at88sa102s ATMEL Corporation, at88sa102s Datasheet - Page 18

• Manufacturer Part Number: at88sa102s
• Description: Cryptoauthentication
• Manufacturer: ATMEL Corporation

4.3.
18
BurnFuse
Burns a single one of the 23 status fuse bits (Fuse[64] – Fuse[86]). No other fuses can be burned with this command –
use BurnSecure at personalization time to burn any of the first 88 fuses.
If the BurnFuse Enable bit (Fuse 1) has been burned, then attempts to run this command will return an error.
The power supply pin must meet the V
actual fuse burn will not be attempted and the chip will return the error code. If the watchdog timer is within t
of its expiration, this command will also be aborted and return an error.
There is a very small interval during t
not be removed during this interval, or the fuse may end up in a state where it reads as un-burned but cannot be
burned.
Table 13.
Table 14.
AT88SA102S [Preliminary]
Opcode
Param1
Param2
Data
Success
Name
Input Parameters
Output Parameters
BURNFUSE
FuseNum
Zero
Ignored
Size
1
Name
Upon successful execution, a value of 0 will be returned by the AT88SA102S.
Size
EXEC_FUSE
1
1
2
0
BURN
0x04
Which bit within fuse array, minimum value is 64, and maximum value is 86.
Must be 0x00 00
specification in order to burn fuses reliably. If the voltage is too low then the
when the fuse element is actually being burned. The power supply must
Notes
Notes
8584A–SMEM–03/09
EXEC_FUSE