3.
Register Notation
The symbols and terms used in register diagrams are described below.
x.x.x
XXX Register (Symbol)
b6
0
b5
0
Bit Name
b1 b0
Address XXXXh
Bit
b7
Symbol XXX7
After Reset
0
Bit
b0
b1
b4
0
b3
0
b2
0
b1
0
Function
b0
0
*1
Symbol
XXX0 XXX bit
XXX1
b2
b3
b4
b5
b6
b7
—
—
XXX4
XXX5
XXX6
XXX7
0 0: XXX
0 1: XXX
1 0: Do not set.
1 1: XXX
Nothing is assigned. If necessary, set to 0. When read, the content is undefined.
Reserved bit
Set to 0.
XXX bit
Function varies according to the operating mode.
R/W
R/W
R/W
XXX bit
0: XXX
1: XXX
—
R/W
R/W
W
R/W
R
*2
*3
*1
R/W: Read and write.
R: Read only.
W: Write only.
−:
Nothing is assigned.
*2
• Reserved bit
Reserved bit. Set to specified value.
*3
• Nothing is assigned.
Nothing is assigned to the bit. As the bit may be used for future functions, if necessary, set to 0.
• Do not set to a value.
Operation is not guaranteed when a value is set.
• Function varies according to the operating mode.
The function of the bit varies with the peripheral function mode. Refer to the register diagram for information
on the individual modes.
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