s71jl064ha0bfw62 Advanced Micro Devices, s71jl064ha0bfw62 Datasheet - Page 62
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s71jl064ha0bfw62
Manufacturer Part Number
s71jl064ha0bfw62
Description
Stacked Multi-chip Product Mcp Flash Memory And Psram Cmos 3.0volt-only, Simultaneous Operation Flash Memories And Static Ram/pseudo-static Ram
Manufacturer
Advanced Micro Devices
Datasheet
1.S71JL064HA0BFW62.pdf
(141 pages)
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62
Chip Erase Command Sequence
Table 11
Chip erase is a six bus cycle operation. The chip erase command sequence is ini-
tiated by writing two unlock cycles, followed by a set-up command. Two
additional unlock write cycles are then followed by the chip erase command,
which in turn invokes the Embedded Erase algorithm. The device does not require
the system to preprogram prior to erase. The Embedded Erase algorithm auto-
matically preprograms and verifies the entire memory for an all zero data pattern
prior to electrical erase. The system is not required to provide any controls or tim-
ings during these operations.
for the chip erase command sequence.
When the Embedded Erase algorithm is complete, that bank returns to the read
mode and addresses are no longer latched. The system can determine the status
of the erase operation by using DQ7, DQ6, DQ2, or RY/BY#. Refer to the
Operation
Any commands written during the chip erase operation are ignored. However,
note that a hardware reset immediately terminates the erase operation. If that
occurs, the chip erase command sequence should be reinitiated once that bank
has returned to reading array data, to ensure data integrity. Note that the SecSi
Sector, autoselect, and CFI functions are unavailable when an erase operation is
in progress.
for program command sequence.
Status" section section for information on these status bits.
Increment Address
Figure 4. Program Operation
Embedded
in progress
algorithm
Table 11
Program
S29JL064H
P r e l i m i n a r y
No
shows the address and data requirements
Command Sequence
Write Program
Last Address?
Programming
from System
Verify Data?
Completed
Data Poll
START
Yes
Yes
No
S71JLxxxHxx_00A1 February 25, 2004
"Write
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