Appendix
C
C-1
Number Systems
This appendix describes the four numbering systems the processor uses:
decimal
octal
binary
hexadecimal
These numbering systems differ by their number sets and place values.
Timers, counters and math operations word values use the decimal
numbering system. This is a numbering system made up of ten digits: the
numbers 0 through 9 (Table C.A). All decimal numbers are composed of
these digits. The value of a decimal number depends on the digits used
and the place value of each digit.
Table C.A
Numbering System Conversion Chart
Hexadecimal
Binary
Decimal
Octal
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
000
001
002
003
004
005
006
007
010
011
012
013
014
015
016
017
Each place value in a decimal number represents a power of ten starting
with ten raised to the zero power (10
0
=1) (Figure C.1). You can compute
the decimal value of a number by multiplying each digit by its
corresponding place value and adding these numbers together.
Objectives
Decimal Numbering System
