Renesas RX Series User Manual

R01UH0823EJ0100 Rev.1.00 Page 258 of 1823
Jul 31, 2019
RX23W Group 14. Exception Handling
14. Exception Handling
14.1 Exception Events
During execution of a program by the CPU, the occurrence of a certain event may cause execution of that program to be
suspended and execution of another program to be started. Such kinds of events are called exception events.
The RXv2 CPU supports eight types of exceptions. The types of exception events are shown in
Figure 14.1.
The occurrence of an exception causes the processor mode to shift to supervisor mode.
Figure 14.1 Types of Exception Events
Exception events
Undefined instruction exception
Privileged instruction exception
Access exceptions
Floating-point exception
Reset
Non-maskable interrupt
Interrupt
Unconditional trap

Renesas RX Series Specifications

General

Core	RXv1, RXv2, RXv3
Flash Memory	Up to 8 MB
RAM	Up to 1 MB
Operating Voltage	1.62V to 5.5V
Operating Temperature	-40°C to +85°C or +105°C
Package	BGA, LQFP
ADC Resolution	12-bit
DAC Resolution	12-bit
Communication Interfaces	SCI, SPI, I2C, USB, Ethernet, CAN
Architecture	32-bit
Security Features	Memory Protection Unit (MPU)