Pwm-Chopper Submodule Waveforms Showing The First Pulse And Subsequent Sustaining Pulses; Possible Pulse Width Values For Sysclkout = 80 Mhz - Texas Instruments Concerto F28M36 Series Technical Reference Manual

ePWM Submodules
7.2.6.4.1 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 = T
1stpulse SYSCLKOUT
Where T is the period of the system clock (SYSCLKOUT) and OSHTWTH is the four control bits
SYSCLKOUT
(value from 1 to 16)
Figure 7-36 shows the first and subsequent sustaining pulses and Table 7.3 gives the possible pulse width
values for a SYSCLKOUT = 80 MHz.
Figure 7-36. PWM-Chopper Submodule Waveforms Showing the First Pulse and Subsequent Sustaining
EPWMxA in
EPWMxA out
722
C28 Enhanced Pulse Width Modulator (ePWM) Module
× 8 × OSHTWTH
Start OSHT pulse
PSCLK
Prog. pulse width
(OSHTWTH)
OSHT
Sustaining pulses
Table 7-19. Possible Pulse Width Values for
SYSCLKOUT = 80 MHz
OSHTWTHz
(hex)
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Copyright © 2012–2019, Texas Instruments Incorporated
Pulses
Pulse Width
(nS)
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
SPRUHE8E – October 2012 – Revised November 2019
www.ti.com
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