M58WR064HT datasheet(31/111 Pages) NUMONYX

Part #	M58WR064HT

Description	64 Mbit (4Mb x16, Multiple Bank, Burst) 1.8V supply Flash memories

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Manufacturer	NUMONYX [Numonyx B.V]

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M58WR064HT, M58WR064HB

Command interface - Factory program commands

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6.8

Exit Phase

Status Register P/E.C. bit SR7 set to ‘1’ indicates that the device has returned to Read

mode. A full Status Register check should be done to ensure that the block has been

successfully programmed. See the section on the Status Register for more details.

6.9

Quadruple Enhanced Factory Program Command

The Quadruple Enhanced Factory Program command can be used to program one or more

pages of four adjacent words in parallel. The four words must differ only for the addresses

A0 and A1.

VPP must be set to VPPH during the Quadruple Enhanced Factory Program, otherwise the

command will be ignored and the Status Register will not output any error.

Dual operations are not supported during Quadruple Enhanced Factory Program operations

and the command cannot be suspended.

If the block is protected then the Quadruple Enhanced Factory Program operation will abort,

the data in the block will not be changed and the Status Register will output the error.

The Quadruple Enhanced Factory Program command has four phases: the Setup Phase,

the Load Phase where the data is loaded into the buffer, the combined Program and Verify

Phase where the loaded data is programmed to the memory and then automatically

checked and reprogrammed if necessary and the Exit Phase. Unlike the Enhanced Factory

Program it is not necessary to resubmit the data for the Verify Phase. The Load Phase and

the Program and Verify Phase can be repeated to program any number of pages within the

block.

6.10

Setup Phase

The Quadruple Enhanced Factory Program command requires one Bus Write operation to

initiate the load phase. After the setup command is issued, read operations output the

Status Register data. The Read Status Register command must not be issued as it will be

interpreted as data to program.

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