Overview

This driver controls Renesas serial EEPROM products that employ the latest memory technology to deliver low-voltage operation, low power consumption, high-speed operation, and high reliability. The driver is configured to work with the industry-standard bus of the serial EEPROM.

  • Data can be read and written simply by calling user API functions.
  • The clock-synchronous serial I/O function of the microcontroller and a single port are used for control.
  • Application Examples：
    • Mobile phones/Cordless phones/Fax machine: Abbreviated dialing systems/Communication History Administration
    • TV/VCR/Remote Control; Channel, Mode setting
    • Measurement devices: Application Software, Log data storage
    • Home telephones: Fine adjustment setting, usage status history administration
    • LCD TV: Parameter settings
    • Camera modules: Adjustment settings
    • DVC: Adjustment settings
  • Learn More

Documentation

Design & Development

Additional Details

Application Examples

  • Mobile phones/Cordless phones/Fax machine: Abbreviated dialing systems/Communication History Administration
  • TV/VCR/Remote Control; Channel, Mode setting
  • Measurement devices: Application Software, Log data storage
  • Home telephones: Fine adjustment setting, usage status history administration
  • LCD TV: Parameter settings
  • Camera modules: Adjustment settings
  • DVC: Adjustment settings
app-eeprom-driver

System Configuration

For systems on which the following devices are mounted, you can use it to control the each devices:

Slave Device Renesas Serial EEPROM
(R1EX25xxx and HN58X25xxx Series)
Master Device Renesas MCU
(RX, RL78, 78K, R8C and M16C Family

Please refer to Supported Memory for detailed Memory Information, Target devices and Products lineup for detailed MCU information.

Application Configuration

Application Configuration

Support Memory

R1EX25xxx Series

  • R1EX25512A (512Kbit)
  • R1EX25256A (256Kbit)
  • R1EX25128A (128Kbit)
  • R1EX25064A (64Kbit)
  • R1EX25032A (32Kbit)
  • R1EX25164A (16Kbit)
  • R1EX25008A (8Kbit)
  • R1EX25004A (4Kbit)
  • R1EX25002A (2Kbit)

HN58X25xxx Series

  • N58X25256 (256Kbit)
  • HN58X25128 (128Kbit)

Target Devices and Products lineup

Here we present each software lineup by MCU. Please refer to each application note for a corresponding Integrated Development Environment.

RX Family (FIT module)

The following software is a FIT module, i.e. within our FIT range, so it can easily be combined with other FIT modules. For example, transfer by a DMAC or DTC can easily be handled by combining this module with a DMAC or DTC module, both of which are currently available within our FIT range. (About FIT)

spi-eeprom-rx-fit-e

Block Diagram

Sample Program list
Slave Device Control Software (Higher-level layer of the software)
Target Memory Application Note Title
R1EX25xxx and HN58X25xxx Series SPI Serial EEPROM RX Family Clock Synchronous Control Module for EEPROM Access Firmware Integration Technology Rev.3.10 - Sample Code (ZIP)
Clock Synchronous Single Master Control Software (Lower-level layer of the software)
Target MCU Application Note Title
RX72T, RX71M, RX66T, RX64M, RX231, RX113, RX111, RX110 RX Family RSPI Module Using Firmware Integration Technology Rev.3.50 - Sample Code (ZIP)
RX Family QSPI Clock Synchronous Single Master Control Module Using Firmware Integration Technology Rev.1.21 - Sample Code (ZIP)
RX Family DMAC Module Using Firmware Integration Technology Rev.3.30 - Sample Code (ZIP)
RX Family DTC Module Using Firmware Integration Technology Rev.4.50 - Sample Code (ZIP)
RX Family CMT Module Using Firmware Integration Technology Rev.5.70 - Sample Code (ZIP)

RX (except FIT module), RL78 and 78K Family

spi-eeprom-e

Block Diagram

Sample Program list
Slave Device Control Software (Higher-level layer of the software)
Target Memory Application Note Title
R1EX25xxx and HN58X25xxx Series
SPI Serial EEPROM		 RX Family, RL78 Family, 78K0R/Kx3-L Renesas R1EX25xxx Series Serial EEPROM Control Software Rev.1.06 - Sample Code (ZIP | English, 日本語)
Clock Synchronous Single Master Control Software (Lower-level layer of the software)
Target MCU Application Note Title
RX Family:
RX210, RX21A, RX220, RX63N, RX63T, RX111, RX64M		 RX210, RX21A, RX220, RX63N, RX63T, RX111, RX64M Group Clock Synchronous Single Master Control Software Using the SCI Rev.1.07 - Sample Code (ZIP | English, 日本語)
RX Family Clock Synchronous Single Master Control Software Using the RSPI Rev.1.11 - Sample Code (ZIP | English, 日本語)
RX62N RX62N Group Clock Synchronous Single Master Control Software Using the SCI Rev.1.01 - Sample Code (ZIP | English, 日本語)
RX62N Group Clock Synchronous Single Master Control Software Using the RSPI Rev.1.04 - Sample Code (ZIP)
RX610 RX610 Group Clock Synchronous Single Master Control Software Using the SCI - Sample Code (ZIP | English, 日本語)
RL78 Family:
RL78/G14, RL78/G1C, RL78/L12, RL78/L13, RL78/L1C		 RL78/G14, RL78/G1C, RL78/L12, RL78/L13, RL78/L1C, RL78/G23 Group Clock Synchronous Single Master Control Software Using CSI Mode of Serial Array Unit Rev.1.07 - Sample Code (ZIP)
78K Family
78K0R/Kx3		 78K0R/Kx3-L Clock Synchronous Single Master Control Software Using CSI Mode of Serial Array Unit Ver.2.02 (ZIP | English, 日本語)

R8C and M16C Family

The following software controls the slave device and master device in systems that include M16C or R8C Family MCUs.

Slave Device and Master Device Control Software (Common Software)
Target MCU Application Note Title
R8C Family Serial EEPROM HN58X25xxx Series Sample Program M16C（UART） (ZIP)
M16C Family Serial EEPROM HN58X25xxx Series Sample Program M16C（UART） (ZIP)
Serial EEPROM HN58X25xxx Series Sample Program M16C（SI/O） (ZIP)

master device in systems that include M16C or R8C Family MCUs.