mc68hc912bd32 Freescale Semiconductor, Inc, mc68hc912bd32 Datasheet - Page 282

• Manufacturer Part Number: mc68hc912bd32
• Description: 16-bit Device Composed Of Standard On-chip Peripherals
• Manufacturer: Freescale Semiconductor, Inc

binary-coded decimal (BCD) — A notation that uses 4-bit binary numbers to represent the 10
bit — A binary digit. A bit has a value of either logic 0 or logic 1.
branch instruction — An instruction that causes the CPU to continue processing at a memory
break module — The break module allows software to halt program execution at a
breakpoint — A number written into the break address registers of the break module. When a
break interrupt — A software interrupt caused by the appearance on the internal address bus
bus — A set of wires that transfers logic signals.
bus clock — See "CPU clock".
byte — A set of eight bits.
CAN — See "Motorola scalable CAN."
CCR — See “condition code register.”
central processor unit (CPU) — The primary functioning unit of any computer system. The
CGM — See “clock generator module (CGM).”
clear — To change a bit from logic 1 to logic 0; the opposite of set.
clock — A square wave signal used to synchronize events in a computer.
clock generator module (CGM) — The CGM module generates a base clock signal from which
comparator — A device that compares the magnitude of two inputs. A digital comparator defines
Glossary
MC68HC912BD32 Rev 1.0
decimal digits and that retains the same positional structure of a decimal number. For
example,
234 (decimal) = 0010 0011 0100 (BCD)
location other than the next sequential address.
programmable point in order to enter a background routine.
number appears on the internal address bus that is the same as the number in the break
address registers, the CPU executes the software interrupt instruction (SWI).
of the same value that is written in the break address registers.
CPU controls the execution of instructions.
the system clocks are derived. The CGM may include a crystal oscillator circuit and/or
phase-locked loop (PLL) circuit.
the equality or relative differences between two binary numbers.
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Glossary