M30803FGFP#U5 Renesas Electronics America, M30803FGFP#U5 Datasheet - Page 70
M30803FGFP#U5
Manufacturer Part Number
M30803FGFP#U5
Description
MCU 3/5V 256K PB-FREE 100-QFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/80r
Datasheet
1.M30803FGGPU3.pdf
(360 pages)
Specifications of M30803FGFP#U5
Core Processor
M16C/80
Core Size
16-Bit
Speed
20MHz
Connectivity
SIO, UART/USART
Peripherals
DMA, PWM, WDT
Number Of I /o
85
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
20K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 10x10b, D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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9.2 Software Interrupts
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Software interrupts are generated by some instruction that generates an interrupt request when ex-
ecuted. Software interrupts are nonmaskable interrupts.
B
0
(1) Undefined-instruction interrupt
(2) Overflow interrupt
(3) BRK interrupt
(4) BRK2 interrupt
(5) INT instruction interrupt
0
0
1
This interrupt occurs when the UND instruction is executed.
This interrupt occurs if the INTO instruction is executed when the O flag is 1.
The following lists the instructions that cause the O flag to change:
ABS, ADC, ADCF, ADD, ADDX, CMP, CMPX, DIV, DIVU, DIVX, NEG, RMPA, SBB, SCMPU, SHA,
SUB, SUBX
This interrupt occurs when the BRK instruction is executed.
This interrupt occurs when the BRK2 instruction is executed. This interrupt is used exclusively for
debugger purposes. You normally do not need to use this interrupt.
This interrupt occurs when the INT instruction is executed after specifying a software interrupt number
from 0 to 63. Note that software interrupt numbers 0 to 43 are assigned to peripheral I/O interrupts.
This means that by executing the INT instruction, you can execute the same interrupt routine as used
in peripheral I/O interrupts.
The stack pointer used in INT instruction interrupt varies depending on the software interrupt number.
For software interrupt numbers 0 to 31, the U flag is saved when an interrupt occurs and the U flag is
cleared to 0 to choose the interrupt stack pointer (ISP) before executing the interrupt sequence. The
previous U flag before the interrupt occurred is restored when control returns from the interrupt rou-
tine. For software interrupt numbers 32 to 63, such stack pointer switchover does not occur.
However, in peripheral I/O interrupts, the U flag is saved when an interrupt occurs and the U flag is
cleared to 0 to choose ISP.
Therefore movement of U flag is different by peripheral I/O interrupt or INT instruction in software
interrupt number 32 to 43.
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Page 57
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9. Interrupt Outline
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