MC68HC708MP16 Datasheet, PDF (389/398 Pages) Freescale Semiconductor, Inc – Microcontrollers

Glossary
logic 0 — A voltage level approximately equal to the ground voltage
(V_SS).
low byte — The least significant eight bits of a word.
low voltage inhibit module (LVI) — A module in the M68HC08 Family
that monitors power supply voltage.
LVI — See low voltage inhibit module (LVI).
M68HC08 — A Freescale family of 8-bit MCUs.
mark/space — The logic 1/logic 0 convention used in formatting data in
serial communication.
mask — 1. A logic circuit that forces a bit or group of bits to a desired
state. 2. A photomask used in integrated circuit fabrication to transfer
an image onto silicon.
mask option — An optional microcontroller feature that the customer
chooses to enable or disable.
mask option register (MOR) — An EPROM location containing bits that
enable or disable certain MCU features.
MCU — Microcontroller unit. See microcontroller.
memory location — Each M68HC08 memory location holds one byte
of data and has a unique address. To store information in a memory
location, the CPU places the address of the location on the address
bus, the data information on the data bus, and asserts the write
signal. To read information from a memory location, the CPU places
the address of the location on the address bus and asserts the read
signal. In response to the read signal, the selected memory location
places its data onto the data bus.
memory map — A pictorial representation of all memory locations in a
computer system.
microcontroller — Microcontroller unit (MCU). A complete computer
system, including a CPU, memory, a clock oscillator, and
input/output (I/O) on a single integrated circuit.
MC68HC708MP16 — Rev. 3.1
Freescale Semiconductor
Glossary
Technical Data
389