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M16C/5L Group, M16C/56 Group
11.3.8
Input Threshold Select Register 1 (VLT1)
Input Threshold Select Register 1
b7 b6 b5 b4
b3
b2
b1
The input level of ports can be selected. The input level of peripheral functions is not affected.
11.3.9
Input Threshold Select Register 2 (VLT2)
Input Threshold Select Register 2
b7 b6 b5 b4
b3
b2
b1
The input level of ports can be selected. The input level of peripheral functions is not affected.
R01UH0127EJ0110 Rev.1.10
Sep 01, 2011
Symbol
b0
VLT1
Bit Symbol
Bit Name
—
No register bits. If necessary, set to 0. The read value is undefined.
(b3-b0)
VLT14
P6 input level select bit
VLT15
VLT16
P7 input level select bit
VLT17
Symbol
b0
VLT2
Bit Symbol
Bit Name
VLT20
P8 input level select bit
VLT21
VLT22
P9_0 to P9_3, P9_5 to P9_7
input level select bit
VLT23
VLT24
P10 input level select bit
VLT25
—
No register bits. If necessary, set to 0. The read value is undefined.
(b7-b6)
Address
036Dh
Function
b5 b4
0 0 : 0.50 x VCC
0 1 : Do not set
1 0 : 0.70 x VCC
1 1 : Do not set
b7 b6
0 0 : 0.50 x VCC
0 1 : Do not set
1 0 : 0.70 x VCC
1 1 : Do not set
Address
036Eh
Function
b1 b0
×
0 0: 0.50
VCC
0 1: Do not set.
×
1 0: 0.70
VCC
1 1: Do not set.
b3 b2
×
0 0: 0.50
VCC
0 1: Do not set.
×
1 0: 0.70
VCC
1 1: Do not set.
b5 b4
×
0 0: 0.50
VCC
0 1: Do not set.
×
1 0: 0.70
VCC
1 1: Do not set.
11. Programmable I/O Ports
Reset Value
0000XXXXb
RW
—
RW
RW
RW
RW
Reset Value
XX00 0000b
RW
RW
RW
RW
RW
RW
RW
—
Page 158 of 803
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