21.6.12 PIT64B Write Protection Status Register


Bit	31	30	29	28	27	26	25	24
	ECLASS						SWETYP[1:0]
Access	R						R	R
Reset	0						0	0


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


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


Bit	7	6	5	4	3	2	1	0
					SWE	SEQE	CGD	WPVS
Access					R	R	R	R
Reset					0	0	0	0

Bit 31 – ECLASS Software Error Class (cleared on read)

0 (WARNING): An abnormal access that does not affect system functionality.

1 (ERROR): A write access is performed into PIT64B_MR, PIT64B_LSBR, PIT64B_MSBR while the PIT64B is running.

Bits 25:24 – SWETYP[1:0] Software Error Type (cleared on read)

Value	Name	Description
0	READ_WO	A write-only register has been read (warning).
1	WRITE_RO	A write access has been performed on a read-only register (warning).
2	UNDEF_RW	Access to an undefined address (warning).
3	WEIRD_ACTION	A write access is performed into PIT64B_MR, PIT64B_LSBR, PIT64B_MSBR while the PIT64B is running (abnormal).

Bits 23:8 – WPVSRC[15:0] Write Protection Violation Source

When WPVS=1, WPVSRC indicates the register address offset at which a write access has been attempted.

When WPVS=0 and SWE=1, WPVSRC reports the address of the incorrect software access. As soon as WPVS=1, WPVSRC returns the address of the write-protected violation.

Bit 3 – SWE Software Control Error (cleared on read)

Value	Description
0	No software error has occurred since the last read of PIT64B_WPSR.
1	A software error has occurred since the last read of PIT64B_WPSR. The field SWETYP details the type of software error; the associated incorrect software access is reported in the field WPVSRC (if WPVS=0).

Bit 2 – SEQE Internal Sequencer Error (cleared on read)

Value	Description
0	No peripheral internal sequencer error has occurred since the last read of PIT64B_WPSR.
1	A peripheral internal sequencer error has occurred since the last read of PIT64B_WPSR. This flag can only be set under abnormal operating conditions.

Bit 1 – CGD Clock Glitch Detected (cleared on read)

Value	Description
0	The clock monitoring circuitry has not been corrupted since the last read of PIT64B_WPSR. Under normal operating conditions, this bit is always cleared.
1	The clock monitoring circuitry has been corrupted since the last read of PIT64B_WPSR. This flag can only be set in case of abnormal clock signal waveform (glitch).

Bit 0 – WPVS Write Protection Violation Status (cleared on read)

Value	Description
0	No write protection violation has occurred since the last read of the PIT64B_WPSR.
1	A write protection violation has occurred since the last read of the PIT64B_WPSR. If this violation is an unauthorized attempt to write a protected register, the associated violation is reported into field WPVSRC.

Name:	PIT64B_WPSR
Offset:	0xE8
Reset:	0x00000000
Property:	Read-only