MC68HC912BD32CFU10 FREESCALE [Freescale Semiconductor, Inc], MC68HC912BD32CFU10 Datasheet - Page 285
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MC68HC912BD32CFU10
Manufacturer Part Number
MC68HC912BD32CFU10
Description
Advance Information
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MC68HC912BD32CFU10.pdf
(292 pages)
- Current page: 285 of 292
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index registers (IX and IY) — Two 16-bit registers in the CPU. In the indexed addressing
input/output (I/O) — Input/output interfaces between a computer system and the external world.
instructions — Operations that a CPU can perform. Instructions are expressed by programmers
interrupt — A temporary break in the sequential execution of a program to respond to signals
interrupt request — A signal from a peripheral to the CPU intended to cause the CPU to
I/O — See “input/output (I/0).”
jitter — Short-term signal instability.
latch — A circuit that retains the voltage level (logic 1 or logic 0) written to it for as long as power
latency — The time lag between instruction completion and data movement.
least significant bit (LSB) — The rightmost digit of a binary number.
logic 1 — A voltage level approximately equal to the input power voltage (V
logic 0 — A voltage level approximately equal to the ground voltage (V
low byte — The least significant eight bits of a word.
M68HC12 — A Motorola family of 16-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
MCU — Microcontroller unit. See “microcontroller.”
modes, the CPU uses the contents of IX or IY to determine the effective address of the
operand. IX and IY can also serve as a temporary data storage locations.
A CPU reads an input to sense the level of an external signal and writes to an output to
change the level on an external signal.
as assembly language mnemonics. A CPU interprets an opcode and its associated
operand(s) and instruction.
from peripheral devices by executing a subroutine.
execute a subroutine.
is applied to the circuit.
in integrated circuit fabrication to transfer an image onto silicon.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
Glossary
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MC68HC912BD32 Rev 1.0
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Glossary
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