16.13.13 Device Identification

Table 16-21. 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:	DID
Offset:	0x0120
Reset:	Device dependent
Property:	PAC Write-Protection


Bit	31	30	29	28	27	26	25	24
	REVISION[3:0]				PRODUCT[7:4]
Access	R	R	R	R	R	R	R	R
Reset	x	x	x	x	x	x	x	x


Bit	23	22	21	20	19	18	17	16
	PRODUCT[3:0]				DEVSEL[7:4]
Access	R	R	R	R	R	R	R	R
Reset	x	x	x	x	x	x	x	x


Bit	15	14	13	12	11	10	9	8
	DEVSEL[3:0]				MANID[10:7]
Access	R	R	R	R	R	R	R	R
Reset	x	x	x	x	0	0	0	0


Bit	7	6	5	4	3	2	1	0
	MANID[6:0]							MARKER
Access	R	R	R	R	R	R	R	R
Reset	0	1	0	1	0	0	1	1

Bits 31:28 – REVISION[3:0] Revision Number

Identifies the revision of the product.

0000 = A0

Bits 27:20 – PRODUCT[7:0] Product

The value of this field corresponds to the Product part of the ordering code.

Bits 19:12 – DEVSEL[7:0] Device Select

This bit field identifies a device within a product. Refer to the Ordering Information for device configurations and corresponding values for Flash memory density, pin count, and device variant.

Bits 11:1 – MANID[10:0] Manufacturer ID

This is duplicate of the JEP-106 CC and ID code present in the Device Service Unit Coresight ROM table that always read 0x29.

Bit 0 – MARKER Marker bit

Marker Bit Always read as ‘1’.