FTMx_COMBINEn field descriptions (continued)
Field
Description
0
COMBINE
Combine Channels
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.
12.3.19 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.
Address: Base a 22h offset
Bit
7
6
5
4
3
2
1
0
Read
Write
Reset
0
0
0
0
0
0
0
0
FTMx_DEADTIME field descriptions
Field
Description
7–6
DTPS
Deadtime Prescaler Value
Selects the division factor of the system clock. This prescaled clock is used by the deadtime counter.
DTPS 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.
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.
• When DTVAL is 2, 2 counts are inserted.
This pattern continues up to a possible 63 counts.
DTVAL is write protected. It can be written only when MODE[WPDIS] = 1.
Chapter 12 FlexTimer Module (FTM)
MC9S08PT60 Reference Manual, Rev. 4, 08/2014
Freescale Semiconductor, Inc.
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