m29dw128f-70za6t Numonyx, m29dw128f-70za6t Datasheet - Page 27
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m29dw128f-70za6t
Manufacturer Part Number
m29dw128f-70za6t
Description
128 Mbit 16mb X8 Or 8mb X16, Multiple Bank, Page, Boot Block 3v Supply Flash Memory
Manufacturer
Numonyx
Datasheet
1.M29DW128F-70ZA6T.pdf
(94 pages)
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M29DW128F
6
6.1
6.1.1
6.1.2
Command interface
All Bus Write operations to the memory are interpreted by the Command Interface.
Commands consist of one or more sequential Bus Write operations. Failure to observe a
valid sequence of Bus Write operations will result in the memory returning to Read mode.
The long command sequences are imposed to maximize data security.
The address used for the commands changes depending on whether the memory is in 16-
bit or 8-bit mode.
Standard commands
See either
summary of the Standard commands.
Read/Reset command
The Read/Reset command returns the memory to Read mode. It also resets the errors in
the Status Register. Either one or three Bus Write operations can be used to issue the
Read/Reset command.
The Read/Reset command can be issued, between Bus Write cycles before the start of a
program or erase operation, to return the device to Read mode. If the Read/Reset command
is issued during the time-out of a Block erase operation, the memory will take up to 10µs to
abort. During the abort period no valid data can be read from the memory.
The Read/Reset command will not abort an Erase operation when issued while in Erase
Suspend.
Auto Select command
The Auto Select command is used to read the Manufacturer Code, the Device Code, the
Protection Status of each block (Block Protection Status) and the Extended Block Protection
Indicator. It can be addressed to either Bank.
Three consecutive Bus Write operations are required to issue the Auto Select command.
Once the Auto Select command is issued Bus Read operations to specific addresses output
the Manufacturer Code, the Device Code, the Extended Block Protection Indicator and a
Block Protection Status (see
Table 7
Query command is issued.
and
Table 12
Table 8
, or
). The memory remains in Auto Select mode until a Read/Reset or CFI
Table 11
Table 11
, depending on the configuration that is being used, for a
and
Table 12
in conjunction with
Command interface
Table 4
,
Table 5
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