MC912DG128A Motorola, MC912DG128A Datasheet - Page 395

• Manufacturer Part Number: MC912DG128A
• Description: Microcontrollers
• Manufacturer: Motorola

MI-Bus — See "Motorola interconnect bus".
microcontroller — Microcontroller unit (MCU). A complete computer system, including a CPU,
modulo counter — A counter that can be programmed to count to any number from zero to its
most significant bit (MSB) — The leftmost digit of a binary number.
Motorola interconnect bus (MI-Bus) — The Motorola Interconnect Bus (MI Bus) is a serial
Motorola scalable CAN (msCAN) — The Motorola scalable controller area network is a serial
msCAN — See "Motorola scalable CAN".
MSI — See "multiple serial interface".
multiple serial interface — A module consisting of multiple independent serial I/O sub-systems,
multiplexer — A device that can select one of a number of inputs and pass the logic level of that
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,
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
operand — Data on which an operation is performed. Usually a statement consists of an
oscillator — A circuit that produces a constant frequency square wave that is used by the
MOTOROLA
memory, a clock oscillator, and input/output (I/O) on a single integrated circuit.
maximum possible modulus.
communications protocol which supports distributed real-time control efficiently and with
a high degree of noise immunity.
communications protocol that efficiently supports distributed real-time control with a very
high level of data integrity.
e.g. two SCI and one SPI.
input on to the output.
or is suitable for processing to produce executable machine code.
connected to the power supply to provide the logic 1 output voltage.
operator and an operand. For example, the operator may be an add instruction, and the
operand may be the quantity to be added.
computer as a timing and sequencing reference.
Glossary
MC68HC912DT128A Rev 1.0
Glossary
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