s908ey8ad4cfjer Freescale Semiconductor, Inc, s908ey8ad4cfjer Datasheet - Page 263

• Manufacturer Part Number: s908ey8ad4cfjer
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

logic 0 — A voltage level approximately equal to the ground voltage (V
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
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
mask option — A 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
MCU — Microcontroller unit. See “microcontroller.”
memory location — Each M68HC08 memory location holds one byte of data and has a unique address.
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,
modulo counter — A counter that can be programmed to count to any number from zero to its maximum
monitor ROM — A section of ROM that can execute commands from a host computer for testing
MOR — See "mask option register (MOR)."
most significant bit (MSB) — The leftmost digit of a binary number.
multiplexer — A device that can select one of a number of inputs and pass the logic level of that input
N — The negative bit in the condition code register of the CPU08. The CPU sets the negative bit when
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
Freescale Semiconductor
voltage.
integrated circuit fabrication to transfer an image onto silicon.
features.
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.
a clock oscillator, and input/output (I/O) on a single integrated circuit.
possible modulus.
purposes.
on to the output.
an arithmetic operation, logical operation, or data manipulation produces a negative result.
suitable for processing to produce executable machine code.
MC68HC908EY16 • MC68HC908EY8 Data Sheet, Rev. 10
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