Information

FTMx_COMBINE field descriptions (continued)
Field Description
0 The channel (n+1) output is the same as the channel (n) output.
1 The channel (n+1) output is the complement of the channel (n) output.
0
COMBINE0
Combine Channels For n = 0
Enables the combine feature for channels (n) and (n+1).
This field is write protected. It can be written only when MODE[WPDIS] = 1.
0 Channels (n) and (n+1) are independent.
1 Channels (n) and (n+1) are combined.
35.3.15 Deadtime Insertion Control (FTMx_DEADTIME)
This register selects the deadtime prescaler factor and deadtime value. All FTM channels
use this clock prescaler and this deadtime value for the deadtime insertion.
Addresses: FTM0_DEADTIME is 4003_8000h base + 68h offset = 4003_8068h
FTM1_DEADTIME is 4003_9000h base + 68h offset = 4003_9068h
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
FTMx_DEADTIME field descriptions
Field Description
31–8
Reserved
This read-only field is reserved and always has the value zero.
7–6
DTPS
Deadtime Prescaler Value
Selects the division factor of the system clock. This prescaled clock is used by the deadtime counter.
This field is write protected. It can be written only when MODE[WPDIS] = 1.
0x Divide the system clock by 1.
10 Divide the system clock by 4.
11 Divide the system clock by 16.
5–0
DTVAL
Deadtime Value
Selects the deadtime insertion value for the deadtime counter. The deadtime counter is clocked by a
scaled version of the system clock. See the description of DTPS.
Deadtime insert value = (DTPS × DTVAL).
DTVAL selects the number of deadtime counts inserted as follows:
When DTVAL is 0, no counts are inserted.
When DTVAL is 1, 1 count is inserted.
Table continues on the next page...
Chapter 35 FlexTimer Module (FTM)
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
Freescale Semiconductor, Inc. 717