參數(shù)資料
型號(hào): S29PL256N65FAW002
廠商: Spansion Inc.
英文描述: 256/128/128 Mb (16/8/8 M x 16-Bit) CMOS, 3.0 Volt-only Simultaneous Read/Write, Page-Mode Flash Memory
中文描述: 256/128/128字節(jié)(16/8/8 M中的x 16位),3.0伏的CMOS只同步讀/寫,頁(yè)模式閃存
文件頁(yè)數(shù): 29/85頁(yè)
文件大?。?/td> 940K
代理商: S29PL256N65FAW002
November 23, 2005 S29PL-N_00_A4
S29PL-N MirrorBit Flash Family
27
P r e l i m i n a r y
Figure 7.1 Single Word Program Operation
Note:
Base = Base Address.
The following is a C source code example of using the single word program function. See 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 development guidelines.
/* Example: Program Command */
*((UINT16 *)base_addr + 0x555) = 0x00AA; /* write unlock cycle 1 */
*((UINT16 *)base_addr + 0x2AA) = 0x0055; /* write unlock cycle 2 */
*((UINT16 *)base_addr + 0x555) = 0x00A0; /* write program setup command */
*((UINT16 *)pa) = data; /* write data to be programmed */
/* Poll for program completion */
Software Functions and Sample Code
Table 7.7 Single Word Program
(LLD Function = lld_ ProgramCmd)
Cycle
Operation
Word Address
Data
Unlock Cycle 1
Write
Base + 555h
00AAh
Unlock Cycle 2
Write
Base + 2AAh
0055h
Program Setup
Write
Base + 555h
00A0h
Program
Write
Word Address
Data Word
Write Unlock Cycles:
Address 555h, Data AAh
Address 2AAh, Data 55h
Write Program Command:
Address 555h, Data A0h
Program Data to Address:
PA, PD
Unlock Cycle 1
Unlock Cycle 2
Setup Command
Program Address (PA),
Program Data (PD)
FAIL. Issue reset command
to return to read array mode.
Perform Polling Algorithm
(see Write Operation Status
flowchart)
Yes
Yes
No
No
Polling Status
= Busy
Polling Status
= Done
Error condition
(Exceeded Timing Limits)
PASS. Device is in
read mode.
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