Intel 8XC196MH, 8XC196MD, 8XC196MC manual Pwm

8XC196MC, MD, MH USER’S MANUAL

PWM	Pulse-width modulated (outputs). The 8XC196Mx
	devices have several options for producing PWM
	outputs: the generic pulse-width modulator modules,
	the waveform generator, and the EPA with or without
	the PTS. The 8XC196MD also has a frequency
	generator that produces PWM outputs.
quantizing error	An unavoidable A/D conversion error that results
	simply from the conversion of a continuous voltage to
	its integer digital representation. Quantizing error is
	always ± 0.5 LSB and is the only error present in an
	ideal A/D converter.
RALU	Register arithmetic-logic unit. A part of the CPU that
	consists of the ALU, the PSW, the master PC, the
	microcode engine, a loop counter, and six registers.
repeatability error	The difference between corresponding code
	transitions from different actual characteristics taken
	from the same converter on the same channel with the
	same temperature, voltage, and frequency conditions.
	The amount of repeatability error depends on the
	comparator’s ability to resolve very similar voltages
	and the extent to which random noise contributes to
	the error.
reserved memory	A memory location that is reserved for factory use or
	for future expansion. Do not use a reserved memory
	location except to initialize it with FFH.
resolution	The number of input voltage levels that an A/D
	converter can unambiguously distinguish between.
	The number of useful bits of information that the
	converter can return.
sample capacitor	A small (2–3 pF) capacitor used in the A/D converter
	circuitry to store the input voltage on the selected
	input channel.
sample delay	The time period between the time that A/D converter
	receives the “start conversion” signal and the time
	that the sample capacitor is connected to the selected
	channel.
sample delay uncertainty	The variation in the sample delay.

Glossary-8