C508_01 Datasheet, PDF (164/267 Pages) Infineon Technologies AG – 8-Bit CMOS Microcontroller

C508
On-Chip Peripheral Components
6.3.4.5 Software Controlled State Switching in Multi-Channel PWM
Modes
In the 4-/5-/6-phase multi-channel PWM modes, the Compare Timer 1 overflow
controlled switching of the follower state can be switched off. Instead of the Compare
Timer 1 overflow, a setting of bit NMCS in SFR CMSEL1 selects the follower state, which
is defined in the Table 6-11 to Table 6-13. Bit ESMC in SFR CMSEL1 enables the
software controlled state switching.
If this software controlled 4-/5-/6-phase multi-channel PWM mode generation is
selected, the Compare Timer 1 can be used for PWM signal generation (compare mode)
in order to modulate the outputs. It can be further used, for example, for timer based
interrupt generation. The waveforms of a PWM output signal in the multi-channel PWM
modes can be selected as shown in Figure 6-34 (static low or high during active phase)
or as shown in Figure 6-35 (Compare Timer 2 controlled modulation during active
phase).
Figure 6-40 shows for the 5-pole PWM timing the possible waveforms of the active
phase when the software controlled state switching in the multi-channel PWM modes is
selected.
User’s Manual
6-99
2001-05