參數(shù)資料
型號(hào)： S29CD016G0JFFM012
廠商： Spansion Inc.
英文描述： 32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O
中文描述： 32兆位（1米× 32位），16兆位（512k × 32的位），2.5伏，只有突發(fā)模式，雙啟動(dòng)，同步讀/寫閃存與VersatileI內(nèi)存/輸出
文件頁數(shù)： 35/87頁
文件大?。?/td> 792K
代理商： S29CD016G0JFFM012
November 14, 2005 S29CD-G_00_B0
S29CD-G Flash Family
33
P r e l i m i n a r y
Initial Access Delay Configuration
The frequency configuration informs the device of the number of clocks that must elapse after
ADV# is driven active before data is available. This value is determined by the input clock
frequency.
Sector Protection
The device features several levels of sector protection, which can disable both the program and
erase operations in certain sectors or sector groups
Sector and Sector Groups
The distinction between sectors and sector groups is fundamental to sector protection. Sector are
individual sectors that can be individually sector protected/unprotected. These are the outermost
4 Kword boot sectors, that is, SA0 to SA7 and SA70 to SA77. See
Table 35 on page 35
,
Table 23
on page 19
,
Table 24 on page 20
,
Table 25 on page 21
, and
Table 26 on page 22
.
Sector groups are a collection of three or four adjacent 32 kword sectors. For example, sector
group SG8 is comprised of sector SA8 to SA10. When any sector in a sector group is protected/
unprotected, every sector in that group is protection/unprotected. See
Table 35
,
Table 23
,
Table 24
,
Table 25
, and
Table 26
.
Persistent Sector Protection
A command sector protection method that replaces the old 12 V controlled protection method.
Passw ord Sector Protection
A highly sophisticated protection method that requires a password before changes to certain sec-
tors or sector groups are permitted.
W P# Hardw are Protection
A write protect pin that can prevent program or erase to the two outermost 8 Kbytes sectors in
the 75% bank.
All parts default to operate in the Persistent Sector Protection mode. The customer must then
choose if the Persistent or Password Protection method is most desirable. There are two one-time
programmable non-volatile bits that define which sector protection method is used. If the cus-
tomer decides to continue using the Persistent Sector Protection method, they must set the
Persistent Sector Protection Mode Locking Bit
. This permanently sets the part to operate
only using Persistent Sector Protection. If the customer decides to use the password method, they
must set the
Passw ord Mode Locking Bit
. This permanently sets the part to operate only using
password sector protection.
It is important to remember that setting either the
Persistent Sector Protection Mode Lock-
ing Bit
or the
Passw ord Mode Locking Bit
permanently selects the protection mode. It is not
possible to switch between the two methods once a locking bit is set.
I t is important that one
mode is explicitly selected w hen the device is first programmed, rather than relying on
Table 34. Configuration Register After Device Reset
CR15
CR14
CR13
CR12
CR11
CR10
CR9
CR8
RM
Reserve
I AD3
I AD2
I AD1
I AD0
DOC
W C
1
0
0
1
1
1
0
0
CR7
CR6
CR5
CR4
CR3
CR2
CR1
CR0
BS
CC
Reserve
Reserve
Reserve
BL2
BL1
BL0
1
1
0
0
0
1
0
0
相關(guān)PDF資料
PDF描述
S29CD016G0JFFM100 32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O
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S29CD016G0JFFM200 32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S29CD016G0JFFM100 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O
S29CD016G0JFFM102 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O
S29CD016G0JFFM110 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O
S29CD016G0JFFM112 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O
S29CD016G0JFFM200 制造商:SPANSION 制造商全稱:SPANSION 功能描述:32 Megabit (1M x 32-Bit), 16 Megabit (512K x 32-Bit) 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/ Write Flash Memory with VersatileI/O
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