User Manual
512
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
Capture/Compare Unit 6 (CCU6)
Additional Specific Functions
• Block commutation for Brushless DC-drives implemented
• Position detection via Hall-sensor pattern
• Noise filter supported for position input signals
• Automatic rotational speed measurement and commutation control for block commutation
• Integrated error handling
• Fast emergency stop without CPU load via external signal (CTRAP)
• Control modes for multi-channel AC-drives
• Output levels can be selected and adapted to the power stage
18.2
Introduction
The CCU6 unit is made up of a Timer T12 Block with three capture/compare channels and a Timer T13 Block
with one compare channel. The T12 channels can independently generate PWM signals or accept capture
triggers, or they can jointly generate control signal patterns to drive AC-motors or inverters.
A rich set of status bits, synchronized updating of parameter values via shadow registers, and flexible
generation of interrupt request signals provide means for efficient software-control.
Note:
The capture/compare module itself is named CCU6 (capture/compare unit 6). A capture/compare
channel inside this module is named CC6x.
18.2.1
Block Diagram
The Timer T12 can work in capture and/or compare mode for its three channels. The modes can also be
combined (e.g. a channel works in compare mode, whereas another channel works in capture mode). The
Timer T13 can work in compare mode only. The multi-channel control unit generates output patterns which
can be modulated by T12 and/or T13. The modulation sources can be selected and combined for the signal
modulation.