R5F21102DFP#U0 Renesas Electronics America, R5F21102DFP#U0 Datasheet - Page 46
R5F21102DFP#U0
Manufacturer Part Number
R5F21102DFP#U0
Description
IC R8C MCU FLASH 8K 32LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/R8C/Tiny/10r
Datasheets
1.R5F211A2SPU0.pdf
(300 pages)
2.R5F21102FPU0.pdf
(30 pages)
3.R5F21102FPU0.pdf
(201 pages)
Specifications of R5F21102DFP#U0
Core Processor
R8C
Core Size
16-Bit
Speed
16MHz
Connectivity
SIO, UART/USART
Peripherals
LED, WDT
Number Of I /o
22
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
For Use With
R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521134EPB00 - KIT EMULATOR PROBE FOR PC7501R0E521134CPE00 - EMULATOR COMPACT R8C/13
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
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R8C/10 Group
Rev.1.20 Jan 27, 2006
REJ09B0019-0120
10.1.2 Software Interrupts
A software interrupt occurs when executing certain instructions. Software interrupts are non-
maskable interrupts.
• Undefined Instruction Interrupt
• Overflow Interrupt
• BRK Interrupt
• INT Instruction Interrupt
An undefined instruction interrupt occurs when executing the UND instruction.
An overflow interrupt occurs when executing the INTO instruction with the O flag set to “1” (the
operation resulted in an overflow). The following are instructions whose O flag changes by arith-
metic:
ABS, ADC, ADCF, ADD, CMP, DIV, DIVU, DIVX, NEG, RMPA, SBB, SHA, SUB
A BRK interrupt occurs when executing the BRK instruction.
An INT instruction interrupt occurs when executing the INT instruction. Software interrupt numbers 0
to 63 can be specified for the INT instruction. Because software interrupt numbers 4 to 31 are as-
signed to peripheral function interrupts, the same interrupt routine as for peripheral function inter-
rupts can be executed by executing the INT instruction.
In software interrupt numbers 0 to 31, the U flag is saved to the stack during instruction execution
and is cleared 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 SP then selected is used.
page 34 of 180
10.1 Interrupt Overview
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