參數(shù)資料
型號(hào)： S70WS512N00BFWAB2
廠商： Spansion Inc.
英文描述： Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory
中文描述： 同硅晶片堆疊多芯片產(chǎn)品（MCP）的512兆位（32兆× 16位）的CMOS 1.8伏，只有同時(shí)讀/寫(xiě)，突發(fā)模式閃存
文件頁(yè)數(shù)： 62/93頁(yè)
文件大小： 846K
代理商： S70WS512N00BFWAB2
March 14, 2005 S70WS512N00_00_A0
S70WS512N00 Based MCPs
63
A d v a n c e I n f o r m a t i o n
The following are C functions and source code examples of using the Secured Silicon Sector
Entry, Program, and exit commands. Refer to the
Spansion Low Level Driver User’s Guide
(available soon on www.amd.com and www.fujitsu.com) for general information on Spansion
Flash memory software development guidelines.
Note:
Base = Base Address.
/* Example: SecSi Sector Entry Command */
*( (UINT16 *)base_addr + 0x555 ) = 0x00AA; /* write unlock cycle 1 */
*( (UINT16 *)base_addr + 0x2AA ) = 0x0055; /* write unlock cycle 2 */
*( (UINT16 *)base_addr + 0x555 ) = 0x0088; /* write Secsi Sector Entry Cmd */
Note:
Base = Base Address.
/* Once in the SecSi Sector mode, you program */
/* words using the programming algorithm. */
Note:
Base = Base Address.
/* Example: SecSi Sector Exit Command */
*( (UINT16 *)base_addr + 0x555 ) = 0x00AA; /* write unlock cycle 1 */
*( (UINT16 *)base_addr + 0x2AA ) = 0x0055; /* write unlock cycle 2 */
*( (UINT16 *)base_addr + 0x555 ) = 0x0090; /* write SecSi Sector Exit cycle 3 */
*( (UINT16 *)base_addr + 0x000 ) = 0x0000; /* write SecSi Sector Exit cycle 4 */
Software Functions and Sample Code
Table 11.2 Secured Silicon Sector Entry
(LLD Function = lld_ SecSiSectorEntryCmd)
Cycle
Operation
Byte Address
Word Address
Data
Unlock Cycle 1
Write
Base + AAAh
Base + 555h
00AAh
Unlock Cycle 2
Write
Base + 554h
Base + 2AAh
0055h
Entry Cycle
Write
Base + AAAh
Base + 555h
0088h
Table 11.3 Secured Silicon Sector Program
(LLD Function = lld_ ProgramCmd)
Cycle
Operation
Byte Address
Word Address
Data
Unlock Cycle 1
Write
Base + AAAh
Base + 555h
00AAh
Unlock Cycle 2
Write
Base + 554h
Base + 2AAh
0055h
Program Setup
Write
Base + AAAh
Base + 555h
00A0h
Program
Write
Word Address
Word Address
Data Word
Table 11.4 Secured Silicon Sector Exit
(LLD Function = lld_ SecSiSectorExitCmd)
Cycle
Operation
Byte Address
Word Address
Data
Unlock Cycle 1
Write
Base + AAAh
Base + 555h
00AAh
Unlock Cycle 2
Write
Base + 554h
Base + 2AAh
0055h
Exit Cycle
Write
Base + AAAh
Base + 555h
0090h
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