D13002F16V Renesas Electronics America, D13002F16V Datasheet - Page 82

• Manufacturer Part Number: D13002F16V
• Description: IC H8/3002 ROMLESS 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of D13002F16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SCI
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 38
• Program Memory Type: ROMless
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

4.1 Overview
4.1.1 Exception Handling Types and Priority
As table 4-1 indicates, exception handling may be caused by a reset, trap instruction, or interrupt.
Exception handling is prioritized as shown in table 4-1. If two or more exceptions occur
simultaneously, they are accepted and processed in priority order. Trap instruction exceptions are
accepted at all times in the program execution state.
Table 4-1 Exception Types and Priority
Priority Exception Type
High
Low
4.1.2 Exception Handling Operation
Exceptions originate from various sources. Trap instructions and interrupts are handled as follows.
1.
2.
3.
For a reset exception, steps 2 and 3 above are carried out.
The program counter (PC) and condition code register (CCR) are pushed onto the stack.
The CCR interrupt mask bit is set to 1.
A vector address corresponding to the exception source is generated, and program execution
starts from that address.
Reset
Interrupt
Trap instruction (TRAPA) Started by execution of a trap instruction (TRAPA)
Section 4 Exception Handling
Start of Exception Handling
Starts immediately after a low-to-high transition at the RES pin
Interrupt requests are handled when execution of the current
instruction or handling of the current exception is completed
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