Intel Pentium III Processor/840, Manual, Page: 10 / 151

1-2 Intel
®
Pentium
®
III Processor/840 Development Kit Manual
About this Manual
1.2 Text Conventions
The following notations may be used throughout this manual.
# The pound symbol (#) appended to a signal name indicates that the signal
is active low.
Variables Variables are shown in italics. Variables must be replaced with correct
values.
Instructions Instruction mnemonics are shown in uppercase. When you are
programming, instructions are not case-sensitive. You may use either
uppercase or lowercase.
Numbers Hexadecimal numbers are represented by a string of hexadecimal digits
followed by the character H. A zero prefix is added to numbers that begin
with A through F. (For example, FF is shown as 0FFH.) Decimal and
binary numbers are represented by their customary notations. (That is, 255
is a decimal number and 1111 1111 is a binary number. In some cases, the
letter B is added for clarity.)
Units of Measure The following abbreviations are used to represent units of measure:
A amps, amperes
Gbyte gigabytes
Kbyte kilobytes
K
Ω
kilo-ohms
mA milliamps, milliamperes
Mbyte megabytes
MHz megahertz
ms milliseconds
mW milliwatts
ns nanoseconds
pF picofarads
W watts
V volts
µ
A microamps, microamperes
µ
F microfarads
µ
s microseconds
µ
W microwatts
Signal Names Signal names are shown in uppercase. When several signals share a
common name, an individual signal is represented by the signal name
followed by a number, while the group is represented by the signal name
followed by a variable (n). For example, the lower chip-select signals are
named CS0#, CS1#, CS2#, and so on; they are collectively called CSn#. A
pound symbol (#) appended to a signal name identifies an active-low
signal. Port pins are represented by the port abbreviation, a period, and the
pin number (e.g., P1.0).