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List of Figures
1-1
Multiple ePWM Modules
...................................................................................................
15
1-2
Submodules and Signal Connections for an ePWM Module
.........................................................
16
1-3
ePWM Submodules and Critical Internal Signal Interconnects
......................................................
17
2-1
Time-Base Submodule Block Diagram
..................................................................................
23
2-2
Time-Base Submodule Signals and Registers
.........................................................................
24
2-3
Time-Base Frequency and Period
.......................................................................................
26
2-4
Time-Base Counter Synchronization Scheme 1
.......................................................................
27
2-5
Time-Base Counter Synchronization Scheme 2
.......................................................................
28
2-6
Time-Base Counter Synchronization Scheme 3
.......................................................................
29
2-7
Time-Base Up-Count Mode Waveforms
................................................................................
30
2-8
Time-Base Down-Count Mode Waveforms
.............................................................................
31
2-9
Time-Base Up-Down-Count Waveforms, TBCTL[PHSDIR = 0] Count Down On Synchronization Event
......
31
2-10
Time-Base Up-Down Count Waveforms, TBCTL[PHSDIR = 1] Count Up On Synchronization Event
.........
32
2-11
Counter-Compare Submodule
............................................................................................
32
2-12
Detailed View of the Counter-Compare Submodule
...................................................................
33
2-13
Counter-Compare Event Waveforms in Up-Count Mode
.............................................................
35
2-14
Counter-Compare Events in Down-Count Mode
.......................................................................
35
2-15
Counter-Compare Events In Up-Down-Count Mode, TBCTL[PHSDIR = 0] Count Down On
Synchronization Event
....................................................................................................
36
2-16
Counter-Compare Events In Up-Down-Count Mode, TBCTL[PHSDIR = 1] Count Up On Synchronization
Event
........................................................................................................................
36
2-17
Action-Qualifier Submodule
...............................................................................................
37
2-18
Action-Qualifier Submodule Inputs and Outputs
.......................................................................
38
2-19
Possible Action-Qualifier Actions for EPWMxA and EPWMxB Outputs
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39
2-20
Up-Down-Count Mode Symmetrical Waveform
........................................................................
42
2-21
Up, Single Edge Asymmetric Waveform, With Independent Modulation on EPWMxA and
EPWMxB—Active High
....................................................................................................
43
2-22
Up, Single Edge Asymmetric Waveform With Independent Modulation on EPWMxA and
EPWMxB—Active Low
....................................................................................................
44
2-23
Up-Count, Pulse Placement Asymmetric Waveform With Independent Modulation on EPWMxA
..............
45
2-24
Up-Down-Count, Dual Edge Symmetric Waveform, With Independent Modulation on EPWMxA and
EPWMxB — Active Low
...................................................................................................
47
2-25
Up-Down-Count, Dual Edge Symmetric Waveform, With Independent Modulation on EPWMxA and
EPWMxB — Complementary
.............................................................................................
48
2-26
Up-Down-Count, Dual Edge Asymmetric Waveform, With Independent Modulation on EPWMxA—Active
Low
...........................................................................................................................
49
2-27
Dead_Band Submodule
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50
2-28
Configuration Options for the Dead-Band Submodule
................................................................
51
2-29
Dead-Band Waveforms for Typical Cases (0% < Duty < 100%)
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53
2-30
PWM-Chopper Submodule
...............................................................................................
55
2-31
PWM-Chopper Submodule Operational Details
........................................................................
56
2-32
Simple PWM-Chopper Submodule Waveforms Showing Chopping Action Only
..................................
56
2-33
PWM-Chopper Submodule Waveforms Showing the First Pulse and Subsequent Sustaining Pulses
.........
57
2-34
PWM-Chopper Submodule Waveforms Showing the Pulse Width (Duty Cycle) Control of Sustaining
Pulses
........................................................................................................................
58
2-35
Trip-Zone Submodule
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59
2-36
Trip-Zone Submodule Mode Control Logic
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62
2-37
Trip-Zone Submodule Interrupt Logic
....................................................................................
63
2-38
Event-Trigger Submodule
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63
2-39
Event-Trigger Submodule Inter-Connectivity of ADC Start of Conversion and Interrupt Signals
................
64
2-40
Event-Trigger Submodule Showing Event Inputs and Prescaled Outputs
..........................................
65
2-41
Event-Trigger Interrupt Generator
........................................................................................
66
2-42
Event-Trigger SOCA Pulse Generator
..................................................................................
67
SPRU791D – November 2004 – Revised October 2007
List of Figures
5
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Summary of Contents for 28xxx
Page 2: ...2 SPRU791D November 2004 Revised October 2007 Submit Documentation Feedback...
Page 8: ...List of Tables 8 SPRU791D November 2004 Revised October 2007 Submit Documentation Feedback...
Page 12: ...Read This First 12 SPRU791D November 2004 Revised October 2007 Submit Documentation Feedback...
Page 68: ...ePWM Submodules 68 SPRU791D November 2004 Revised October 2007 Submit Documentation Feedback...
Page 116: ...Registers 116 SPRU791D November 2004 Revised October 2007 Submit Documentation Feedback...