RG14 datasheet(23/56 Pages) RENESAS

23 / 56 page

RL78 Family

Chapter 3

EEL Functional Specifications

EEPROM Emulation Library Pack02

R01US0068EJ0100

Rev.1.00

Page 23 of 53

Mar. 28, 2014

3.4

Command Operation Flowchart

The figure below shows the basic procedure to perform read and write operations for data flash by using the

EEL.

Figure 3-3

Command Operation Flowchart

(1) EEL_Execute function

Perform operations for data Flash.

(2) Busy state check

Check status_enu of the request structure (eel_request_t). When status_enu is EEL_BUSY, continue the data

flash operation. If status_enu is other than EEL_BUSY, terminate the data flash operation with an error.

(3) EEL_Handler function

Control the EEL while it is running. By repeating the execution of the EEL_Handler function, continue the

data flash operation.

(4) Final state check

If the final state is EEL_OK, the operation ends normally. Otherwise, it will be terminated with an error.

(1)EEL_Execute function

Start

Error

(2) Busy state check

(3) EEL_Handler function

(4) Final state check

Normal end

Not busy

Busy

Normal end

Abnormal end

RG14 Datasheet(PDF) 23 Page - Renesas Technology Corp