Dwt Mask Register X (Dwt_Maskxr); Dwt Function Register X (Dwt_Functxr) - ST STM32WL5 Series Reference Manual

Debug support (DBG)
38.6.10

DWT mask register x (DWT_MASKxR)

Address offset: 0x024 + 0x010 * x, (x = 0 to 3)
Reset value: 0x0000 0000
31 30 29 28
Res. Res. Res. Res.
15 14 13 12
Res. Res. Res. Res.
Bits 31:5 Reserved, must be kept at reset value.
Bits 4:0 MASK[4:0]: comparator mask size
Provides the size of the ignore mask applied to the access address for address range
matching by comparator n. A debugger can write 0b11111 to this field and then read the
register back to determine the maximum mask size supported.
38.6.11

DWT function register x (DWT_FUNCTxR)

Address offset: 0x028 + 0x010 * x, (x = 0 to 3)
Reset value: 0x0000 0000
31 30 29 28
Res. Res. Res. Res.
15 14 13 12
DATAVADDR0[3:0]
rw rw rw rw
Bits 31:25 Reserved, must be kept at reset value.
Bit 24 MATCHED: comparator match (read only)
Indicates if a comparator match has occurred since the register was last read.
0: No match
1: Match occurred
Bits 23:20 Reserved, must be kept at reset value.
Bits 19:16 DATAVADDR1[3:0]: When the DATAVMATCH and LNK1ENA bits are both 1, this field can hold
the comparator number of a second comparator to use for linked address comparison.
Bits 15:12 DATAVADDR0[3:0]: When the DATAVMATCH and LNK1ENA bits are both 1, this field can hold
the comparator number of a comparator to use for linked address comparison.
Bits 11:10 DATAVSIZE[1:0]: For data value matching, specifies the size of the required data comparison.
0x0: Byte
0x1: Half word
0x2: Word
0x3: reserved
1356/1461
27 26 25 24
Res. Res. Res. Res.
11 10 9
Res. Res. Res. Res.
27 26 25 24
MATCH
Res. Res. Res.
ED
11 10 9
LNK1E DATAV
DATAVSIZE[1:0]
NA MATCH
rw rw rw rw
RM0453 Rev 1
23 22 21
Res. Res. Res.
8 7 6 5
Res. Res. Res.
23 22 21
Res. Res. Res.
r
8 7 6 5
CYCMA EMITR
Res.
TCH ANGE
rw rw
20 19 18 17
Res. Res. Res. Res.
4 3 2 1
MASK[4:0]
rw rw rw rw
20 19 18 17
Res. DATAVADDR1[3:0]
rw rw rw
4 3 2 1
Res. FUNCTION[3:0]
rw rw rw
RM0453
16
Res.
0
rw
16
rw
0
rw