47.6.8 QuiddiKey Control register

The Control register defines which command must be executed next. When the command is accepted or rejected, the bits automatically revert to 0. Only one command bit may be written with 1 at a time, with the exception of qk_zeroize. Writing qk_zeroize with 1 takes precedence over all other commands.

Table 47-8. Register Bit Attribute Legend
Symbol	Description	Symbol	Description	Symbol	Description
R	Readable bit	HC	Cleared by Hardware	(Grey cell)	Unimplemented
W	Writable bit	HS	Set by Hardware	X	Bit is unknown at Reset
K	Write to clear	S	Software settable bit	—	—

Name:	QK CR
Offset:	0x200
Reset:	0x00000000
Property:	Write-Protected


Bit	31	30	29	28	27	26	25	24
	QK TEST PUF	QK TEST MEMORY
Access	R/W	R/W
Reset	0	0


Bit	23	22	21	20	19	18	17	16

Access
Reset


Bit	15	14	13	12	11	10	9	8
	QK GENERATE RANDOM						QK WRAP	QK WRAP GENERATED RANDOM
Access	R/W						R/W	R/W
Reset	0						0	0


Bit	7	6	5	4	3	2	1	0
	QK UNWRAP	QK GET KEY	QK STOP		QK RECONSTRUCT	QK START	QK ENROLL	QK ZEROIZE
Access	R/W	R/W	R/W		R/W	R/W	R/W	R/W
Reset	0	0	0		0	0	0	0

Bit 31 – QK TEST PUF QuiddiKey Test Puf

Begin Test PUF operation.

Bit 30 – QK TEST MEMORY QuiddiKey Test Memory

Begin Test Memory operation.

Bit 15 – QK GENERATE RANDOM QuiddiKey Generate Random

Begin Generate Random operation.

Bit 9 – QK WRAP QuiddiKey Wrap

Begin Wrap operation.

Bit 8 – QK WRAP GENERATED RANDOM QuiddiKey Wrap Generated Random

Begin Wrap Generated Random operation.

Bit 7 – QK UNWRAP QuiddiKey Unwrap

Begin Unwrap operation

Bit 6 – QK GET KEY QuiddiKey Get Key

Begin Get Key operation.

Bit 5 – QK STOP QuiddiKey Stop

Begin Stop operation.

Bit 3 – QK RECONSTRUCT QuiddiKey Reconstruct

Begin Reconstruct operation.

Bit 2 – QK START QuiddiKey Start

Begin Start operation.

Bit 1 – QK ENROLL QuiddiKey Enroll

Begin Enroll operation.

Bit 0 – QK ZEROIZE QuiddiKey Zeroize

Begin Zeroize operation