參數(shù)資料
型號： AM49LV6408MT11IT
廠商： SPANSION LLC
元件分類： 存儲器
英文描述： Stacked Multi-chip Package (MCP) 64 Mbit (4 M x 16 bit) Flash Memory and 8 Mbit (512K x 16-Bit)
中文描述： SPECIALTY MEMORY CIRCUIT, PBGA69
封裝： 10 X 8 MM, 1.20 MM HEIGHT, FBGA-69
文件頁數(shù)： 31/63頁
文件大?。?/td> 540K
代理商： AM49LV6408MT11IT
November 5, 2003
Am49LV6408M
29
A D V A N C E I N F O R M A T I O N
Figure 4.
Write Buffer Programming Operation
Write “Write to Buffer”
command and
Sector Address
Write number of addresses
to program minus 1(WC)
and Sector Address
Write program buffer to
flash sector address
Write first address/data
Write to a different
sector address
FAIL or ABORT
PASS
Read DQ7 - DQ0 at
Last Loaded Address
Read DQ7 - DQ0 with
address = Last Loaded
Address
Write next address/data pair
WC = WC - 1
WC = 0
Part of “Write to Buffer”
Command Sequence
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Abort Write to
Buffer Operation
DQ7 = Data
DQ7 = Data
DQ5 = 1
DQ1 = 1
Write to buffer ABORTED.
Must write “Write-to-buffer
Abort Reset” command
sequence to return
to read mode.
Notes:
1.
When Sector Address is specified, any address in
the selected sector is acceptable. However, when
loading Write-Buffer address locations with data, all
addresses must fall within the selected Write-Buffer
Page.
DQ7 may change simultaneously with DQ5.
Therefore, DQ7 should be verified.
If this flowchart location was reached because
DQ5= “1”, then the device FAILED. If this
flowchart location was reached because DQ1=
“1”, then the Write to Buffer operation was
ABORTED. In either case, the proper reset
command must be written before the device can
begin another operation. If DQ1=1, write the
Write-Buffer-Programming-Abort-Reset
command. if DQ5=1, write the Reset command.
2.
3.
4.
See
Table 12
for command sequences required for
write buffer programming.
(Note 3)
(Note 1)
(Note 2)
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