參數(shù)資料
型號: 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,頁模式閃存
文件頁數(shù): 26/85頁
文件大?。?/td> 940K
代理商: S29PL256N65FAW002
24
S29PL-N MirrorBit Flash Family
S29PL-N_00_A4 November 23, 2005
P r e l i m i n a r y
See
Table 12.1
for command sequence details.
Legend:
L = Logic Low = V
IL
, H = Logic High = V
IH
, BA = Bank Address, SA = Sector Address, X = Don’t care.
Note:
For the PL129N Either CE1# or CE2# must be low to access Autoselect Codes
Notes:
1.
2.
3.
The following is a C source code example of using the autoselect function to read the manufac-
turer ID. 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.
Any offset within the device works.
BA = Bank Address. The bank address is required.
base = base address.
Table 7.4 Autoselect Codes
Description
CE#
See NoteOE# WE#A
A12
A10 A9 A8 A7 A6A5
A4
A3 A2 A1 A0
DQ15 to DQ0
Manufacturer ID
L
L
H
BA
X
X
X
L
L
X
L
L
L
L
0001h
D
Read
Cycle 1
L
L
H
BA
X
X
X
L
L
L
L
L
L
H
227Eh
Read
Cycle 2
L
H
H
H
L
223Ch (PL256N)
2220h (PL127N)
2221h (PL129N)
Read
Cycle 3
L
H
H
H
H
2200h (PL256N)
2200h (PL127N)
2200h (PL129N)
Sector
Protection
Verification
L
L
H
SA
X
X
X
L
L
L
L
L
H
L
0000h
Unprotected
(Neither DYB nor PPB Locked),
0001h
Protected
(Either DYB or PPB Locked)
Indicator Bit
L
L
H
BA
X
X
X
L
L
L
L
L
H
H
- DQ15 - DQ8 = 0
- 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,
11 = No WP# Protection
- DQ2 - DQ0 = 0
Software Functions and Sample Code
Table 7.5 Autoselect Entry
(LLD Function = lld_ AutoselectEntryCmd)
Cycle
Operation
Word Address
Data
Unlock Cycle 1
Write
BAx555h
0x00AAh
Unlock Cycle 2
Write
BAx2AAh
0x0055h
Autoselect Command
Write
BAx555h
0x0090h
Table 7.6 Autoselect Exit
(LLD Function = lld_ AutoselectExitCmd)
Cycle
Operation
Word Address
Data
Unlock Cycle 1
Write
base + xxxh
0x00F0h
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