SH7264 datasheet(2/45 Pages) RENESAS

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SH7262/SH7264 Group

High-speed Read/Write Serial Flash Memory

Using the Renesas Serial Peripheral Interface

REJ06B0889-0100/Rev.1.00

June 2009

Page 2 of 45

Introduction

1.1

Specifications

• Use the serial flash memory of 2 MB (64 KB x 32 sectors, 256 bytes per page) to connect with the SH7264 MCU.

• Use channel 0 of the RSPI to access serial flash memory.

• Procedures are optimized to access the large volume data in high-speed.

1.2

Modules Used

• Renesas Serial Peripheral Interface (RSPI)

• General-purpose I/O ports

1.3

Applicable Conditions

MCU

SH7262/SH7264

Operating Frequency

Internal clock: 144 MHz

Bus clock: 72 MHz

Peripheral clock: 36 MHz

Integrated Development

Environment

Renesas Technology Corp.

High-performance Embedded Workshop Ver.4.04.01

C compiler

Renesas Technology SuperH RISC engine Family

C/C++ compiler package Ver.9.02 Release 00

Compiler options

Default setting in the High-performance Embedded Workshop

(-cpu=sh2afpu -fpu=single -object="$(CONFIGDIR)\$(FILELEAF).obj" -debug -

gbr=auto -chgincpath -errorpath -global_volatile=0 -opt_range=all -

infinite_loop=0 -del_vacant_loop=0 -struct_alloc=1 –nologo)

1.4

Related Application Note

Refer to the related application notes as follows:

• SH7262/SH7264 Group Example of Initialization

• SH7262/SH7264 Group Interfacing Serial Flash Memory Using the Renesas Serial Peripheral Interface

• SH7262/SH7264 Group Boot from the Serial Flash Memory

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