MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 50

• 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

Nomenclature
MPC555 / MPC556
USER’S MANUAL
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Logic level one is the voltage that corresponds to Boolean true (1) state.
Logic level zero is the voltage that corresponds to Boolean false (0) state.
To set a bit or bits means to establish logic level one on the bit or bits.
To clear a bit or bits means to establish logic level zero on the bit or bits.
A signal that is asserted is in its active logic state. An active low signal changes
from logic level one to logic level zero when asserted, and an active high signal
changes from logic level zero to logic level one.
A signal that is negated is in its inactive logic state. An active low signal changes
from logic level zero to logic level one when negated, and an active high signal
changes from logic level one to logic level zero.
LSB means least significant bit or bits. MSB means most significant bit or bits. Ref-
erences to low and high bytes are spelled out.
Throughout this manual references to 3 V refer to the nominal supply
voltage of 3.3 volts.
In certain contexts, such as a signal encoding, this indicates a
don’t care. For example, if a field is binary encoded 0bx001, the
state of the first bit is a don’t care.
Rev. 15 October 2000
PREFACE
NOTE:
MOTOROLA
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