AT88SC0104CA_11 ATMEL [ATMEL Corporation], AT88SC0104CA_11 Datasheet - Page 48

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

10.6
10.6.1 Functional
Read User Zone: $B2
Figure 10-3. Read User Zone Command Functional Description
The read user zone command $B2 allows reading of data from the device's currently selected user zone (the procedure for
selecting a user zone is described below). The byte address is internally incremented following the transmission of each data
byte. During a read operation the address will "roll over" from the last byte of the current zone, to the first byte of the same
zone.
If the host is not allowed to read the zone, the device will return the "Command Unauthorized" code ($69 $00) after it has
received the header.
Table 10-4. Read User Zone Command Structure
CLA
**
INS : Command
Host
Read Command
Address 1
Address 2
Number of bytes N
$B2
P1 : Address 1
Command Header
0000 0000
Device
Data
…
Data
Atmel AT88SC0104CA/0204CA/0404CA/0808CA [Datasheet]
P2 : Address 2
0a
6
-- ---a
0
N data bytes
n
P3 : N
7
--- n
0
d
Data(1)
7
--- ---d
Data Returned
0
8664E−CRYPTO−12/11
...
...
d
Data(N)
7
--- ---d
0
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