C508_01 Datasheet, PDF (155/267 Pages) Infineon Technologies AG – 8-Bit CMOS Microcontroller

C508
On-Chip Peripheral Components
Figure 6-35 shows the different possibilities for controlling the active phase of a
compare output signal using Compare Timer 2. In this operating mode, which is selected
when bit CMSELx.3 is set, the Compare Timer 2 output signal is switched to the COUTx
or CCx outputs during the active phase of a multi-channel PWM signal. Bit BCMP
(BCON.7) defines whether only COUTx or COUTx and CCx are modulated by the
Compare Timer 2 output signal.
Depending on the bits COUT3I and COUTXI of COINI, the polarity of COUT3 and the
switched CCx/COUTx active phase signal can be identical or inverted.
Bit CMSELx.3 = 1: Compare timer 2 transitions in active phase at COUTx
Compare
Timer 1
Mode 0
Compare
Timer 2
Output Signal
CCx
COUTx
CCx
COUTx
COINI Bit = 1
COUTxI = 1
COUTxI = 0
Compare
Timer 1
Mode 0
Compare
Timer 2
Output Signal
CCx
COUTx
CCx
COUTx
COINI Bit = 0
COUTxI = 0
COUTxI = 1
Active Phase
MCD04071
Figure 6-35 Compare Timer 2 Controlled Active Phase of the Multi-Channel PWM
Modes (with CMSELx.3 = 1)
User’s Manual
6-90
2001-05