Technical Reference Manual
Bits Name
SW
HW
Default or
Enum
Description
(Continuation)
-
If
the
descriptor
type
is
'single',
the
trigger
results
in
the
execution
of
a
single
transfer.
-
If
the
descriptor
type
is
'1D'
or
'2D',
the
trigger
results
in
the
execution
of
a
1D
transfer.
'2':
A
trigger
results
in
the
execution
of
the
current
descriptor.
'3':
A
trigger
results
in
the
execution
of
the
current
descriptor
and
continues
(without
requiring
another
input
trigger)
with
the
execution
of
the
next
descriptor
using
the
next
descriptor's
information.
[29:28]
DATA_SIZE
Specifies
the
data
element
size:
'0':
Byte
(8
bits).
'1':
Halfword
(16
bits).
'2':
Word
(32
bits).
DATA_SIZE,
SRC_TRANSFER_SIZE
and
DST_TRANSFER_SIZE
together
determine
how
data
elements
are
transferred.
The
following
are
the
9
legal
settings:
-
DATA
is
8
bit,
SRC
is
8
bit,
DST
is
8
bit.
-
DATA
is
8
bit,
SRC
is
32
bit
(higher
24
bits
are
dropped),
DST
is
8
bit.
-
DATA
is
8
bit,
SRC
is
8
bit,
DST
is
32
bit
(higher
24bits
are
made
'0').
-
DATA
is
8
bit,
SRC
is
32
bit
(higher
24
bits
are
dropped),
DST
is
32
bit
(higher
24
bits
are
made
'0').-
DATA
is
16
bit,
SRC
is
16
bit,
DST
is
16
bit.
-
DATA
is
16
bit,
SRC
is
32
bit
(higher
16
bits
are
dropped),
DST
is
16
bit.
-
DATA
is
16
bit,
SRC
is
16
bit,
DST
is
32
bit
(higher
16
bits
are
made
'0').
-
DATA
is
16
bit,
SRC
is
32
bit
(higher
16
bits
are
dropped),
DST
is
32
bit
(higher
16
bits
are
made
'0').
-
DATA
is
32
bit,
SRC
is
32
bit,
DST002-is
32
bit.
[31:30]
DESCR_TYPE
Specifies
the
descriptor
type
(not
to
be
confused
withthe
trig
ger
type):
'0':
Single
transfer.
The
DESCR_X_CTL
and
DESCR_Y_CTL
registers
are
not
present
and
DESCR_NEXT_PTR
is
at
offset
0x0c.
[27]
DST_TRANSFER_SIZE
Specifies
the
bus
transfer
size
to
the
destination
location:
'0':
As
specified
by
DATA_SIZE.
'1':
Word
(32
bits).
Distinguishing
bus
transfer
size
from
data
element
size
allows
for
destination
components
with
data
elements
that
are
smaller
than
their
32-bit
bus
interface
width.
E.g.,
a
DAC
destination
has
a
32-bit
bus
transfer
size,but
only
requires
a
16-bit
data
element.
[26]
SRC_TRANSFER_SIZE
Specifies
the
bus
transfer
size
to
the
source
location:'0':
As
s
pecified
by
DATA_SIZE.
'1':
Word
(32
bits).
Distinguishing
bus
transfer
size
from
data
element
size
allows
for
source
components
with
data
elements
that
are
smaller
than
their
32-bit
bus
interface
width.
E.g.,an
ADC
source
has
a
32-bit
bus
transfer
size,
but
only
provides
a
16-bit
data
element.
Note:
a
disabled
channel
will
ignore
its
input
trigger.
[24]
CH_DISABLE
Specifies
whether
the
channel
is
disabled
or
not
after
completion
of
the
current
descriptor
(independent
of
the
value
of
the
DESCR_NEXT_PTR
value):
'0':
Channel
is
not
disabled.
'1':
Channel
is
disabled.
002-29852
Rev.
*B
863
2022-04-18
TRAVEO™ T2G Automotive MCU: TVII-B-E-4M body controller entry registers