R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 72

• 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 42 of 589
6.2.2
Notes:
6.2.3
Note:
After Reset
1. When the VCAC1 bit is set to 0 (one edge), the VW1C7 bit in the VW1C register is enabled. Set the VW1C7 bit
2. When the VCAC2 bit is set to 0 (one edge), the VW2C7 bit in the VW2C register is enabled. Set the VW2C7 bit
After Reset
1. When the VCA27 bit in the VCA2 register is set to 1 (voltage detection 2 circuit enabled), the VCA13 bit is
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 0031h
Address 0033h
after setting the VCAC1 bit to 0.
after setting the VCAC2 bit to 0.
enabled.
When the VCA27 bit in the VCA2 register is set to 0 (voltage detection 2 circuit disabled), the VCA13 bit is set to
1 (VCC
Symbol
Symbol
Symbol
VCAC1 Voltage monitor 1 circuit edge select bit
VCAC2 Voltage monitor 2 circuit edge select bit
Symbol
VCA13 Voltage detection 2 signal monitor flag
Bit
Bit
Voltage Monitor Circuit Edge Select Register (VCAC)
Voltage Detect Register 1 (VCA1)
—
—
—
—
—
—
—
—
—
—
—
—
—
≥
Vdet2).
b7
b7
—
—
0
0
Reserved bits
Reserved bits
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
b6
b6
—
—
0
0
Bit Name
Bit Name
b5
—
b5
—
0
0
b4
b4
—
—
0
0
(1)
VCA13
(1)
(2)
b3
b3
—
0
1
Set to 0.
0: VCC
1: VCC
Set to 0.
0: One edge
1: Both edges
0: One edge
1: Both edges
or voltage detection 2 circuit disabled
VCAC2
<
≥
b2
b2
—
Vdet2
Vdet2
0
0
VCAC1
Function
Function
b1
b1
—
0
0
6. Voltage Detection Circuit
b0
b0
—
—
0
0
R/W
R/W
R/W
R/W
R/W
R/W
—
—
R