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MC68HC08AZ32A Datasheet, PDF (308/312 Pages) Motorola, Inc – HCMOS Microcontroller Unit | |||
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Glossary
V âThe overflow bit in the condition code register of the CPU08. The CPU08 sets the V bit when a two's
complement overflow occurs. The signed branch instructions BGT, BGE, BLE, and BLT use the
overflow bit.
variable â A value that changes during the course of program execution.
VCO â See "voltage-controlled oscillator."
vector â A memory location that contains the address of the beginning of a subroutine written to service
an interrupt or reset.
voltage-controlled oscillator (VCO) â A circuit that produces an oscillating output signal of a frequency
that is controlled by a dc voltage applied to a control input.
waveform â A graphical representation in which the amplitude of a wave is plotted against time.
wired-OR â Connection of circuit outputs so that if any output is high, the connection point is high.
word â A set of two bytes (16 bits).
write â The transfer of a byte of data from the CPU to a memory location.
X â The lower byte of the index register (H:X) in the CPU08.
Z â The zero bit in the condition code register of the CPU08. The CPU08 sets the zero bit when an
arithmetic operation, logical operation, or data manipulation produces a result of $00.
MC68HC08AZ32A Data Sheet, Rev. 2
308
Freescale Semiconductor
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