AT88SA10HS_10 ATMEL [ATMEL Corporation], AT88SA10HS_10 Datasheet - Page 15

• Manufacturer Part Number: AT88SA10HS_10
• Description: Atmel CryptoAuthentication Host Security Chip
• Manufacturer: ATMEL [ATMEL Corporation]

5.4.
5.5.
8595F–SMEM–8/10
Table 5-6.
Table 5-7.
Read
Reads 4-bytes from Fuse or ROM; returns an error if an attempt is made to read any fuses or ROM locations
which are illegal.
Table 5-8.
Table 5-9.
Table 5-10. Mode Encoding
GenPersonalizationKey
Loads a personalization key into internal memory and then uses that key along with an input seed to generate a
decryption digest using SHA-256. Neither the key nor the decryption digest can be read from the chip. Upon
completion, an internal bit is set indicating that a secure personalization digest has been loaded and is ready to
use by the BurnSecure command. This bit is cleared (and the digest lost) when the watchdog timer expires or the
power is cycled.
This command will fail if Fuse[87] has been burned.
Opcode
Param1
Param2
Data
Name
Success
Opcode
Param1
Param2
Data
Name
Contents
Name
ROM
Fuse
Input Parameters
Output Parameters
Input Parameters
Output Parameters
Name
HOST2
Zero1
Zero2
ClientResponse
Name
Read
Mode
Address
Ignored
Value
0x00
0x01
Size
Size
1
4
Notes
If the input ClientResponse matches the internally generated response, a value of zero will be
returned by Atmel AT88SA10HS after a T
0x0F will be returned after a T
Notes
The contents of the specified memory location
Notes
Reads four bytes from the ROM. Bit one of the address parameter must be zero
Reads the value of 32-fuses. Bit one of the address parameter must be one
Atmel AT88SA10HS Host Authentication Chip
Size
1
1
2
0
Size
Notes
0x02
Fuse or ROM
Which 4-bytes within array. Only bits zero and one are used, all others must be zeros
32
1
1
2
Notes
0x80
Must be 0x00
Must be 0x00 00
Response from the client
HOST
delay
HOST
delay. If the two digests do NOT match, a value of
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