NXP Semiconductors MWCT101 S Series, Reference Manual

Page: 1155 / 1761

41.4.3.14.2 Function
This register selects the deadtime prescaler and value.
41.4.3.14.3 Diagram
Bits 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R 0
DTVALEX
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Bits 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R 0
DTPS DTVAL
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
41.4.3.14.4 Fields
Field Function
31-20
—
Reserved
19-16
DTVALEX
Extended Deadtime Value
This field is a bit extension of the DTVAL field. It defines the 4 most significant bits of the deadtime value.
The maximum deadtime value is extended to 1023 using the concatenation {DTVALEX, DTVAL}.
Deadtime insert value = (DTPS × {DTVALEX, DTVAL}).
This field is write protected. It can be written only when MODE[WPDIS] = 1.
NOTE: If full compatibility is needed with previous software versions, write 0 to DTVALEX bits.
15-8
—
Reserved
7-6
DTPS
Deadtime Prescaler Value
Selects the division factor of the FTM input clock. This prescaled clock is used by the deadtime counter.
This field is write protected. It can be written only when MODE[WPDIS] = 1.
0xb - Divide the FTM input clock by 1.
10b - Divide the FTM input clock by 4.
11b - Divide the FTM input clock by 16.
5-0
DTVAL
Deadtime Value
Selects the deadtime value.
This field is write protected. It can be written only when MODE[WPDIS] = 1.
Chapter 41 FlexTimer Module (FTM)
MWCT101xS Series Reference Manual, Rev. 3, 07/2019
NXP Semiconductors 1155