Technical Reference Manual
002-29852 Rev. *B
Bits Name
SW
HW
Default or
Enum
Description
5
EMITRANGE
RW
R
0
If the implementation supports trace sampling, enables
generation of Data trace address packets, that hold
Daddr[15:0]:
0 Data trace address packets disabled.
1 Enable Data trace address packet generation.
For more information see Address comparison
functions on Arm TRM page C1-781. If
DWT_CTRL.NOTRCPKT is RAZ then this bit is
UNK/SBZP.
7
CYCMATCH
RW
R
0
DWT_FUNCTION0 only.
If the implementation supports cycle counting, enable
cycle count comparison for comparator 0:
0 No comparison is performed.
1 Compare DWT_COMP0 with the cycle counter,
DWT_CYCCNT.
If DWT_CTRL.NOCYCCNT is RAZ then this bit is
UNK/SBZP.
8
DATAVMATCH
RW
R
0
Enables data value comparison, if supported:
0 Perform address comparison.
1 Perform data value comparison.
For comparator 0, when the CYCMATCH is set to 1,
DATAVMATCH must be set to 0 for it to perform cycle
count comparison.
See LNK1ENA, DATAVSIZE, DATAVADDR0 and
DATAVADDR1 for related information.
If the implementation does not support data value
comparison this bit is RAZ/WI.
9
LNK1ENA
RW
R
0
Indicates whether the implementation supports use of
a second linked comparator:
0 Second linked comparator not supported.
1 Second linked comparator supported.
When LNK1ENA is RAO, the DATAVADDR1 field
specifies the comparator to use as the second linked
comparator.
This bit is read-only
10:11 DATAVSIZE
RW
R
0
For data value matching, specifies the size of the
required data comparison:
00 Byte.
01 Halfword.
10 Word.
The value 0b11 is reserved. Using this value means
behavior is UNPREDICTABLE.
12:15 DATAVADDR0
RW
R
0
When the DATAVMATCH bit is set to 1 this field can
hold the comparator number of a comparator to use for
linked address comparison. For more information see
LinkAddr support on Arm TRM page C1-789.
The DWT unit ignores the value of this field if the
DATAVMATCH bit is set to 0.
16:19 DATAVADDR1
RW
R
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. For more information see LinkAddr
support on Arm TRM page C1-789.
The DWT unit ignores the value of this field unless the
LNK1ENA bit is RAO and the DATAVMATCH bit is set
to 1.
If LNK1ENA is RAZ, this field is RAZ/WI.
354
2022-04-18
TRAVEO™ T2G Automotive MCU: TVII-B-E-4M body controller entry registers