Intel 8XC196MC, 8XC196MD, 8XC196MH Notational Conventions and Terminology, Assert and deassert

GUIDE TO THIS MANUAL

Appendix C — Registers — provides a compilation of all device special-function registers (SFRs) arranged alphabetically by register mnemonic. It also includes tables that list the win- dowed direct addresses for all SFRs in each possible window.

Glossary — defines terms with special meaning used throughout this manual.

Index — lists key topics with page number references.

1.2NOTATIONAL CONVENTIONS AND TERMINOLOGY

The following notations and terminology are used throughout this manual. The Glossary defines other terms with special meanings.

#	The pound symbol (#) has either of two meanings, depending on the
	context. When used with a signal name, the symbol means that the
	signal is active low. When used in an instruction, the symbol prefixes
	an immediate value in immediate addressing mode.
assert and deassert	The terms assert and deassert refer to the act of making a signal
	active (enabled) and inactive (disabled), respectively. The active
	polarity (low or high) is defined by the signal name. Active-low
	signals are designated by a pound symbol (#) suffix; active-high
	signals have no suffix. To assert RD# is to drive it low; to assert ALE
	is to drive it high; to deassert RD# is to drive it high; to deassert ALE
	is to drive it low.
clear and set	The terms clear and set refer to the value of a bit or the act of giving
	it a value. If a bit is clear, its value is “0”; clearing a bit gives it a “0”
	value. If a bit is set, its value is “1”; setting a bit gives it a “1” value.
instructions	Instruction mnemonics are shown in upper case to avoid confusion.
	In general, you may use either upper case or lower case when
	programming. Consult the manual for your assembler or compiler to
	determine its specific requirements.
italics	Italics identify variables and introduce new terminology. The context
	in which italics are used distinguishes between the two possible
	meanings.
	Variables in registers and signal names are commonly represented by
	x and y, where x represents the first variable and y represents the
	second variable. For example, in register Px_MODE.y, x represents
	the variable that identifies the specific port associated with the
	register, and y represents the register bit variable (7:0 or 15:0).
	Variables must be replaced with the correct values when configuring
	or programming registers or identifying signals.
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