参数资料
型号: S29WS064N0PBAW011
厂商: Spansion Inc.
英文描述: 256/128/64 MEGABIT CMOS 1.8 VOLT ONLY SIMULTANEOUS READ/WRITE BURST MODE FLASH MEMORY
中文描述: 256/128/64兆位的CMOS 1.8伏只有同时读/写突发模式闪存
文件页数: 22/99页
文件大小: 1091K
代理商: S29WS064N0PBAW011
January 25, 2005 S29WS-N_00_G0
27
Ad vance
Information
The following is a C source code example of using the autoselect function to read the manu-
facturer ID. Refer to the Spansion Low Level Driver User’s Guide (available on www.amd.com
and www.fujitsu.com) for general information on Spansion Flash memory software develop-
ment guidelines.
/* Here is an example of Autoselect mode (getting manufacturer ID) */
/* Define UINT16 example: typedef unsigned short UINT16; */
UINT16 manuf_id;
/* Auto Select Entry */
*( (UINT16 *)bank_addr + 0x555 ) = 0x00AA; /* write unlock cycle 1 */
*( (UINT16 *)bank_addr + 0x2AA ) = 0x0055; /* write unlock cycle 2 */
*( (UINT16 *)bank_addr + 0x555 ) = 0x0090; /* write autoselect command */
/* multiple reads can be performed after entry */
manuf_id = *( (UINT16 *)bank_addr + 0x000 ); /* read manuf. id */
/*
Autoselect exit */
*( (UINT16 *)base_addr + 0x000 ) = 0x00F0; /* exit autoselect (write reset command) */
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