M306N5FCTFP Renesas Electronics America, M306N5FCTFP Datasheet - Page 93

• Manufacturer Part Number: M306N5FCTFP
• Description: IC M16C MCU FLASH 100QFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/6Nr

Specifications of M306N5FCTFP

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 87
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 26x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

M16C/6N Group (M16C/6N5)
Rev.2.40
REJ09B0011-0240
10.2 Software Interrupts
A software interrupt is generated when executing certain instructions. Software interrupts are non-
maskable interrupts.
10.2.1 Undefined Instruction Interrupt
10.2.2 Overflow Interrupt
10.2.3 BRK Interrupt
10.2.4 INT Instruction Interrupt
An undefined instruction interrupt is generated when executing the UND instruction.
An overflow interrupt is generated when executing the INTO instruction with the O flag in the FLG register
set to 1 (the operation resulted in an overflow). The following are instructions whose O flag changes by
arithmetic:
ABS, ADC, ADCF, ADD, CMP, DIV, DIVU, DIVX, NEG, RMPA, SBB, SHA, SUB
A BRK interrupt is generated when executing the BRK instruction.
An INT instruction interrupt is generated when executing the INT instruction. Software interrupt Nos. 0 to
63 can be specified for the INT instruction. Because software interrupt Nos. 1 to 31 are assigned to
peripheral function interrupts, the same interrupt routine as for peripheral function interrupts can be
executed by executing the INT instruction.
In software interrupt Nos. 0 to 31, the U flag is saved to the stack during instruction execution and is set
to 0 (ISP selected) before executing an interrupt sequence. The U flag is restored from the stack when
returning from the interrupt routine. In software interrupt Nos. 32 to 63, the U flag does not change state
during instruction execution, and the SP then selected is used.
Apr 14, 2006
page 71 of 372
10. Interrupts