R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 112

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#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: 27
• 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 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 82 of 589
7.4.21
After Reset
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 01F6h
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
VLT10
VLT11
Bit
Input Threshold Control Register 1 (VLT1)
—
—
—
—
—
—
b7
—
0
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.
b6
—
0
Bit Name
b5
—
0
b4
—
0
b1 b0
Set to 0.
0 0: 0.50 × VCC
0 1: 0.35 × VCC
1 0: 0.70 × VCC
1 1: Do not set.
b3
—
0
b2
—
0
Function
VLT11
b1
0
VLT10
b0
0
7. I/O Ports
R/W
R/W
R/W
R/W
—