AT88SC0808CA_14 Datasheet, PDF (48/71 Pages) ATMEL Corporation – Atmel CryptoMemory

10.6 Read User Zone: $B2
10.6.1 Functional
Figure 10-3. Read User Zone Command Functional Description
Host
Device
Read Command
Address 1
Address 2
Number of bytes N
Data
…
Data
N data bytes
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
Command Header
CLA INS : Command P1 : Address 1 P2 : Address 2
**
$B2
0000 0000
0a6-- ---a0
P3 : N
n7 --- n0
Data Returned
Data(1)
...
Data(N)
d7--- ---d0
...
d7--- ---d0
 
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AT88SC0104CA/0204CA/0404CA/0808CA [Datasheet]
Atmel-8664F-CryptoMem-Low-Density-Full-Specification-Datasheet_022014