# Hex (hexadecimal); Appendix 4.2 - Mitsubishi Electric Q01UCPU User Manual

Also See for Q01UCPU
User manual - 270 pages
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User manual - 720 pages

### Appendix 4.2

(1) Definition
Hexadecimal (HEX) is a numeral system that represents four binary bits as one digit.
With four binary bits, sixteen different numeric values, 0 to 15, can be represented.
Hexadecimal notation uses 16 symbols to represent numeric values 0 to 15 in one digit, the symbols 0 to 9 to
represent values zero to nine, and A
higher digit (to the left) is incremented.
The following table lists the numeric representations in BIN, HEX, and DEC (decimal).
DEC (Decimal)
0
1
2
3
9
10
11
12
13
14
15
16
17
47
(2) Numeric representation in HEX
Each register (such as the data register, link register) in the CPU module consists of 16 bits.
In the 16-bit configuration register, 0 to FFFF

to F
to represent values ten to fifteen. After a digit reaches F
H
H
0
1
2
3
9
A
B
C
D
E
F
10
11
2F
H
APPENDICES
, the next-
H
BIN (Binary)
0
1
10
11
1001
1010
1011
1100
1101
1110
1111
1
0000
1
0001
10
1111
A
Carry
489