SH7055S Datasheet, PDF (117/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Section 6 Exception Processing
6.1 Overview
6.1.1 Types of Exception Processing and Priority
Exception processing is started by four sources: resets, address errors, interrupts and instructions
and have the priority shown in table 6.1. When several exception processing sources occur at
once, they are processed according to the priority shown.
Table 6.1 Types of Exception Processing and Priority Order
Exception Source
Reset
Power-on reset
Manual reset
Address
error
CPU address error
DMAC address error
Instructions FPU exception
Interrupt NMI
User break
H-UDI
IRQ
On-chip peripheral modules:
Priority
High
• Direct memory access controller (DMAC)
• Advanced timer unit-II (ATU-II)
• Compare match timer 0 (CMT0)
• A/D converter channel 0 (A/D0)
• Compare match timer 1 (CMT1)
• A/D converter channel 1 (A/D1)
• A/D converter channel 2 (A/D2)
• Serial communication interface (SCI)
• Controller area network 0 (HCAN0)
• Watchdog timer (WDT)
• Controller area network 1 (HCAN 1)
Low
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