SH7262 datasheet(42/45 Pages) RENESAS

42 / 45 page

SH7262/SH7264 Group

High-speed Read/Write Serial Flash Memory

Using the Renesas Serial Peripheral Interface

REJ06B0889-0100/Rev.1.00

June 2009

Page 42 of 45

3.24

Sample Program Listing "serial_flash.h" (2/2)

#ifndef _SERIAL_FLASH_H_

#define _SERIAL_FLASH_H_

/* ==== Macro definition ==== */

#define SF_PAGE_SIZE

256

/* Page size of serial flash memory */

#define SF_SECTOR_SIZE

0x10000

/* Sector size = 64 KB

#define SF_NUM_OF_SECTOR

/* Number of sectors: 32

enum sf_req{

SF_REQ_PROTECT = 0,

/* Requests to protect */

SF_REQ_UNPROTECT

/* Requests to unprotect */

};

/* ==== Function prototype declaration ==== */

void sf_init_serial_flash(void);

void sf_protect_ctrl(enum sf_req req);

void sf_chip_erase(void);

void sf_sector_erase(int sector_no);

void sf_byte_program(unsigned long addr, unsigned char *buf, int size);

void sf_byte_read(unsigned long addr, unsigned char *buf, int size);

void sf_byte_read_long(unsigned long addr, unsigned long *buf, int size);

/* ==== Variable definition ==== */

#endif /* _SERIAL_FLASH_H_ */

/* End of File */

SH7262 Datasheet(PDF) 42 Page - Renesas Technology Corp