參數(shù)資料
型號： S29WS128N0LBFW010
廠商： SPANSION LLC
元件分類： PROM
英文描述： 256/128/64 MEGABIT CMOS 1.8 VOLT ONLY SIMULTANEOUS READ/WRITE BURST MODE FLASH MEMORY
中文描述： 8M X 16 FLASH 1.8V PROM, 70 ns, PBGA84
封裝： 11.60 X 8 MM, LEAD FREE, PLASTIC, FBGA-84
文件頁數(shù)： 19/95頁
文件大?。?/td> 1745K
代理商： S29WS128N0LBFW010
26
S29WSxxxN_00_F0 October 29, 2004
Pr e l i m i n a r y
To access the Autoselect codes, the host system must issue the Autoselect command.
The Autoselect command sequence may be written to an address within a bank that is
either in the read or erase-suspend-read mode.
The Autoselect command may not be written while the device is actively programming or
erasing in the other bank. Autoselect does not support simultaneous operations or burst
mode.
The system must write the reset command to return to the read mode (or erase-suspend-
read mode if the bank was previously in Erase Suspend).
See Table 12.1 for command sequence details.
Table 7.16. Autoselect Addresses
Description
Address
Read Data
Manufacturer ID
(BA) + 00h
0001h
Device ID, Word 1
(BA) + 01h
227Eh
Device ID, Word 2
(BA) + 0Eh
2230 (WS256N)
2231 (WS128N)
2232 (WS064N)
Device ID, Word 3
(BA) + 0Fh
2200
Indicator Bits
(BA) + 03h
DQ15 - DQ8 = Reserved
DQ7 (Factory Lock Bit): 1 = Locked, 0 = Not Locked
DQ6 (Customer Lock Bit): 1 = Locked, 0 = Not Locked
DQ5 (Handshake Bit): 1 = Reserved, 0 = Standard Handshake
DQ4, DQ3 (WP# Protection Boot Code): 00 = WP# Protects both Top Boot and
Bottom Boot Sectors. 01, 10, 11 = Reserved
DQ2 = Reserved
DQ1 (DYB Power up State [Lock Register DQ4]): 1 = Unlocked (user option),
0 = Locked (default)
DQ0 (PPB Eraseability [Lock Register DQ3]): 1 = Erase allowed,
0 = Erase disabled
Sector Block Lock/
Unlock
(SA) + 02h
0001h = Locked, 0000h = Unlocked
Note: For WS128N and WS064, DQ1 and DQ0 will be reserved.
Software Functions and Sample Code
Table 7.17. Autoselect Entry
(LLD Function = lld_AutoselectEntryCmd)
Cycle
Operation
Byte Address
Word Address
Data
Unlock Cycle 1
Write
BAxAAAh
BAx555h
0x00AAh
Unlock Cycle 2
Write
BAx555h
BAx2AAh
0x0055h
Autoselect Command
Write
BAxAAAh
BAx555h
0x0090h
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