5.5.1.1 Sequence Number Fuse

The default value given in this fuse description is the factory-programmed value and must not be mistaken for the Reset value.

Name:	SEQNUM
Offset:	0x0000
Reset:	0xFFFFFFFF
Property:	R/W


Bit	31	30	29	28	27	26	25	24
	SEQNUM[31:24]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	1	1	1	1	1	1	1	1


Bit	23	22	21	20	19	18	17	16
	SEQNUM[23:16]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	1	1	1	1	1	1	1	1


Bit	15	14	13	12	11	10	9	8
	SEQNUM[15:8]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	1	1	1	1	1	1	1	1


Bit	7	6	5	4	3	2	1	0
	SEQNUM[7:0]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	1	1	1	1	1	1	1	1

Bits 31:0 – SEQNUM[31:0] Sequence Number

When the value of this bit field is equal to 0xFFFFFFFF (factory default) at start-up, none of the BOOTCFG fuse values is copied to any of the peripheral registers at startup or reset. Instead, the respective reset values given in the peripheral registers’ descriptions are used.

When this bit field is not 0xFFFFFFFF at start-up, the user-defined Boot Configuration (BOOTCFG) fuse values are applied.

The value of this fuse can be used by the bootloader or application for version tracking or similar purposes, as long as it is not 0xFFFFFFFF.