R5F2L387ANFP#U1 Renesas Electronics America, R5F2L387ANFP#U1 Datasheet - Page 198
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R5F2L387ANFP#U1
Manufacturer Part Number
R5F2L387ANFP#U1
Description
MCU 1KB FLASH 48K ROM 80-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/Lx/38Ar
Datasheet
1.R5F2L387ANFPU1.pdf
(864 pages)
Specifications of R5F2L387ANFP#U1
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
LCD, POR, PWM, Voltage Detect, WDT
Number Of I /o
68
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
6K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
80-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Quantity
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R8C/L35A Group, R8C/L36A Group, R8C/L38A Group, R8C/L3AA Group,
R8C/L35B Group, R8C/L36B Group, R8C/L38B Group, R8C/L3AB Group
REJ09B0441-0100 Rev.1.00
Page 161 of 802
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 the 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. When an instruction is executed, the MCU
executes the interrupt routine.
Returning from Interrupt Routine
Interrupt Priority
Hardware Interrupt Priority
Oct 30, 2009
Oscillation stop detection
Peripheral function
Watchdog timer
Address match
Address break
Single step
Reset
High
Low
11. Interrupts
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