Texas Instruments DM6467 Digital Video Evaluation Module TMDXEVM6467T TMDXEVM6467T Datenbogen
Produktcode
TMDXEVM6467T
SPRS605C – JULY 2009 – REVISED JUNE 2012
7.26 Pulse Width Modulator (PWM)
The PWM provides a way to generate a pulse periodic waveform for motor control or can act as a digital-
to-analog converter with some external components.
to-analog converter with some external components.
7.26.1 PWM Device-Specific Information
The 2 DM6467T Pulse Width Modulator (PWM) peripherals support the following features:
•
32-bit period counter
•
32-bit first-phase duration counter
•
32-bit repeat count for one-shot operation. One-shot operation generates N+1 periods of waveform, N
being the repeat count register value.
being the repeat count register value.
•
Configurable to operate in either one-shot or continuous mode
•
Programmable buffered period and first-phase duration registers
•
One-shot operation triggerable by VPIF or GPIO with programmable edge transitions. (low-to-high or
high-to-low).
high-to-low).
•
One-shot operation generates N+1 periods of waveform, N being the repeat count register value
•
Configurable PWM output pin inactive state
•
Interrupt and EDMA synchronization events
•
Emulation support for stop or free-run operation
7.26.2 PWM Peripheral Register Description(s)
and
show the register memory maps for PWM0/1.
Table 7-136. PWM0 Register
HEX ADDRESS RANGE
ACRONYM
REGISTER NAME
0x01C2 2000
PID
PWM0 Peripheral Identification Register
0x01C2 2004
PCR
PWM0 Peripheral Control Register
0x01C2 2008
CFG
PWM0 Configuration Register
0x01C2 200C
START
PWM0 Start Register
0x01C2 2010
RPT
PWM0 Repeat Count Register
0x01C2 2014
PER
PWM0 Period Register
0x01C2 2018
PH1D
PWM0 First-Phase Duration Register
0x01C2 201C - 0x01C2 23FF
-
Reserved
Table 7-137. PWM1 Register Memory Map
HEX ADDRESS RANGE
ACRONYM
REGISTER NAME
0x01C2 2400
PID
PWM1 Peripheral Identification Register
0x01C2 2404
PCR
PWM1 Peripheral Control Register
0x01C2 2408
CFG
PWM1 Configuration Register
0x01C2 240C
START
PWM1 Start Register
0x01C2 2410
RPT
PWM1 Repeat Count Register
0x01C2 2414
PER
PWM1 Period Register
0x01C2 2418
PH1D
PWM1 First-Phase Duration Register
0x01C2 241C -0x01C2 27FF
-
Reserved
Copyright © 2009–2012, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications
337
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