R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 131

• Manufacturer Part Number: R5F21238DFP#U0
• Description: IC R8C/23 MCU FLASH 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/23r

Specifications of R5F21238DFP#U0

• Core Size: 16/32-Bit
• Program Memory Size: 64KB (64K x 8)
• Peripherals: POR, Voltage Detect, WDT
• Core Processor: R8C
• Speed: 20MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Number Of I /o: 41
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• No. Of I/o's: 41
• Ram Memory Size: 3KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Embedded Interface Type: CAN, I2C, UART
• Rohs Compliant: Yes
• Cpu Family: R8C
• Device Core Size: 16b
• Frequency (max): 20MHz
• Interface Type: I2C/UART
• Total Internal Ram Size: 3KB
• # I/os (max): 41
• Number Of Timers - General Purpose: 5
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• On-chip Adc: 12-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 48
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 12.11
12.1.6.10 Interrupt Priority Judgement Circuit
The interrupt priority judgement circuit selects the highest priority interrupt.
Figure 12.11 shows the Interrupt Priority Level Judgement Circuit.
Interrupt Priority Level Judgement Circuit
Priority level of each interrupt
NOTE:
1. The IICSEL bit in the PMR register switches functions.
CAN0 successful transmit
CAN0 successful receive
Oscillation stop detection
Voltage monitor 2
UART1 transmit
UART0 transmit
Watchdog timer
CAN0 wake-up
UART1 receive
UART0 receive
A/D conversion
Address match
SSU/I
Page 109 of 501
CAN0 error
Timer RD0
Timer RD1
Timer RB
Timer RA
Timer RE
Key Input
INT3
INT0
INT1
INT2
I flag
IPL
2
C bus
(1)
Level 0 (default value)
Highest
Lowest
Priority of peripheral function interrupts
(if priority levels are same)
Interrupt request level
judgment output signal
Interrupt request
acknowledged
12. Interrupts