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L160DB90VC bảng dữ liệu(PDF) 29 Page - Advanced Micro Devices

tên linh kiện L160DB90VC
Giải thích chi tiết về linh kiện  16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
PDF  52 Pages
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nhà sản xuất  AMD [Advanced Micro Devices]
Trang chủ  http://www.amd.com
Logo AMD - Advanced Micro Devices

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22358B7 May 5, 2006
Am29LV160D
27
DA TA
SH EET
toggling, the device has successfully completed the
program or erase operation. If it is still toggling, the de-
vice 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 de-
termines that the toggle bit is toggling and DQ5 has
not gone high. The system may continue to monitor
the toggle bit and DQ5 through successive read cy-
cles, 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 re-
turns to determine the status of the operation (top of
Figure 6).
START
No
Yes
Yes
DQ5 = 1?
No
Yes
Toggle Bit
= Toggle?
No
Program/Erase
Operation Not
Complete, Write
Reset Command
Program/Erase
Operation Complete
Read DQ7–DQ0
Toggle Bit
= Toggle?
Read DQ7–DQ0
Twice
Read DQ7–DQ0
Notes:
1. Read toggle bit twice to determine whether or not it is
toggling. See text.
2. Recheck toggle bit because it may stop toggling as DQ5
changes to “1”. See text.
Figure 6.
Toggle Bit Algorithm
(Note 1)
(Notes
1, 2)



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