33.7.20 Event User Security Attribution Check

This register allows the user to select one or more event users to check their security attribution as non-secured.

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

Name:	NSCHKUSER0
Offset:	0x1F0
Reset:	0x00000000
Property:	PAC Write-Protection


Bit	31	30	29	28	27	26	25	24

Access
Reset


Bit	23	22	21	20	19	18	17	16
		USER22	USER21	USER20	USER19	USER18	USER17	USER16
Access		RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW
Reset		0	0	0	0	0	0	0


Bit	15	14	13	12	11	10	9	8
	USER15	USER14	USER13	USER12	USER11	USER10	USER9	USER8
Access	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW
Reset	0	0	0	0	0	0	0	0


Bit	7	6	5	4	3	2	1	0
	USER7	USER6	USER5	USER4	USER3	USER2	USER1	USER0
Access	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW	RW/RW/RW
Reset	0	0	0	0	0	0	0	0

Bits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 – USERn Event User n Selection [n=0..22]

These bits selects the individual event users for security attribution check. If any event user selected in NSCHKUSER has the corresponding bit in NONSECUSER set to the opposite value, then the NSCHK interrupt flag will be set.

Value	Description
0	0-to-1 transition will be detected on corresponding NONSECUSER bit.
1	1-to-0 transition will be detected on corresponding NONSECUSER bit.