R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 105

• Manufacturer Part Number: R5F21324CNSP#U0
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Cr

Specifications of R5F21324CNSP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 15
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 76 of 573
7.4.18
7.4.19
After Reset
After Reset
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 01F5h
Address 01F6h
The VLT0 register selects the voltage level of the input threshold values for ports P1, P3_3 to P3_5, and P3_7.
Bits VLT02 to VLT03 and bits VLT06 to VLT07 are used to select the input threshold values among three
voltage levels (0.35 VCC, 0.50 VCC, and 0.70 VCC).
The VLT1 register selects the voltage level of the input threshold values for ports P4_2 and P4_5 to P4_7. Bits
VLT10 to VLT15 are used to select the input threshold values among three voltage levels (0.35 VCC, 0.50
VCC, and 0.70 VCC).
Symbol
Symbol
Symbol
Symbol
VLT02
VLT03
VLT06
VLT07
VLT10
VLT11
Bit
Bit
Input Threshold Control Register 0 (VLT0)
Input Threshold Control Register 1 (VLT1)
—
—
—
—
—
—
—
—
—
—
VLT07
b7
b7
—
0
0
Reserved bits
P1 input level select bit
Reserved bits
P3_3 to P3_5, P3_7 input level select
bit
P4_2, P4_5 to P4_7 input level select
bit
Reserved bits
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
VLT06
b6
b6
—
0
0
Bit Name
Bit Name
b5
—
b5
—
0
0
b4
b4
—
—
0
0
Set to 0.
b3 b2
Set to 0.
b7 b6
b1 b0
Set to 0.
VLT03
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
b3
b3
—
0
0
VLT02
b2
b2
—
0
0
Function
Function
VLT11
b1
b1
—
0
0
VLT10
b0
b0
—
0
0
7. I/O Ports
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
—