AT88SC0404C-PI Atmel, AT88SC0404C-PI Datasheet - Page 47

• Manufacturer Part Number: AT88SC0404C-PI
• Manufacturer: Atmel

Specifications of AT88SC0404C-PI

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Package Type: PDIP
• Mounting: Through Hole
• Pin Count: 8
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Not Compliant

9.4.1. Status Words
46
Table 35. Atmel CryptoMemory Asynchronous Mode Status Words
These status words indicate the state of the device at the end of the command. In normal conditions, the device sends
the INS byte as the procedure byte, and $90 $00 as the final status word. In certain conditions described below, the
device may interrupt the command by returning a status word in place of INS as the procedure byte.
$62 $00 is returned as a status word after a write command when the device is waiting for the host to send a secure
checksum before initiating the write cycle. This will happen only in Authentication Mode and Encryption Mode.
$67 $00 is returned as a procedure byte when the number of data bytes to be transferred is incorrect.
$69 $00 is returned after read/write commands as procedure bytes if the host is not allowed to read/write at the
address provided. It is also returned after Password and Authentication commands if the maximum number of attempts
has been reached. The device will return $69 $00 as a final status word in place of $90 $00, if the password
presentation, authentication or encryption activation failed due to invalid data, or if any incoming command failed due to
a bad checksum (MAC).
$6B $00 is returned as procedure bytes if the address is incorrect.
$6D $00 is returned as procedure bytes if the INS code received is not supported.
Atmel AT88SC0104/0204/0404/0808/1616/3216/6416/12816/25616C
SW1 SW2
$6B $00
$6D $00
$62 $00
$67 $00
$69 $00
$90 $00
The memory is unchanged (waiting for checksum)
The length is incorrect
The command is unauthorized
The address is incorrect
The instruction code is invalid
The command was successfully executed
Meaning
5211C–SMIC–01/10