M58LR128KB datasheet(95/110 Pages) NUMONYX

Teilenummer	M58LR128KB

Bauteilbeschribung	128 or 256 Mbit (횞16, multiple bank, multilevel interface, burst) 1.8 V supply Flash memories

PDF	110 Pages

Scroll/Zoom	100%

Hersteller	NUMONYX [Numonyx B.V]

Direct Link	http://www.numonyx.com

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95 / 110 page

M58LR128KT, M58LR128KB, M58LR256KT, M58LR256KB

Flowcharts and pseudocodes

95/111

Figure 22.

Block erase flowchart and pseudocode

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

Any address within the bank can equally be used.

Write 20h (2)

AI10976

Start

Write Block

Address & D0h

Read Status

YES

SR7 = 1

YES

SR3 = 0

YES

SR4, SR5 = 1

VPP Invalid

Error (1)

Command

Sequence Error (1)

SR5 = 0

Erase Error (1)

End

YES

SR1 = 0

Erase to Protected

Block Error (1)

YES

erase_command ( blockToErase ) {

writeToFlash (blockToErase, 0x20) ;

/*see note (2) */

writeToFlash (blockToErase, 0xD0) ;

/* Memory enters read status state after

the Erase Command */

} while (status_register.SR7== 0) ;

do {

status_register=readFlash (blockToErase) ;

/* see note (2) */

/* E or G must be toggled*/

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

error_handler ( ) ;

if ( (status_register.SR4==1) && (status_register.SR5==1) )

/* command sequence error */

error_handler ( ) ;

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

error_handler ( ) ;

if ( (status_register.SR5==1) )

/* erase error */

error_handler ( ) ;

}

M58LR128KB Datenblatt(PDF) 95 Page - Numonyx B.V

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