Case
MVB Module
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 89 of 158
- Download datasheet (892Kb)
F.1.
F.2.
F.3.
F.4.
5276C–RFID–3/09
User Memory Initialization
The user memory is initialized by using the Set User Zone command to select a User Zone, and writing the initial data
with Write User Zone commands. The data is automatically verified by the Automatic Data Write function as each Write
User Zone command is processed. The data can also be verified with Read User Zone commands. Each User Zone is
programmed in this manner.
Transport Password Check
The Transport Password must be presented using the Check Password command prior to writing the Configuration
Memory. The Transport Password for each 88RF device is shown in Table 61. The Transport Password is the same for
every device with the same base part number; it is never changed by Atmel.
Table 61.
Security Fuse Programming
The optional Secure Personalization mode is enabled and disabled by programming the security fuses. By default the
Secure Personalization mode is disabled. Programming the ENC fuse enables Secure Personalization mode.
Three security fuses are programmed during the personalization process to lock the PICC configuration. The Write
Fuse Byte option of the Write System Zone command is used to program the fuses. A fourth fuse, SEC, is already
programmed by Atmel before CryptoRF leaves the factory. The fuses can only be programmed in the specified order.
The security fuse programming sequence is as follows:
1.
2.
3.
The response to each Write System Zone command should be ACK, and the fuse byte contents will be returned in the
STATUS byte. After all three fuses are programmed, the device configuration is locked and personalization is
complete.
Secure Personalization Mode Data Encryption
When the optional Secure Personalization mode is enabled by programming the ENC fuse to 0b, then certain registers
in the configuration memory require communication encryption for read or write access. This is illustrated in Figure 19
below using color codes. The contents of registers with green shading are never encrypted when reading or writing,
regardless of the communication security mode of the PICC. Access to registers with pink shading is forbidden; no read
or write access is allowed.
The registers shaded in blue contain device "secrets", they cannot be written or read unless the Encryption
Communication Security mode has been activated (with any key set). The contents of these "secrets" registers is
encrypted when reading or writing. Use of the Write System Zone with Integrated MAC command is mandatory when
writing the "secrets" registers (see Section 6.10).
Send Write System Zone command with:
PARAM = $01, ADDR = $06, L = $00, DATA = $00 to program the ENC (Encryption) fuse. The Secure
Personalization mode is enabled by programming the ENC fuse.
Send Write System Zone command with:
PARAM = $01, ADDR = $04, L = $00, DATA = $00 to program the SKY (Secret Key) fuse. The secrets are locked
and the Secure Personalization mode is disabled by programming the SKY fuse.
Send Write System Zone command with:
PARAM = $01, ADDR = $00, L = $00, DATA = $00 to program the PER (Personalization) fuse. The Transport
Password is disabled by programming the PER fuse.
Part Number
AT88RF04C
CryptoRF
88RF PICC Transport Passwords
AT88SC0808/1616/3216/6416CRF, AT88RF04C
PW Index
$07
Transport Password
$30 1D D2
Password
89
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