32.30 MPDDRC Write Protection Mode Register

See Register Write Protection for the list of registers that can be protected.

Name:	MPDDRC_WPMR
Offset:	0xE4
Reset:	0x00000000
Property:	Read/Write


Bit	31	30	29	28	27	26	25	24
	WPKEY[23:16]
Access	W	W	W	W	W	W	W	W
Reset	0	0	0	0	0	0	0	0


Bit	23	22	21	20	19	18	17	16
	WPKEY[15:8]
Access	W	W	W	W	W	W	W	W
Reset	0	0	0	0	0	0	0	0


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


Bit	7	6	5	4	3	2	1	0
				FIRSTE			WPITEN	WPEN
Access				R/W			R/W	R/W
Reset				0			0	0

Bits 31:8 – WPKEY[23:0] Write Protection Key

Value

Name

Description

0x444452

PASSWD

Writing any other value in this field aborts the write operation of the WPEN and WPITEN bits.

Always reads as 0.

Bit 4 – FIRSTE First Error Report Enable

Value	Description
0	The last write protection violation source is reported in MPDDRC_WPSR.WPVSRC and the last software control error type is reported in MPDDRC_WPSR.SWETYP. The MPDDRC_ISR.SEC flag is set at the first error occurrence within a series.
1	Only the first write protection violation source is reported in MPDDRC_WPSR.WPVSRC and only the first software control error type is reported in MPDDRC_WPSR.SWETYP. The MPDDRC_ISR.SEC flag is set at the first error occurrence within a series.

Bit 1 – WPITEN Write Protection Interruption Enable

Value	Description
0	Disables the write protection on interrupt registers if WPKEY corresponds to 0x444452 (“DDR” in ASCII).
1	Enables the write protection on interrupt registers if WPKEY corresponds to 0x444452 (“DDR” in ASCII).

Bit 0 – WPEN Write Protection Enable

Value	Description
0	Disables the write protection if WPKEY corresponds to 0x444452 (“DDR” in ASCII).
1	Enables the write protection if WPKEY corresponds to 0x444452 (“DDR” in ASCII).

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