MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 832

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

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

D.8 Multiphase Motor Commutation (COMM)
MPC555 / MPC556
USER’S MANUAL
The COMM function generates the phase commutation signals for a variety of brush-
less motors, including three-phase brushless direct current. It derives the commutation
state directly from the position decoded in FQD, thus eliminating the need for hall ef-
fect sensors.
The state sequence is implemented as a user-configurable state machine, thus pro-
viding a flexible approach with other general applications. A CPU offset parameter is
provided to allow all the switching angles to be advanced or retarded on the fly by the
CPU. This feature is useful for torque maintenance at high speeds. See Motorola TPU
Progamming Note
(TPUPN09/D).
Figure D-10
tion.
and
Figure D-11
Multiphase Motor Commutation TPU Function (COMM),
show all of the host interface areas for the COMM func-
TPU ROM FUNCTIONS
Rev. 15 October 2000
MOTOROLA
D-18