M30853FJGP#U3 Renesas Electronics America, M30853FJGP#U3 Datasheet - Page 38

• Manufacturer Part Number: M30853FJGP#U3
• Description: IC M32C MCU FLASH 100LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M30853FJGP#U3

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 85
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 26x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• For Use With: R0K330879S001BE - KIT DEV RSK M32C/87R0K330879S000BE - KIT DEV RSK M32C/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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Chapter 1 Overview
Figure 1.10.2 Variable vector table
1 .
0
1.10.2 Variable Vector Table
9
0 .
B
The variable vector table is an address-variable vector table. Specifically, this vector table is a 256-byte
interrupt vector table that uses the value indicated by the interrupt table register (INTB) as the entry
address (IntBase). Figure 1.10.2 shows a variable vector table.
The variable vector table is comprised of four bytes per table. Each vector table must contain the
interrupt handler routine's entry address.
Each vector table has software interrupt numbers (0 to 63). The INT instruction uses these software
interrupt numbers.
The built-in peripheral I/O interrupts are assigned to variable vector table by MCU type expansion.
Interrupts from the internal peripheral functions are assigned from software interrupt numbers 0. The
number of interrupts is different depending on MCU type.
The stack pointer (SP) used for INT instruction interrupts varies with each software interrupt number.
For software interrupt numbers 0 through 31, the stack pointer specifying flag (U flag) is saved when an
interrupt request is accepted and the interrupt sequence is executed after clearing the U flag to 0 and
selecting the interrupt stack pointer (ISP). The U flag that was saved before accepting the interrupt
request is restored upon returning from the interrupt handler routine.
For software interrupt numbers 32 through 63, the stack pointer is not switched over.
For peripheral I/O interrupts, the interrupt stack pointer (ISP) is selected irrespective of software inter-
rupt numbers when accepting an interrupt request as for software interrupt numbers 0 through 31.
INTB
0
0
3
1
2
9
0
0 -
0
b23
6
1
0 .
0
0
5
3 .
1
p
a
IntBase
g
IntBase+4
IntBase+8
IntBase+252
e
20
f o
3
3
5
b0
0
1
63
Software interrupt
numbers
Vectors assign
peripheral I/O
interrupts
1.10 Vector Table