C868_02 Datasheet, PDF (90/244 Pages) Infineon Technologies AG – 8 - Bit CMOS Microcontroller

C868
On-Chip Peripheral Components
4.7.1.11 Hysteresis-Like Control Mode
The hysteresis-like control mode (MSEL6x = ’1001’) offers the possibility to switch off the
PWM output if the input CCPOSx becomes ’0’ by resetting bit CC6xST. This can be used
as a simple motor control feature by using a comparator indicating e.g. over current.
While CCPOSx=’0’, the PWM outputs of the corresponding channel are driving their
passive levels. The setting of bit CC6xST is only possible while CCPOSx=’1’.
CCPOSx
fper
in
R
edge
detection
F
OR
hyst_x_state
AND
hyst_x_ev
MSEL6x=
’1001’
Figure 4-25 Hysteresis-Like Control Mode Logic
User’s Manual
4-46
V 0.4, 2002-01