AT88SA10HS-TSU-T(2010) 데이터 시트보기 (PDF) - Atmel Corporation
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AT88SA10HS-TSU-T Datasheet PDF : 23 Pages
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Atmel AT88SA10HS Host Authentication Chip
Table 5-6. Input Parameters
Name
Opcode
HOST2
Param1
Zero1
Param2
Zero2
Data
ClientResponse
Size
1
1
2
32
Notes
0x80
Must be 0x00
Must be 0x00 00
Response from the client
Table 5-7. Output Parameters
Name
Size Notes
Success
1 If the input ClientResponse matches the internally generated response, a value of zero will be
returned by Atmel AT88SA10HS after a THOST delay. If the two digests do NOT match, a value of
0x0F will be returned after a THOST delay
5.4.
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. Input Parameters
Name
Size
Opcode
Read
1
Param1
Mode
1
Param2
Address
2
Data
Ignored
0
Notes
0x02
Fuse or ROM
Which 4-bytes within array. Only bits zero and one are used, all others must be zeros
Table 5-9. Output Parameters
Name
Size Notes
Contents
4 The contents of the specified memory location
Table 5-10. Mode Encoding
Name
Value Notes
ROM
0x00 Reads four bytes from the ROM. Bit one of the address parameter must be zero
Fuse
0x01 Reads the value of 32-fuses. Bit one of the address parameter must be one
5.5.
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.
15
8595F–SMEM–8/10
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