Information

FTMx_CnSC field descriptions (continued)
Field Description
0 Disable channel interrupts. Use software polling.
1 Enable channel interrupts.
5
MSB
Channel Mode Select
Used for further selections in the channel logic. Its functionality is dependent on the channel mode. See
Table 37-7.
This field is write protected. It can be written only when MODE[WPDIS] = 1.
4
MSA
Channel Mode Select
Used for further selections in the channel logic. Its functionality is dependent on the channel mode. See
Table 37-7.
This field is write protected. It can be written only when MODE[WPDIS] = 1.
3
ELSB
Edge or Level Select
The functionality of ELSB and ELSA depends on the channel mode. See Table 37-7.
This field is write protected. It can be written only when MODE[WPDIS] = 1.
2
ELSA
Edge or Level Select
The functionality of ELSB and ELSA depends on the channel mode. See Table 37-7.
This field is write protected. It can be written only when MODE[WPDIS] = 1.
1
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
0
DMA
DMA Enable
Enables DMA transfers for the channel.
0 Disable DMA transfers.
1 Enable DMA transfers.
37.3.7 Channel (n) Value (FTMx_CnV)
These registers contain the captured FTM counter value for the input modes or the match
value for the output modes.
In Input Capture, Capture Test, and Dual Edge Capture modes, any write to a CnV
register is ignored.
In output modes, writing to a CnV register latches the value into a buffer. A CnV register
is updated with the value of its write buffer according to Registers updated from write
buffers.
If FTMEN = 0, this write coherency mechanism may be manually reset by writing to the
CnSC register whether BDM mode is active or not.
Chapter 37 FlexTimer Module (FTM)
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
Freescale Semiconductor, Inc.
Preliminary
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