R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 142

• Manufacturer Part Number: R4F24278NVFQU
• Description: MCU 512K/48K 2.7-5.5V 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24278NVFQU

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, Smart Card, SPI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 98
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Section 5 Exception Handling
5.7
Illegal instruction exception handling starts when the CPU executing an illegal instruction code is
detected. Illegal instruction exception handling can be executed at all times in the program
execution state.
The illegal instruction exception handling is as follows:
1. The values in the PC, CCR, and EXR are saved in the stack.
2. The interrupt mask bit is updated and the T bit is cleared to 0.
3. An exception handling vector table address corresponding to the exception is generated, the
Table 5.5 shows the status of CCR and EXR after execution of illegal instruction exception
handling.
Table 5.5
Legend:
1:
0:
⎯: Retains value prior to execution
Illegal instruction codes will not be searched for in the fields that do not affect instruction
definitions, such as the EA extension or register fields. Instruction codes for an instruction formed
with several words are detected independently, and combined instruction codes are not detected.
Undefined instruction codes must not be executed. The general register contents after execution of
an undefined instruction code or illegal instruction exception handling cannot be guaranteed. The
stack pointer during illegal instruction exception handling and the PC value that will be saved are
also not guaranteed.
Page 112 of 1448
Interrupt Control Mode
0
2
start address of the exception service routine is loaded from the vector table to the PC, and
program execution starts from that address.
Set to 1
Cleared to 0
Illegal Instruction Exception Handling
Status of CCR and EXR after Illegal Instruction Exception Handling
I
1
1
CCR
UI
⎯
⎯
T
⎯
0
H8S/2427, H8S/2427R, H8S/2425 Group
REJ09B0565-0100 Rev. 1.00
EXR
I2 to I0
⎯
⎯
Jul 22, 2010