R5F21236JFP Renesas Electronics America, R5F21236JFP Datasheet - Page 119
R5F21236JFP
Manufacturer Part Number
R5F21236JFP
Description
MCU 3/5V 32K+2K 48-LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/R8C/Tiny/23r
Datasheet
1.R5F21237DFPU0.pdf
(551 pages)
Specifications of R5F21236JFP
Core Processor
R8C
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K 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
-
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Manufacturer:
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Quantity:
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
12.1.2
12.1.2.1
12.1.2.2
12.1.2.3
12.1.2.4
A software interrupt is generated when an instruction is executed. The software interrupts are non-maskable
interrupts.
The undefined instruction interrupt is generated when the UND instruction is executed.
The overflow interrupt is generated when the O flag is set to 1 (arithmetic operation overflow) and the INTO
instruction is executed. Instructions to set the O flag are:
ABS, ADC, ADCF, ADD, CMP, DIV, DIVU, DIVX, NEG, RMPA, SBB, SHA, SUB
A BRK interrupt is generated when the BRK instruction is executed.
An INT instruction interrupt is generated when the INT instruction is executed. The INT instruction can select
software interrupt numbers 0 to 63. Software interrupt numbers 3 to 31 are assigned to the peripheral function
interrupt. Therefore, the MCU executes the same interrupt routine when the INT instruction is executed as
when a peripheral function interrupt is generated. In software interrupt numbers 0 to 31, the U flag is saved to
the stack during instruction execution and set the U flag to 0 (ISP selected) before executing an interrupt
sequence. The U flag is restored from the stack when returning from the interrupt routine. In software interrupt
numbers 32 to 63, the U flag does not change state during instruction execution, and the selected SP is used.
Software Interrupts
Undefined Instruction Interrupt
Overflow Interrupt
BRK Interrupt
INT Instruction Interrupt
Page 97 of 501
12. Interrupts
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