XC164-16 Datasheet, PDF (166/417 Pages) Infineon Technologies AG – 16-Bit Single-Chip Microcontroller with C166SV2 Core Volume 2 (of 2): Peripheral Units

XC164-16 Derivatives
Peripheral Units (Vol. 2 of 2)
Capture/Compare Unit 6 (CAPCOM6)
While counting down, the output line DTRx is 0. Thus, the reload value determines the
length of the low phase (the passive state) of the output signal, and therefore the delay
of the 0-to-1 transition of the State Bit outputs. The active state of the output signal is
represented by a 1.
The programmable reload value DTM applies to all three channels.
When the counter reaches zero, the counter is stopped and output line DTRx is set to 1.
While DTRx is 0 both outputs are forced into passive state. While DTRx is 1 the outputs
can go to active state.
Each of the three dead-time counters has its individual enable control bit, DTEx, for the
trigger input, DTCx_IN. A reload of a counter is only possible while the counter is not
running. This avoids a possible retriggering of the dead-time if a change in the State Bit
CC6xST is detected. Figure 18-17 illustrates the waveforms of the dead-time generation
(passive state = 0). The associated registers are detailed below.
T12 Count
CC6xST
CC6xST
DTCx_IN
Down
Counter
DTRx
CC6xST &
DTRx
CC6xST &
DTRx
Compare
Figure 18-17 Dead-Time Generation Waveforms
User’s Manual
CAPCOM6_X, V2.0
18-22
MCT05521
V2.1, 2004-03