R5F72115D160FPV datasheet(917/1228 Pages) RENESAS

917 / 1228 page

Section 21 Flash Memory

Rev. 2.00 May. 08, 2008 Page 893 of 1200

REJ09B0344-0200

21.2.6

Programming/Erasing Interface

Programming/erasing is executed by downloading the on-chip program to the on-chip RAM and

specifying the program address/data and erase block by using the interface registers/parameters.

The procedure program is made by the user in user program mode and user boot mode. The

overview of the procedure is as follows. For details, see section 21.5.2, User Program Mode.

Download on-chip

program by setting VBR,

FKEY, and SCO bits.

Initialization execution

(on-chip program execution)

Select on-chip program

to be downloaded and

set download destination

Programming (in 256-byte

units) or erasing (in

one-block units)

(on-chip program execution)

Start user procedure

program for

programming/erasing.

End user procedure

program

Programming/

erasing

completed?

Yes

Figure 21.5 Overview of User Procedure Program

(1) Selection of On-Chip Program to be Downloaded and Setting of Download Destination

This LSI has programming/erasing programs and they can be downloaded to the on-chip

RAM. The on-chip program to be downloaded is selected by setting the corresponding bits in

the programming/erasing interface registers. The download destination can be specified by

FTDAR.

R5F72115D160FPV Datasheet(PDF) 917 Page - Renesas Technology Corp