PIC32CX2051MTG128 SEFC1 registers

The 7 registers of SEFC1 (Secure Embedded Flash Controller), from 0x460E0200, with their reset value and every field. The PIC32CX2051MTG128 has 2875 registers in 60 peripherals, one page each.

SEFC1 Secure Embedded Flash Controller

EEFC_FMRSEFC Flash Mode Register

Address: 0x460E0200
Reset: 0x00000000
Access: read/write
Size: 32-bit

5 fields

Field	Bits	What it does
ALWAYS1	27	Always Written to One
CLOE	26	Code Loop Optimization Enable
SCOD	16	Sequential Code Optimization Disable
FWS	11:8	Flash Wait State
FRDY	0	Flash Ready Interrupt Enable

EEFC_FCRSEFC Flash Command Register

Address: 0x460E0204
Reset: 0x00000000
Access: write only
Size: 32-bit

3 fields

Field	Bits	What it does
FARG	23:8	Flash Command Argument
FCMD	7:0	Flash Command `0` Get Flash descriptor `1` Write page `2` Write page and lock `7` Erase pages (8, 16, 32, 64) `8` Set lock bit `9` Clear lock bit `10` Get lock bit `11` Set GPNVM bit `12` Clear GPNVM bit `13` Get GPNVM bit `14` Start read unique identifier `15` Stop read unique identifier `16` Get CALIB bit `17` Erase sector `18` Write user signature `19` Erase user signature `20` Start read user signature `21` Stop read user signature `23` Suspend `24` Resume `25` Send cryptographic key
FKEY	31:24	Flash Writing Protection Key `90` The 0x5A value enables the command defined by the bits in the register. If the field is written with a different value, the write is not performed and no action is started.

EEFC_FSRSEFC Flash Status Register

Address: 0x460E0208
Reset: 0x00000000
Access: read only
Size: 32-bit

14 fields

Field	Bits	What it does
MECCEMSBL	23	Multiple ECC Error on MSB Part of the Memory Lock Bits
SECCEMSBL	22	Single ECC Error on MSB Part of the Memory Lock Bits
MECCELSBL	21	Multiple ECC Error on LSB Part of the Memory Lock Bits
SECCELSBL	20	Single ECC Error on LSB Part of the Memory Lock Bits
MECCEMSBD	19	Multiple ECC Error on MSB Part of the Memory Flash Data Bus (cleared on read)
SECCEMSBD	18	Single ECC Error on MSB Part of the Memory Flash Data Bus (cleared on read)
MECCELSBD	17	Multiple ECC Error on LSB Part of the Memory Flash Data Bus (cleared on read)
SECCELSBD	16	Single ECC Error on LSB Part of the Memory Flash Data Bus (cleared on read)
FLSUSP	5	Flash Suspended Status (cleared when resuming the programming operation)
WPERR	4	Write Protection Error Status (cleared on read)
FLERR	3	Flash Error Status (cleared when a programming operation starts)
FLOCKE	2	Flash Lock Error Status (cleared on read or by writing EEFC_FCR)
FCMDE	1	Flash Command Error Status (cleared on read)
FRDY	0	Flash Ready Status (cleared when Flash is busy)

EEFC_FRRSEFC Flash Result Register

Address: 0x460E020C
Reset: 0x00000000
Access: read only
Size: 32-bit

1 field

Field	Bits	What it does
FVALUE	31:0	Flash Result Value

EEFC_USRSEFC User Signature Rights Register

Address: 0x460E0210
Reset: 0x00000000
Access: read/write
Size: 32-bit

32 fields

Field	Bits	What it does
LOCKUSRB6	30	Lock User Signature Rights for User Signature Block 6
LOCKUSRB5	29	Lock User Signature Rights for User Signature Block 5
LOCKUSRB4	28	Lock User Signature Rights for User Signature Block 4
LOCKUSRB3	27	Lock User Signature Rights for User Signature Block 3
LOCKUSRB2	26	Lock User Signature Rights for User Signature Block 2
LOCKUSRB1	25	Lock User Signature Rights for User Signature Block 1
LOCKUSRB0	24	Lock User Signature Rights for User Signature Block 0
PRIVUSB7	23	Privileged Access for User Signature Block 7
PRIVUSB6	22	Privileged Access for User Signature Block 6
PRIVUSB5	21	Privileged Access for User Signature Block 5
PRIVUSB4	20	Privileged Access for User Signature Block 4
PRIVUSB3	19	Privileged Access for User Signature Block 3
PRIVUSB2	18	Privileged Access for User Signature Block 2
PRIVUSB1	17	Privileged Access for User Signature Block 1
PRIVUSB0	16	Privileged Access for User Signature Block 0
WRENUSB7	15	Write Enable for User Signature Block 7
WRENUSB6	14	Write Enable for User Signature Block 6
WRENUSB5	13	Write Enable for User Signature Block 5
WRENUSB4	12	Write Enable for User Signature Block 4
WRENUSB3	11	Write Enable for User Signature Block 3
WRENUSB2	10	Write Enable for User Signature Block 2
WRENUSB1	9	Write Enable for User Signature Block 1
WRENUSB0	8	Write Enable for User Signature Block 0
RDENUSB7	7	Read Enable for User Signature Block 7
RDENUSB6	6	Read Enable for User Signature Block 6
RDENUSB5	5	Read Enable for User Signature Block 5
RDENUSB4	4	Read Enable for User Signature Block 4
RDENUSB3	3	Read Enable for User Signature Block 3
RDENUSB2	2	Read Enable for User Signature Block 2
RDENUSB1	1	Read Enable for User Signature Block 1
RDENUSB0	0	Read Enable for User Signature Block 0
LOCKUSRB7	31	Lock User Signature Rights for User Signature Block 7

EEFC_KBLRSEFC Key Bus Lock Register

Address: 0x460E0214
Reset: 0x00000000
Access: read/write
Size: 32-bit

8 fields

Field	Bits	What it does
KBTLUSB7	7	Key Bus Transfer Lock from User Signature Block 7
KBTLUSB6	6	Key Bus Transfer Lock from User Signature Block 6
KBTLUSB5	5	Key Bus Transfer Lock from User Signature Block 5
KBTLUSB4	4	Key Bus Transfer Lock from User Signature Block 4
KBTLUSB3	3	Key Bus Transfer Lock from User Signature Block 3
KBTLUSB2	2	Key Bus Transfer Lock from User Signature Block 2
KBTLUSB1	1	Key Bus Transfer Lock from User Signature Block 1
KBTLUSB0	0	Key Bus Transfer Lock from User Signature Block 0

EEFC_WPMRWrite Protection Mode Register

Address: 0x460E02E4
Reset: 0x00000000
Access: read/write
Size: 32-bit

7 fields

Field	Bits	What it does
ERASEWL	7	Erase and Write Lock
USRWP	4	User Signature Write Protection
ERASEWP	3	Erase and Write Protection
LOCKWP	2	Lock Bit Write Protection
GPNVMWP	1	GPNVM Bit Write Protection
WPEN	0	Write Protection Enable
WPKEY	31:8	Write Protection Key `4539971` Writing any other value in this field aborts the write operation. Always reads as 0.