R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 84

• 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 54 of 589
Figure 6.7
VW2C1 bit is set to 0
(digital filter enabled)
and
VCAC2 bit is set to 1
(both edges)
VW2C1 bit is set to 0
(digital filter enabled),
VCAC2 bit is set to 0
(one edge),
and
VW2C7 bit is set to 0
(when VCC reaches
Vdet2 or above)
VW2C1 bit is set to 0
(digital filter enabled),
VCAC2 bit is set to 0
(one edge),
and
VW2C7 bit is set to 1
(when VCC reaches
Vdet2 or below)
VW2C1 bit is set to 1
(digital filter disabled)
and
VCAC2 bit is set to 1
(both edges)
VW2C1 bit is set to 1
(digital filter disabled),
VCAC2 bit is set to 0
(one edge),
and
VW2C7 bit is set to 0
(when VCC reaches
Vdet2 or above)
VW2C1 bit is set to 1
(digital filter disabled),
VCAC2 bit is set to 0
(one edge),
and
VW2C7 bit is set to 1
(when VCC reaches
Vdet2 or below)
VCA13: Bit in VCA1 register
VW2C1, VW2C2, VW2C7: Bits in VW2C register
VCAC2: Bit in VCAC register
The above applies when:
Note:
• VCA27 bit in VCA2 register = 1 (voltage detection 2 circuit enabled)
• VW2C0 bit in VW2C register = 1 (voltage monitor 2 interrupt enabled)
1. If voltage monitor 0 reset is not used, set the power supply to VCC ≥ 1.8 V.
Operating Example of Voltage Monitor 2 Interrupt
VCA13 bit
VW2C2 bit
Voltage monitor 2
interrupt request
VW2C2 bit
Voltage monitor 2
interrupt request
VW2C2 bit
Voltage monitor 2
interrupt request
VW2C2 bit
Voltage monitor 2
interrupt request
VW2C2 bit
Voltage monitor 2
interrupt request
VW2C2 bit
Voltage monitor 2
interrupt request
1.8 V
Vdet2
(1)
VCC
Sampling clock of
digital filter × 2 cycles
Set to 0 when an interrupt request
is acknowledged.
Set to 0 when an interrupt request
is acknowledged.
Set to 0 by a program.
Set to 0 when an interrupt request
is acknowledged.
Set to 0 by a program.
Sampling clock of
digital filter × 2 cycles
Set to 0 by a program.
Set to 0 by a program.
6. Voltage Detection Circuit
Set to 0 when an interrupt request
is acknowledged.
Set to 0 when an interrupt request
is acknowledged.
Set to 0 when an interrupt request
is acknowledged.
Set to 0 by a program.
Set to 0 by a program.