R5F21237JFP Renesas Electronics America, R5F21237JFP Datasheet - Page 118

• Manufacturer Part Number: R5F21237JFP
• Description: MCU 3/5V 48K+2K 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/23r

Specifications of R5F21237JFP

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K 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
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
12. Interrupts
12.1
Figure 12.1
12.1.1
Interrupt
NOTES:
Figure 12.1 shows the Interrupts.
Interrupt Overview
•
•
1. Peripheral function interrupts in the MCU are used to generate the peripheral interrupt.
2. Do not use this interrupt. This is for use with development tools only.
Maskable interrupt:
Non-maskable interrupt: The interrupt enable flag (I flag) does not enable or disable an interrupt. The
Types of Interrupts
Interrupts
Software
Hardware
(non-maskable interrupt)
Page 96 of 501
The interrupt enable flag (I flag) enables or disables these interrupt. The
interrupt priority order can be changed based on the interrupt priority level.
interrupt priority order based on interrupt priority level cannot be changed.
Special
(non-maskable interrupt)
Peripheral function
(maskable interrupt)
(1)
Undefined instruction (UND instruction)
Overflow (INTO instruction)
BRK instruction
INT instruction
Watchdog timer
Oscillation stop detection
Voltage monitor 2
Single step
Address break
Address match
(2)
(2)
12. Interrupts