30.8.13 Data Scramble Control

Important: This register is only available for SAM L11 and has no effect for SAM L10.

Name:	DSCC
Offset:	0x30
Reset:	0x00000000
Property:	PAC Write-Protection, Secure, Enable-Protected


Bit	31	30	29	28	27	26	25	24
			DSCKEY[29:24]
Access			W/-/W	W/-/W	W/-/W	W/-/W	W/-/W	W/-/W
Reset			0	0	0	0	0	0


Bit	23	22	21	20	19	18	17	16
	DSCKEY[23:16]
Access	W/-/W	W/-/W	W/-/W	W/-/W	W/-/W	W/-/W	W/-/W	W/-/W
Reset	0	0	0	0	0	0	0	0


Bit	15	14	13	12	11	10	9	8
	DSCKEY[15:8]
Access	W/-/W	W/-/W	W/-/W	W/-/W	W/-/W	W/-/W	W/-/W	W/-/W
Reset	0	0	0	0	0	0	0	0


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

Bits 29:0 – DSCKEY[29:0] Data Scramble Key

This key value is used for data scrambling of the Secure Data Flash. After reset the key is 0. When written, the new value in the register is an XOR of the value written and the previous value of DSCC.DSCKEY.

This register is write only and will always read back as zero.

This register is Enable-Protected with SECCTRL.DSCEN meaning that it can't be modified when DSCEN=1 otherwise a PAC error is generated.

Updated DSCC.DSCKEY contents <- DSCC.DSCKEY XOR value written.