R01US0068EJ0100 Datasheet, PDF (30/56 Pages) Renesas Technology Corp – EEPROM Emulation Library

RL78 Family
EEPROM Emulation Library Pack02
Chapter 4 Using EEPROM Emulation
(6) Data size of each data identifier (data ID)
A table to define the data size of each identifier is provided below. This is called an EEL descriptor table.
The EEL can only add identifiers while the program is running. Data to be written must be registered in the
EEL descriptor table in advance.
Figure 4-1 EEL Descriptor Table (When there are eight different data)
__far const eel_u08 eel_descriptor [ Number of stored data items + 2 ]
EEL_VAR_NO
Byte size of data ID1
Byte size of data ID2
Byte size of data ID3
Byte size of data ID4
Byte size of data ID5
Byte size of data ID6
Byte size of data ID7
Byte size of data ID8
0x00
・EEL_VAR_NO
User-specified number of data items used in the EEL
・Byte size of Data IDx
User-specified size of user data (in bytes)
・Termination area (0x00)
Specify 0 as the termination information.
R01US0068EJ0100 Rev.1.00
Mar. 28, 2014
Page 30 of 53