bold

is used for user input that you type just as it appears; it is also used for commands, options and arguments to commands, and names of programs, directories and files.

italic

is used for names of variables to which you assign values. Italic is also used for comments in screen displays and examples, and to introduce new terms.

courier

is used for system output (for example, screen displays, reports), examples, and system prompts.

<Enter>, <Return> or <CR>

<CR> represents the carriage return or Enter key.

CTRL

represents the Control key. Execute control characters by pressing the Ctrl key and the letter simultaneously, for example, Ctrl-d.

In this manual, assertion and negation are used to specify forcing a signal to a particular state. In particular, assertion and assert refer to a signal that is active or true; negation and negate indicate a signal that is inactive or false. These terms are used independently of the voltage level (high or low) that they represent.

Data and address sizes are defined as follows:

A byte is eight bits, numbered 0 through 7, with bit 0 being the least significant.

A word is 16 bits, numbered 0 through 15, with bit 0 being the least significant.

A longword is 32 bits, numbered 0 through 31, with bit 0 being the least significant.

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Motorola MVME1X7P manual CR represents the carriage return or Enter key, Ctrl