C504 Datasheet, PDF (22/49 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

C504
Capture/Compare Unit
The Capture / Compare Unit (CCU) of the C504 is built up by a 16-bit 3-channel capture/compare
unit (CAPCOM) and a 10-bit 1-channel compare unit (COMP). In compare mode, the CAPCOM unit
provides two output signals per channel, which can have inverted signal polarity and non-
overlapping pulse transitions. The COMP unit can generate a single PWM output signal and is
further used to modulate the CAPCOM output signals. In capture mode, the value of the compare
timer 1 is stored in the capture registers if a signal transition occurs at the pins CCx. Figure 6 shows
the block diagram of the CCU.
Figure 6
Block Diagram of the CCU
Semiconductor Group
22