Under development
Preliminary specification
Specifications in this manual are tentative and subject to change.
R8C/L35A Group, R8C/L36A Group, R8C/L38A Group, R8C/L3AA Group,
R8C/L35B Group, R8C/L36B Group, R8C/L38B Group, R8C/L3AB Group
7. I/O Ports
7.4.22
Input Threshold Control Register 1 (VLT1)
b6
0
b5
0
b4
0
b3
0
b2
0
b1
0
Function
b1 b0
Address 01F6h
Bit
b7
Symbol VLT17
After Reset
0
Bit
b0
b1
b0
0
R/W
R/W
R/W
Symbol
Bit Name
VLT10 P4 input level select bit
VLT11
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
b3 b2
b2
b3
VLT12
VLT13
P5_0 and P5_3 input level select bit
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
b5 b4
R/W
R/W
b4
b5
VLT14
VLT15
P6 input level select bit
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
b7 b6
R/W
R/W
b6
b7
VLT16
VLT17
P7 input level select bit
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
R/W
R/W
The VLT1 register selects the voltage level of the input threshold values for ports P4 to P7. Bits VLT10 to
VLT17 are used to select the input threshold values among three voltage levels (0.35 VCC, 0.50 VCC, and 0.70
VCC).
REJ09B0441-0010 Rev.0.10
Page 102 of 809
Jul 30, 2008
RENESAS [ RENESAS TECHNOLOGY CORP ]
