M58WR016QT datasheet(93/110 Pages) NUMONYX

Part #	M58WR016QT

Description	16 Mbit and 32 Mbit (x16, Multiple Bank, Burst) 1.8V supply Flash memories

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Manufacturer	NUMONYX [Numonyx B.V]

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93 / 110 page

M58WR016QT, M58WR016QB, M58WR032QT, M58WR032QB

Flowcharts and pseudo codes

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Appendix C

Flowcharts and pseudo codes

Figure 20.

Program flowchart and pseudo code

1.

Status check of SR1 (Protected Block), SR3 (VPP Invalid) and SR4 (Program Error) can be made after each program

operation or after a sequence.

2.

If an error is found, the Status Register must be cleared before further Program/Erase Controller operations.

3.

Any address within the bank can equally be used.

Write 40h or 10h (3)

AI06170b

Start

Write Address

& Data

Read Status

Register (3)

YES

NO

SR7 = 1

YES

NO

SR3 = 0

NO

SR4 = 0

VPP Invalid

Error (1, 2)

Program

Error (1, 2)

program_command (addressToProgram, dataToProgram) {:

"

writeToFlash (addressToProgram, 0x40);

/*writeToFlash (addressToProgram, 0x10);*/

/*see note (3)*/

"

do {

status_register=readFlash (addressToProgram);

"see note (3)";

/* E or G must be toggled*/

} while (status_register.SR7== 0) ;

if (status_register.SR3==1) /*VPP invalid error */

error_handler ( ) ;

YES

End

YES

NO

SR1 = 0

Program to Protected

Block Error (1, 2)

writeToFlash (addressToProgram, dataToProgram) ;

/*Memory enters read status state after

the Program Command*/

if (status_register.SR4==1) /*program error */

error_handler ( ) ;

if (status_register.SR1==1) /*program to protect block error */

error_handler ( ) ;

}

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M58WR016QT Datasheet(PDF) 93 Page - Numonyx B.V

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