R5F21274SNFP#U0 Renesas Electronics America, R5F21274SNFP#U0 Datasheet - Page 130
R5F21274SNFP#U0
Manufacturer Part Number
R5F21274SNFP#U0
Description
IC R8C/27 MCU FLASH 32LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/27r
Datasheet
1.R5F21272SDFPU0.pdf
(487 pages)
Specifications of R5F21274SNFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
LED, POR, Voltage Detect, WDT
Number Of I /o
25
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
32-LQFP
For Use With
R0K521276S000BE - KIT DEV RSK-R8C/26-29R0E521000EPB00 - PROBE EMULATOR FOR PC7501
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21274SNFP#U0R5F21274SNFP#V2
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
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. Software interrupts are non-maskable.
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 that set the O flag are: ABS, ADC, ADCF, ADD, CMP, DIV, DIVU, DIVX,
NEG, RMPA, SBB, SHA, and 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. For software interrupt numbers 0 to 31, the U flag is saved to
the stack during instruction execution and the U flag is set to 0 (ISP selected) before the interrupt sequence is
executed. The U flag is restored from the stack when returning from the interrupt routine. For software interrupt
numbers 32 to 63, the U flag does not change state during instruction execution, and the selected SP is used.
Sep 26, 2008
Software Interrupts
Undefined Instruction Interrupt
Overflow Interrupt
BRK Interrupt
INT Instruction Interrupt
Page 111 of 453
12. Interrupts
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