31.6.9 ECC Control REGISTER

Table 31-40. 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:	ECCCTRL
Offset:	0x20
Reset:	0x00000040
Property:	R/W


Bit	31	30	29	28	27	26	25	24

Access
Reset


Bit	23	22	21	20	19	18	17	16

Access
Reset


Bit	15	14	13	12	11	10	9	8
	SECCNT[7:0]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0


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

Bits 15:8 – SECCNT[7:0] SECCNT is the start value of an internal counter that decrements (by 1 per panel reporting an SEC) its count value each time an SEC occurs on a flash access (including the CTL[2:0] bits if in Dynamic ECC Mode). The internal counter stops decrementing at zero. If an SEC error occurs when the internal counter is zero, the SERR flag bit is set. Note: This field counts all SEC errors and is not limited to SEC errors on unique addresses.

SECCNT is the start value of an internal counter that decrements by 1 for each occurrence of a SEC event (including ECC CTL[2:0] bit if in Dynamic ECC Mode). The SECCNT counter stops decrementing at zero. If an SEC error occurs when the SECCNT counter is zero, the INTFLAG.SERR flag bit is set.

Note: This field counts all SEC errors and is not limited to SEC errors on unique addresses.

Bit 6 – ECCUNLCK The read value dictates the unlock state. Note: This field can only be modified when ECCUNLCK=1

Note: This field can only be modified when ECCUNLCK=1.

The read value dictates the unlock state:

Value	Name	Description
1	UNLOCKED	ECCUNLCK and ECCCTL[1:0] can be written
0	LOCKED	ECCUNLCK and ECCCTL[1:0] cannot be written

Bits 5:4 – ECCCTL[1:0] Condition: {PFM_PNL_DATA_MSB==71} 10 (ECC) = Reserved - Resolves to STRICT 01 (DYNAMIC) = Reserved - Resolves to STRICT Note: This field can only be modified when ECCUNLCK=1

Restricts one or more NVMOPs:

Value	Name	Description
3	DISABLE	ECC Writes with No Error Check Reads
0	STRICT	ECC Writes with ECC Reads
3	DISABLE	Dynamic Writes with No Error Check Reads
2	ECC	ECC Writes with Dynamic Reads (NVMOP = Single Program Operation disabled)
1	DYNAMIC	Dynamic Writes with Dynamic Reads
0	STRICT	ECC Writes with ECC Reads (NVMOP = Single Program Operation disabled)