AT88SA102S_11 Datasheet, PDF (16/26 Pages) ATMEL Corporation – Atmel CryptoAuthentication Product Authentication Chip

6.2 Read
Reads 4-bytes from Fuse or ROM and returns an error if an attempt is made to read any fuse address that is illegal.
Table 6-4. Input Parameters
Opcode
Param1
Param2
Data
Name
READ
Mode
Address
Ignored
Size
1
1
2
0
Notes
0x02
Fuse or ROM
Which 4-bytes within array. Bits 2-15 should be 0
Table 6-5. Output Parameters
Name
Contents
Size
4
Notes
The contents of the specified memory location
Table 6-6. Mode Encoding
Name
ROM
Fuse
Value
0x00
0x01
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. The input
address parameter << 5 provides the fuse number corresponding to the LSB of the first
returned byte.
Atmel AT88SA102S [DATASHEET] 16
8584G−CRYPTO−9/11