Table 39-15. FTM behavior when the chip Is in BDM mode (continued)
BDMMODE
FTM
Counter
CH(n)F Bit FTM Channels Output Writes to MOD, CNTIN, and C(n)V Registers
11 Functional
mode
can be set Functional mode Functional mode
Note that if BDMMODE[1:0] = 2’b00 then the channels outputs remain at the value
when the chip enters in BDM mode, because the FTM counter is stopped. However, the
following situations modify the channels outputs in this BDM mode.
• Write any value to CNT register; see Counter reset. In this case, the FTM counter is
updated with the CNTIN register value and the channels outputs are updated to the
initial value – except for those channels set to Output Compare mode.
• FTM counter is reset by PWM Synchronization mode; see FTM counter
synchronization. In this case, the FTM counter is updated with the CNTIN register
value and the channels outputs are updated to the initial value – except for channels
in Output Compare mode.
• In the channels outputs initialization, the channel (n) output is forced to the CH(n)OI
bit value when the value 1 is written to INIT bit. See Initialization.
Note
The BDMMODE[1:0] = 2’b00 must not be used with the Fault
control. Even if the fault control is enabled and a fault condition
exists, the channels outputs values are updated as above.
Note
If CLKS[1:0] = 2'b00 in BDM, a non-zero value is written to
CLKS in BDM, and CnV = CNTIN when the BDM is disabled,
then the CHnF bit is set (since if the channel is a 0% EPWM
signal) when the BDM is disabled.
39.4.27
Intermediate load
The PWMLOAD register allows to update the MOD, CNTIN, and C(n)V registers with
the content of the register buffer at a defined load point. In this case, it is not required to
use the PWM synchronization.
There are multiple possible loading points for intermediate load:
Functional description
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
1020 NXP Semiconductors
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