Vector Tables; Fixed Vector Tables - Renesas R8C/Tiny Series Software Manual

Chapter 1 Overview

1.10 Vector Tables

Interrupt vector tables are the only vector tables. There are two types of interrupt vector tables: fixed and
variable.

1.10.1 Fixed Vector Tables

A fixed vector table is an address-fixed vector table. Part of the interrupt vector table is allocated to
addresses 0FFDC
Interrupt vector tables are composed of four bytes per table. Each vector table must contain the inter-
rupt handler routine's entry address.
0FFDC
16
0FFFF
16
Figure 1.10.1 Fixed Vector Table
Rev.2.00 Oct 17, 2005
REJ09B0001-0200
through 0FFFF . Figure 1.10.1 shows a fixed vector table.
16 16
Interrupt
vector table
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1.10 Vector Tables
FFFDC
16
Undefined instruction
FFFE0
16
Overflow
FFFE4
16
BRK instruction
FFFE8
16
Address match
FFFEC
16
Single step
FFFF0
Oscillation stop detection/
16
watchdog timer
FFFF4
16
(Reserved)
FFFF8
(Reserved)
16
FFFFC Reset
16