M30620FCAFP#D3 Renesas Electronics America, M30620FCAFP#D3 Datasheet - Page 80
![IC M16C MCU FLASH 128K 100LQFP](/photos/28/61/286112/100-bqfp__prqp0100jb-a_sml.jpg)
M30620FCAFP#D3
Manufacturer Part Number
M30620FCAFP#D3
Description
IC M16C MCU FLASH 128K 100LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/60r
Specifications of M30620FCAFP#D3
Core Processor
M16C/60
Core Size
16-Bit
Speed
16MHz
Connectivity
SIO, UART/USART
Peripherals
DMA, PWM, WDT
Number Of I /o
85
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
10K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 10x10b, D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Interrupt
Returning from an Interrupt Routine
Interrupt Priority
Interrupt resolution circuit
Figure 1.11.8. Hardware interrupts priorities
Executing the REIT instruction at the end of an interrupt routine returns the contents of the flag register
(FLG) as it was immediately before the start of interrupt sequence and the contents of the program counter
(PC), both of which have been saved in the stack area. Then control returns to the program that was being
executed before the acceptance of the interrupt request, so that the suspended process resumes.
Return the other registers saved by software within the interrupt routine using the POPM or similar instruc-
tion before executing the REIT instruction.
If there are two or more interrupt requests occurring at a point in time within a single sampling (checking
whether interrupt requests are made), the interrupt assigned a higher priority is accepted.
Assign an arbitrary priority to maskable interrupts (peripheral I/O interrupts) using the interrupt priority level
select bit. If the same interrupt priority level is assigned, however, the interrupt assigned a higher hardware
priority is accepted.
Priorities of the special interrupts, such as Reset (dealt with as an interrupt assigned the highest priority),
watchdog timer interrupt, etc. are regulated by hardware.
Figure 1.11.8 shows the priorities of hardware interrupts.
Software interrupts are not affected by the interrupt priority. If an instruction is executed, control branches
invariably to the interrupt routine.
When two or more interrupts are generated simultaneously, this circuit selects the interrupt with the highest
priority level. Figure 1.11.9 shows the circuit that judges the interrupt priority level.
Reset > NMI > DBC > Watchdog timer > Peripheral I/O > Single step > Address match
_______
________
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M16C / 62A Group
Mitsubishi microcomputers
1-59
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