C868_02 Datasheet, PDF (84/244 Pages) Infineon Technologies AG – 8 - Bit CMOS Microcontroller

C868
On-Chip Peripheral Components
In Figure 4-17, the signals CC6x_T12_o and COUT6x_T12_o are inputs to the
modulation control block, where they can be combined with other PWM signals.
4.7.1.6 Switching Examples in edge-aligned Mode
The following figure shows two switching examples in edge-aligned mode with duty
cycles near to 0% and near to 100%. The compare-, period- or zero-matches lead to
modifications of the compare state and the shadow transfer (if requested by STE12=’1’)
in the next clock cycle.
T12P
T12P-1
T12P-2
compare-match =
period-match zero-match
1
0
0
T12clk
T12P
T12P-1
T12P-2
compare-match =
period-match
zero-match
T12
1
0
0
CDIR
1
0
1
0
STE12
< T12P-3
active
0
T12 shadow transfer
T12P
passive
T12P
CC6x
active
compare
state
T12 shadow transfer
Figure 4-18 Switching Examples in edge-aligned Mode
4.7.1.7 Switching Examples in center-aligned Mode
The following figures show examples of the switching of the compare state and the T12
shadow transfer according to the programmed compare values.
User’s Manual
4-40
V 0.4, 2002-01