MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 836
MPC555CME
Manufacturer Part Number
MPC555CME
Description
KIT EVALUATION FOR MPC555
Manufacturer
Freescale Semiconductor
Type
Microcontrollerr
Datasheet
1.MPC555CME.pdf
(966 pages)
Specifications of MPC555CME
Contents
Module Board, Installation Guide, Power Supply, Cable, Software and more
Processor To Be Evaluated
MPC555
Data Bus Width
32 bit
Interface Type
RS-232
For Use With/related Products
MPC555
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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D.10 Multichannel Pulse-Width Modulation (MCPWM)
MPC555 / MPC556
USER’S MANUAL
MCPWM generates pulse-width modulated outputs with full 0% to 100% duty cycle
range independent of other TPU activity. This capability requires two TPU channels
plus an external gate for one PWM channel. (A simple one-channel PWM capability is
supported by the QOM function.)
Multiple PWMs generated by MCPWM have two types of high time alignment: edge
aligned and center aligned. Edge-aligned mode uses n + 1 TPU channels for n PWMs;
center-aligned mode uses 2n + 1 channels. Center-aligned mode allows a user-de-
fined “dead time” to be specified so that two PWMs can be used to drive an H-bridge
without destructive current spikes. This feature is important for motor control applica-
tions. See Motorola TPU Progamming Note
(MCPWM),
Figure D-13
tion in each mode.
(TPUPN05/D).
through
Figure D-18
TPU ROM FUNCTIONS
Rev. 15 October 2000
show the host interface areas for the MCPWM func-
Multichannel PWM TPU Function
MOTOROLA
D-22
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