Texas Instruments TMS320 2833 Series User Manual

PSCLK
OSHT
EPWMxA in
EPWMxA out
Prog. pulse width
(OSHTWTH)
Start OSHT pulse
Sustaining pulses
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SPRUI07–March 2020
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Enhanced Pulse Width Modulator (ePWM) Module
3.2.6.4.1 One-Shot Pulse
The width of the first pulse can be programmed to any of 16 possible pulse width values. The width or
period of the first pulse is given by:
T
1stpulse
= T
SYSCLKOUT
× 8 × OSHTWTH
Where T
SYSCLKOUT
is the period of the system clock (SYSCLKOUT) and OSHTWTH is the four control bits
(value from 1 to 16)
Figure 3-34 shows the first and subsequent sustaining pulses and Table 7.3 gives the possible pulse width
values for a SYSCLKOUT = 100 MHz.
Figure 3-34. PWM-Chopper Submodule Waveforms Showing the First Pulse and Subsequent Sustaining
Pulses
Table 3-17. Possible Pulse Width Values for
SYSCLKOUT = 100 MHz
OSHTWTHz
(hex)
Pulse Width
(nS)
0 80
1 160
2 240
3 320
4 400
5 480
6 560
7 640
8 720
9 800
A 880
B 960
C 1040
D 1120
E 1200
F 1280

Texas Instruments TMS320 2833 Series Specifications

General

Brand	Texas Instruments
Model	TMS320 2833 Series
Category	Controller
Language	English