AT88SC0104CA_11 ATMEL [ATMEL Corporation], AT88SC0104CA_11 Datasheet - Page 18

• Manufacturer Part Number: AT88SC0104CA_11
• Description: Atmel CryptoMemory Specification Datasheet
• Manufacturer: ATMEL [ATMEL Corporation]

6.3
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.3.7
Configuration Memory Values
This section describes each individual field in the configuration memory.
Default Values
Atmel programs certain fields of the system zone at the factory. The customer may elect to change the content of all of these
fields except for the lot history code field, which is permanently locked. Atmel programs the remainder of the fields, including
all of the configuration memory and user zones to ones prior to releasing the device from the factory.
Programmed
Table 6-3.
Answer To Reset (ATR)
This is an eight byte wide register with content that Atmel defines. This register is read/write accessible prior to blowing the
FAB fuse, but becomes read-only after blowing the fuse.
Fab Code
This field is a 16-bit wide register with content that Atmel defines. This field is read/write accessible prior to blowing the FAB
fuse, but becomes read-only after blowing the fuse.
Memory Test Zone (MTZ)
This field is a 16-bit wide register with open read/write access privileges at all times for testing basic communication to the
device. This field is free of all security constraints at all times.
Card Manufacturer Code
This field is a 32-bit wide register with read/write access privileges for the customer to define its content. The content of this
field becomes read-only after blowing the PER fuse.
Lot History Code
This field is a 64-bit wide register with content that Atmel defines. This field is read-only.
Issuer Code
This field is a 128-bit wide register with read/write access privileges for customer to define its content. The content of this field
becomes read-only after blowing the PER fuse.
Device
AT88SC0104CA
AT88SC0204CA
AT88SC0404CA
AT88SC0808CA
Factory Programmed Fields
Fields,” summarizes device fields Atmel programs at the factory. A brief description of each field follows.
3B B2 11 00 10 80 00 01
3B B2 11 00 10 80 00 02
3B B2 11 00 10 80 00 04
3B B2 11 00 10 80 00 08
ATR
Atmel AT88SC0104CA/0204CA/0404CA/0808CA [Datasheet]
Fab Code
10 10
20 20
40 40
80 60
Lot History code
Variable, locked
Variable, locked
Variable, locked
Variable, locked
Table 6-3, “Factory
8664E−CRYPTO−12/11
Write 7 Password
(Secure Code)
DD 42 97
E5 47 47
22 E8 3F
60 57 34
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