R5F72115D160FPV datasheet(909/1228 Pages) RENESAS

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Section 21 Flash Memory

Rev. 2.00 May. 08, 2008 Page 885 of 1200

REJ09B0344-0200

Section 21 Flash Memory

This LSI has 512-kbyte on-chip flash memory. The flash memory has the following features.

21.1

Features

• Two flash-memory MATs, with one selected by the mode in which the LSI starts up

The on-chip flash memory has two memory spaces in the same address space (hereafter

referred to as memory MATs). The mode setting when the LSI starts up determines the

memory MAT that is currently mapped. The MAT can be switched by bank-switching after the

LSI has started up.

⎯ Size of the user MAT, from which booting-up proceeds after a power-on reset in user

mode: 512 kbytes

⎯ Size of the user boot MAT, from which booting-up proceeds after a power-on reset in user

boot mode: 12 kbytes

• Three on-board programming modes and one off-board programming mode

On-board programming modes

Boot Mode: The on-chip SCIF interface is used for programming in this mode. Either the user

MAT or user-boot MAT can be programmed, and the bit rate for data transfer between the host

and this LSI are automatically adjusted.

User Program Mode: This mode allows programming of the user MAT via any desired

interface.

User Boot Mode: This mode allows writing of a user boot program via any desired interface

and programming of the user MAT.

Off-board programming mode

Programmer Mode: This mode allows programming of the user MAT and user boot MAT

with the aid of a PROM programmer.

• Downloading of an on-chip program to provide an interface for programming/erasure

This LSI has a dedicated programming/erasing program. After this program has been

downloaded to the on-chip RAM, programming or erasing can be performed by setting

parameters as arguments. “User branching” is also supported.

R5F72115D160FPV Datasheet(PDF) 909 Page - Renesas Technology Corp