DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 186

• Manufacturer Part Number: DF2238RTF6
• Description: MCU 2.2/3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2238RTF6

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 6MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2238RTF6; HD64F2238RTF6

Section 4 Exception Handling
Table 4.4
Interrupt Control Mode
0
2
Legend:
1:
0:
—:
4.5
Interrupts are controlled by the interrupt controller. The interrupt control has two interrupt control
modes and can assign interrupts other than NMI to eight priority/mask levels to enable
multiplexed interrupt control. For details, refer to section 5, Interrupt Controller.
Interrupt exception handling is conducted as follows:
1. The values in the program counter (PC), condition code register (CCR), and extended control
2. The interrupt mask bit is updated and the T bit is cleared to 0.
3. A vector address corresponding to the interrupt source is generated, the start address is loaded
4.6
Trap instruction exception handling starts when a TRAPA instruction is executed. Trap instruction
exception handling can be executed at all times in the program execution state.
Trap instruction exception handling is conducted as follows:
1. The values in the program counter (PC), condition code register (CCR), and extended control
2. The interrupt mask bit is updated and the T bit is cleared to 0.
3. A vector address corresponding to the interrupt source is generated, the start address is loaded
The TRAPA instruction fetches a start address from a vector table entry corresponding to a vector
number from 0 to 3, as specified in the instruction code.
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register (EXR) are saved to the stack.
from the vector table to the PC, and program execution begins from that address.
register (EXR) are saved to the stack.
from the vector table to the PC, and program execution starts from that address.
Set to 1
Cleared to 0
Retains value prior to execution
Trap Instruction
Interrupts
Status of CCR and EXR after Trace Exception Handling
CCR
I
Trace exception handling cannot be used.
1
UI
—
—
EXR
I2 to I0
0
T