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Texas Instruments TMS570LC4357

Texas Instruments TMS570LC4357
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0000
FFFFh
TBPRD
TBCTR[0-15]
time
CTR = PRD
(SycnOut)
Master Module
Φ2
Phase = 120°
0000
FFFFh
TBPRD
TBCTR[0-15]
time
SyncIn
Slave Module
TBPHS
600 600
600 600
200
200
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Application Examples
2069
SPNU563AMarch 2018
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Copyright © 2018, Texas Instruments Incorporated
Enhanced Pulse Width Modulator (ePWM) Module
Figure 35-62 shows the associated timing waveforms for this configuration. Here, TBPRD = 600 for both
master and slave. For the slave, TBPHS = 200 (200/600 × 360° = 120°). Whenever the master generates
a SyncIn pulse (CTR = PRD), the value of TBPHS = 200 is loaded into the slave TBCTR register so the
slave time-base is always leading the master's time-base by 120°.
Figure 35-62. Timing Waveforms Associated With Phase Control Between 2 Modules

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