Debug support (DBG) RM0453
1356/1461 RM0453 Rev 1
38.6.10 DWT mask register x (DWT_MASKxR)
Address offset: 0x024 + 0x010 * x, (x = 0 to 3)
Reset value: 0x0000 0000
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 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
1514131211109876543210
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. MASK[4:0]
rw rw rw rw rw
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.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. Res. Res. Res.
MATCH
ED
Res. Res. Res. Res. DATAVADDR1[3:0]
rrwrwrwrw
1514131211109876543210
DATAVADDR0[3:0] DATAVSIZE[1:0]
LNK1E
NA
DATAV
MATCH
CYCMA
TCH
Res.
EMITR
ANGE
Res. FUNCTION[3:0]
rw rw rw rw rw rw rw rw rw rw 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
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