Datasheet

Glossary
MC9S12DP256 — Revision 1.1
Glossary
MSI — See "multiple serial interface".
multiple serial interface — A module consisting of multiple
independent serial I/O sub-systems, e.g. two SCI and one SPI.
multiplexer — A device that can select one of a number of inputs and
pass the logic level of that input on to the output.
nibble — A set of four bits (half of a byte).
object code — The output from an assembler or compiler that is itself
executable machine code, or is suitable for processing to produce
executable machine code.
opcode — A binary code that instructs the CPU to perform an operation.
open-drain — An output that has no pullup transistor. An external pullup
device can be connected to the power supply to provide the logic
1 output voltage.
operand — Data on which an operation is performed. Usually a
statement consists of an operator and an operand. For example,
the operator may be an add instruction, and the operand may be
the quantity to be added.
oscillator — A circuit that produces a constant frequency square wave
that is used by the computer as a timing and sequencing
reference.
OTPROM — One-time programmable read-only memory. A nonvolatile
type of memory that cannot be reprogrammed.
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
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