參數(shù)資料
型號： AM29LV160MB85PCI
廠商： Advanced Micro Devices, Inc.
英文描述： 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) MirrorBit TM 3.0 Volt-only Boot Sector Flash Memory
中文描述： 16兆位（2米× 8位/ 1個M x 16位）的MirrorBit?3.0伏，只引導(dǎo)扇區(qū)閃存
文件頁數(shù)： 38/63頁
文件大?。?/td> 967K
代理商： AM29LV160MB85PCI
36
Am29LV160M
25974B5 January31,2007
D a t a S h e e t
for erasure. Thus, both status bits are required for sector and mode information.
Refer to
Table 12, on page 38
to compare outputs for DQ2 and DQ6.
Figure 8, on page 37
shows the toggle bit algorithm in flowchart form, and the
section
“Reading Toggle Bits DQ6/DQ2”
explains the algorithm. See also the
“DQ6: Toggle Bit I” on page 35
subsection.
Figure 20, on page 48
shows the tog-
gle bit timing diagram.
Figure 21, on page 49
shows the differences between DQ2
and DQ6 in graphical form.
Reading Toggle Bits DQ6/DQ2
Refer to
Figure 8, on page 37
for the following discussion. Whenever the system
initially begins reading toggle bit status, it must read DQ7–DQ0 at least twice
in a row to determine whether a toggle bit is toggling. Typically, the system
would note and store the value of the toggle bit after the first read. After the
second read, the system would compare the new value of the toggle bit with
the first. If the toggle bit is not toggling, the device completed the program or
erase operation. The system can read array data on DQ7–DQ0 on the following
read cycle.
However, if after the initial two read cycles, the system determines that the toggle
bit is still toggling, the system also should note whether the value of DQ5 is high
(see the section on DQ5). If it is, the system should then determine again
whether the toggle bit is toggling, since the toggle bit may have stopped toggling
just as DQ5 went high. If the toggle bit is no longer toggling, the device success-
fully completed the program or erase operation. If it is still toggling, the device
did not complete the operation successfully, and the system must write the reset
command to return to reading array data.
The remaining scenario is that the system initially determines that the toggle bit
is toggling and DQ5 did not go high. The system may continue to monitor the tog-
gle bit and DQ5 through successive read cycles, determining the status as
described in the previous paragraph. Alternatively, it may choose to perform
other system tasks. In this case, the system must start at the beginning of the
algorithm when it returns to determine the status of the operation (top of
Figure
8, on page 37
).
相關(guān)PDF資料
PDF描述
AM29LV160MB85WAI 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) MirrorBit TM 3.0 Volt-only Boot Sector Flash Memory
AM29LV160MB90EI 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) MirrorBit TM 3.0 Volt-only Boot Sector Flash Memory
AM29LV160MB90FI 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) MirrorBit TM 3.0 Volt-only Boot Sector Flash Memory
AM29LV160MB90PCI 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) MirrorBit TM 3.0 Volt-only Boot Sector Flash Memory
AM29LV160MB90WAI 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) MirrorBit TM 3.0 Volt-only Boot Sector Flash Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM29LV160MB90EI 制造商:Spansion 功能描述:Flash Mem Parallel 3V/3.3V 16M-Bit 2M x 8/1M x 16 90ns 48-Pin TSOP
AM29LV160MB90WAI 制造商:Spansion 功能描述:Flash Mem Parallel 3V/3.3V 16M-Bit 2M x 8/1M x 16 90ns 48-Pin FBGA
AM29LV160MT110EI 制造商:Spansion 功能描述:16M (2MX8/1MX16) 3V, MIRRORBIT, TOP, TSOP48, IND - Trays
AM29LV160MT70EI 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 16MBIT 2MX8/1MX16 70NS 48TSOP - Trays
AM29LV200BB-120EC 制造商:Advanced Micro Devices 功能描述:128K X 16 FLASH 3V PROM, 120 ns, PDSO48
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