TM4C123BE6PZ_15 Datasheet, PDF (716/1310 Pages) Texas Instruments – Tiva TM4C123BE6PZ Microcontroller

General-Purpose Timers
Figure 11-5. 16-Bit PWM Mode Example
Count
GPTMTnR=GPTMnMR
0xC350
GPTMTnR=GPTMnMR
0x411A
TnEN set
Output
Signal
TnPWML = 0
TnPWML = 1
Time
When synchronizing the timers using the GPTMSYNC register, the timer must be properly configured
to avoid glitches on the CCP outputs. Both the TnPLO and the TnMRSU bits must be set in the
GPTMTnMR register. Figure 11-6 on page 716 shows how the CCP output operates when the TnPLO
and TnMRSU bits are set and the GPTMTnMATCHR value is greater than the GPTMTnILR value.
Figure 11-6. CCP Output, GPTMTnMATCHR > GPTMTnILR
GPTMnILR
GPTMnMATCHR
CCP
CCP set if GPTMnMATCHR ≠ GPTMnILR
Figure 11-7 on page 717 shows how the CCP output operates when the PLO and MRSU bits are set
and the GPTMTnMATCHR value is the same as the GPTMTnILR value. In this situation, if the PLO
bit is 0, the CCP signal goes high when the GPTMTnILR value is loaded and the match would be
essentially ignored.
716
June 12, 2014
Texas Instruments-Production Data