Notation
Classification
Notation
Description
n Numeric value
xxH
xxb
Represents a hexadecimal number
Represents a binary number
n Unit
Word, W
byte, B
nibble, N
mega-, M
kilo-, K
1 word = 16 bits
1 byte = 2 nibbles = 8 bits
1 nibble = 4 bits
6
10
2
10
= 1024
3
kilo-, k
10 = 1000
-3
milli-, m
micro-, m
nano-, n
second, s
10
-6
10
-9
10
second
n Terminology
“H” level
The signal level of the high side of the
voltage;
indicates the voltage level of V and V
IH
OH
described in the electrical characteristics.
The signal level of the low side of the
“L” level
voltage; indicates voltage level of V and
IL
V
OL
described in the electrical characteristics.
Opcode trap
Operation code trap. Occurs when an empty
area that has not been assigned an
instruction is fetched, or when an instruction
code combination that does not contain an
instruction is addressed.
n Register description
Register name Invalid bit
Fixed bit
3
Bit name
1
Bit number
0
7
6
5
4
2
"0"
ADSNM02ADSNM01ADSNM00
—
SCNC0 SNEX0 ADRUN0
ADCON0L
Invalid bit
Fixed bit
:
:
Indicates that the bit does not exist. Writing into this bit is invalid.
When writing, always write the specified value. If read, the specified
value will be read. Values of fixed bits are specified as “0” or “1”.
OKI [ OKI ELECTRONIC COMPONETS ]
