Renesas RL78 Series Application Note

RL78 Family VDE Certified IEC60730/60335 Self Test Library
R01AN0749EG0201 Rev.2.01 Page 28 of 50
Mar 04, 2014
3.2 Flash ROM Verification
The ROM is tested by calculating a CRC value over the complete range of the Flash memory contents and comparing
with a reference CRC value that must be added to a specific location in the ROM not included in the CRC calculation.
The IAR embedded workbench tool chain can be used to calculate and add a CRC value and placed at a location at a
location specified by the user. This can be done via an external utility or using the IAR tool to generate the reference
CRC value and place the reference value in memory. Please note that this utility can only be used when using the
“software” CRC module. To provide a reference value when using the on chip CRC peripheral, an external CRC
program can be used or alternatively an example of an internal application based reference generation is included in the
test harness project.
Figure 9: Adding Reference CRC

Renesas RL78 Series Specifications

General

Core	RL78
CPU Clock Speed	Up to 32 MHz
Flash Memory	Up to 512 KB
RAM	Up to 32 KB
Operating Voltage	1.6 V to 5.5 V
Low Power Modes	HALT, STOP, SNOOZE
CPU Architecture	16-bit
Temperature Range	-40°C to +85°C
Package	LQFP
Timers	16-bit timers
Communication Interfaces	UART, I2C, LIN
A/D Converter	12-bit