R5F21134DFP#U0 Renesas Electronics America, R5F21134DFP#U0 Datasheet - Page 38

• Manufacturer Part Number: R5F21134DFP#U0
• Description: IC R8C MCU FLASH 32LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/13r

Specifications of R5F21134DFP#U0

• Core Size: 16-Bit
• Program Memory Size: 16KB (16K x 8)
• Oscillator Type: Internal
• Core Processor: R8C
• Speed: 20MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 22
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• No. Of I/o's: 22
• Eeprom Memory Size: 4KB
• Ram Memory Size: 1024Byte
• Cpu Speed: 20MHz
• No. Of Timers: 16
• Digital Ic Case: RoHS Compliant
• Controller Family/series: R8C/13
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521134EPB00 - KIT EMULATOR PROBE FOR PC7501R0E521134CPE00 - EMULATOR COMPACT R8C/13
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

R8C/13 Group
Rev.1.20
REJ09B0111-0120
Figure 5.13 Operation Detection Interrupt Generation Block
Figure 5.14 Voltage Detection Interrupt Generation Circuit Operation Example
Voltage detection circuit
Internal
reference
voltage
Watchdog timer block
V
D40, D41, D42, D43, DF0, DF1, D46, D47: Bits in D4INT register
VC13: Bit in VCR1 register
VC27: Bit in VCR2 register
CC1
Output of digital filter
Voltage detection
interrupt signal
VCC
VC13 bit
D42 bit
NOTES:
1. D40 is “1”(voltage detection interrupt enabled).
2. Output of the digital filter shown in Figure 5.11
Jan 27, 2006
VC27
+
-
(Canceller width: 200 ns)
Noise
canceller
Watchdog timer
underflow signal
Voltage detection signal
is “H” when VC27 bit= 0
(disabled)
(
2)
page 27 of 205
Voltage
detection
signal
f
VC13
RING-S
CM10
Voltage detection interrupt generation circuit
sampling
This bit is set to “0”(not detected) by writing a “0” in a program.
D43
1/2
CM02: Bit in CM0 register
CM10: Bit in CM1 register
D47
1/2
Noise rejection
circuit
DF1 to DF0
1/2
D41
D42: Bit in D4INT register
VC13: Bit in VCR1 register
sampling
=00
=01
=10
=11
2
2
2
2
Digital
filter
No voltage detection interrupt
signals are generated when D42 bit
is “H”.
Set D42 bit to “0”
in a program (not
detected)
D42 bit is set to “0”(not detected)
by writing a “0” in a program.
When VC27 bit is set to “0”
(voltage detection circuit
disabled), D42 bit is set to “0” .
D40
D42
D46
sampling
5.4 Voltage Detection Circuit
Set D42 bit to “0”
in a program (not
detected)
Voltage
detection
interrupt signal
Oscillation stop
detection
interrupt signal
Watchdog
timer interrupt
signal
sampling
Hardware reset 2
Non-maskable
interrupt signal