R5F21102DFP#U0 Renesas Electronics America, R5F21102DFP#U0 Datasheet - Page 56
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
Figure 10.8 Hardware Interrupt Priority
Reset > WDT/Oscillation stop detection > Peripheral function > Single step > Address match
• Returning from an Interrupt Routine
• Interrupt Priority
The FLG register and PC in the state in which they were immediately before entering the interrupt
sequence are restored from the stack by executing the REIT instruction at the end of the interrupt
routine. Thereafter the CPU returns to the program which was being executed before accepting the
interrupt request.
Return the other registers saved by a program within the interrupt routine using the POPM or similar
instruction before executing the REIT instruction.
If two or more interrupt requests are generated while executing one instruction, the interrupt request
that has the highest priority is accepted.
For maskable interrupts (peripheral functions), any desired priority level can be selected using the
ILVL2 to ILVL0 bits. However, if two or more maskable interrupts have the same priority level, their
interrupt priority is resolved by hardware, with the highest priority interrupt accepted.
The watchdog timer and other special interrupts have their priority levels set in hardware. Figure 10.8
shows the Hardware Interrupt Priority.
Software interrupts are not affected by the interrupt priority. If an instruction is executed, control
branches invariably to the interrupt routine.
page 44 of 180
10.1 Interrupt Overview
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