R5F213J6CNNP#U0 Renesas Electronics America, R5F213J6CNNP#U0 Datasheet - Page 184

• Manufacturer Part Number: R5F213J6CNNP#U0
• Description: MCU 1KB FLASH 32K ROM 36-QFN
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/3JCr

Specifications of R5F213J6CNNP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 31
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 36-WQFN Exposed Pad, 36-HWQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/3JC Group
REJ09B0602-0100 Rev.1.00
May 12, 2010
Figure 11.7
11.3.8
11.3.9
When the REIT instruction is executed at the end of an interrupt routine, the FLG register and PC, which have
been saved on the stack, are automatically restored. The program, that was running before the interrupt request
was acknowledged, starts running again.
Registers saved by a program in an interrupt routine should be saved using the POPM instruction or a similar
instruction before executing the REIT instruction.
If two or more interrupt requests are generated while a single instruction is being executed, the interrupt with
the higher priority is acknowledged.
Set bits ILVL2 to ILVL0 to select any priority level for maskable interrupts (peripheral function). However, if
two or more maskable interrupts have the same priority level, their interrupt priority is resolved by hardware,
with the higher priority interrupts acknowledged.
The priority of watchdog timer and other special interrupts is set by hardware.
Figure 11.7 shows the Hardware Interrupt Priority.
Software interrupts are not affected by the interrupt priority. If an instruction is executed, the MCU executes the
interrupt routine.
Returning from Interrupt Routine
Interrupt Priority
Hardware Interrupt Priority
Oscillation stop detection
Peripheral function
Voltage monitor 1
Voltage monitor 2
Watchdog timer
Address match
Address break
Single step
Reset
High
Low
Page 153 of 715
11. Interrupts