R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 82

• 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 52 of 589
Figure 6.6
VW1C1 bit is set to 0
(digital filter enabled)
and
VCAC1 bit is set to 1
(both edges)
VW1C1 bit is set to 0
(digital filter enabled),
VCAC1 bit is set to 0
(one edge),
and
VW1C7 bit is set to 0
(when VCC reaches Vdet1
VW1C1 bit is set to 0
(digital filter enabled),
VCAC1 bit is set to 0
(one edge),
and
VW1C7 bit is set to 1
(when VCC reaches Vdet1
VW1C1 bit is set to 1
(digital filter disabled)
and
VCAC1 bit is set to 1
(both edges)
VW1C1 bit is set to 1
(digital filter disabled),
VCAC1 bit is set to 0
(one edge),
and
VW1C7 bit is set to 0
(when VCC reaches Vdet1
VW1C1 bit is set to 1
(digital filter disabled),
VCAC1 bit is set to 0
(one edge),
and
VW1C7 bit is set to 1
(when VCC reaches Vdet1
or above)
or below)
or above)
or below)
VW1C1, VW1C2, VW1C3, VW1C7: Bits in VW1C register
VCAC1: Bit in VCAC register
The above applies when:
Note:
• VCA26 bit in VCA2 register = 1 (voltage detection 1 circuit enabled)
• VW1C0 bit in VW1C register = 1 (voltage monitor 1 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 1 Interrupt
1.8 V
VW1C3 bit
VW1C2 bit
Voltage monitor 1
interrupt request
VW1C2 bit
Voltage monitor 1
interrupt request
VW1C2 bit
Voltage monitor 1
interrupt request
VW1C2 bit
Voltage monitor 1
interrupt request
VW1C2 bit
Voltage monitor 1
interrupt request
VW1C2 bit
Voltage monitor 1
interrupt request
Vdet1
(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 when an interrupt request
is acknowledged.
Set to 0 by a program.
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.