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S29GL01GP bảng dữ liệu(PDF) 23 Page - SPANSION

tên linh kiện S29GL01GP
Giải thích chi tiết về linh kiện  1 Gigabit, 512 Megabit, 256 Megabit and 128 Megabit 3.0 Volt-only Page Mode Flash Memory featuring 90 nm MirrorBit Process Technology
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nhà sản xuất  SPANSION [SPANSION]
Trang chủ  http://www.spansion.com
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S29GL01GP bảng dữ liệu(HTML) 23 Page - SPANSION

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October 22, 2012 S29GL-P_00_A14
S29GL-P MirrorBit® Flash Family
23
Data
She e t
Software Functions and Sample Code
Note
1. Any offset within the device works.
2. base = base address.
The following is a C source code example of using the autoselect function to read the manufacturer ID. Refer
to the Spansion Low Level Driver User’s Guide (available on www.spansion.com) for general information on
Spansion Flash memory software development 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 *)base_addr + 0x555 ) = 0x00AA; /* write unlock cycle 1 */
*( (UINT16 *)base_addr + 0x2AA ) = 0x0055; /* write unlock cycle 2 */
*( (UINT16 *)base_addr + 0x555 ) = 0x0090; /* write autoselect command */
/* multiple reads can be performed after entry */
manuf_id = *( (UINT16 *)base_addr + 0x000 ); /* read manuf. id */
/*
Autoselect exit */
*( (UINT16 *)base_addr + 0x000 ) = 0x00F0; /* exit autoselect (write reset command) */
Table 7.4 Autoselect Entry in System
(LLD Function = lld_AutoselectEntryCmd)
Cycle
Operation
Byte Address
Word Address
Data
Unlock Cycle 1
Write
Base + AAAh
Base + 555h
0x00AAh
Unlock Cycle 2
Write
Base + 555h
Base + 2AAh
0x0055h
Autoselect Command
Write
Base + AAAh
Base + 555h
0x0090h
Table 7.5 Autoselect Exit
(LLD Function = lld_AutoselectExitCmd)
Cycle
Operation
Byte Address
Word Address
Data
Autoselect Exit Command
Write
base + XXXh
base + XXXh
0x00F0h



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