E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 111
E62655RUSB
Manufacturer Part Number
E62655RUSB
Description
EMULATOR BASE H8S/2655R W/USB
Manufacturer
Renesas Electronics America
Type
Microcontrollerr
Datasheet
1.E62655RUSB.pdf
(1093 pages)
Specifications of E62655RUSB
Contents
E6000 Emulator Unit and 4 Logic Probes
For Use With/related Products
H8S/2655R
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 111 of 1093
- Download datasheet (6Mb)
4.1
4.1.1
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 order of priority. Trap instruction exceptions
are accepted at all times, in the program execution state. See appendix D.1, Port States in Each
Mode.
Exception handling sources, the stack structure, and the operation of the CPU vary depending on
the interrupt control mode set by the INTM0 and INTM1 bits of SYSCR.
Table 4.1
Notes: 1. Traces are enabled only in interrupt control modes 2 and 3. Trace exception handling is
Priority
High
Low
2. Interrupt detection is not performed on completion of ANDC, ORC, XORC, or LDC
3. Trap instruction exception handling requests are accepted at all times in program
Exception Handling Types and Priority
Overview
Exception Type
Reset
Trace *
Interrupt
Trap instruction (TRAPA) *
not executed after execution of an RTE instruction.
instruction execution, or on completion of reset exception handling.
execution state.
Exception Types and Priority
1
Section 4 Exception Handling
3
Start of Exception Handling
Starts immediately after a low-to-high transition at the
RES pin, or when the watchdog timer overflows.
Starts when execution of the current instruction or
exception handling ends, if the trace (T) bit is set to 1
Starts when execution of the current instruction or
exception handling ends, if an interrupt request has been
issued *
Started by execution of a trap instruction (TRAPA)
2
Rev. 5.00 Sep 14, 2006 page 81 of 1060
Section 4 Exception Handling
REJ09B0331-0500
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