Motorola MVME2400 Series Servisní příručka stáhnout pdf (Strana 4)

This manual is intended for anyone who wants to design OEM systems, supply additional

capability to an existing compatible system, or work in a lab environment for experimental

purposes. A basic knowledge of computers and digital logic is assumed.

Document Terminology

Throughout this manual, a convention is used which precedes data and address parameters

by a character identifying the numeric format as follows:

For example, “12” is the decimal number twelve, and “$12” (hexadecimal) is the equivalent

of decimal number eighteen. Unless otherwise specified, all address references are in

hexadecimal.

An asterisk (*) following the signal name for signals which are level-significant denotes

that the signal is true or valid when the signal is low.

An asterisk (*) following the signal name for signals which are edge-significant denotes

that the actions initiated by that signal occur on high-to-low transition.

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:

$ Dollar

Specifies a hexadecimal character

0x Zero-x

% Percent Specifies a binary number

& Ampersand Specifies a decimal number

Byte 8 bits, numbered 0 through 7, with bit 0 being the least significant.

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

Word 32 bits, numbered 0 through 31, with bit 0 being the least significant.

Double word 64 bits, numbered 0 through 63, with bit 0 being the least significant.

1 2 3 4 5 6 7 8 9 ... 177 178

Žádné komentáře

Motorola MVME2400 Series Servisní příručka Strana 4