M58PR512LE datasheet(112/123 Pages) NUMONYX

Part #	M58PR512LE

Description	512-Mbit or 1-Gbit (횞 16, multiple bank, multilevel, burst) 1.8 V supply Flash memories

PDF	123 Pages

Scroll/Zoom	100%

Manufacturer	NUMONYX [Numonyx B.V]

Direct Link	http://www.numonyx.com

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112 / 123 page

Flowcharts and pseudocodes

M58PR512LE, M58PR001LE

112/123

Figure 30.

Blank check flowchart and pseudocode

Any address within the bank can equally be used.

If an error is found, the status register must be cleared before further program/erase operations.

Write Block

Address & BCh

Start

SR7 = 1

Write Block

Address & D0h

Read

Status Register (1)

SR1 = 0

SR3 = 0

SR4 = 1

SR5 = 1

SR5 = 0

YES

VPP Invalid

Error (2)

Command Sequence

Error (2)

YES

Erase Error (2)

Protected Block

Error (2)

End

blank_check_command (blockToCheck) {

writeToFlash (blockToCheck, 0xBC);

writeToFlash (blockToCheck, 0xD0);

/* Memory enters read status state after

the Blank Check Command */

do {

status_register = readFlash (blockToCheck);

/* see note (1) */

/* E or G must be toggled */

} while (status_register.SR7==0);

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.SR5==1)

/* erase error */

error_handler () ;

if (status_register.SR1==1)

/* protected block error */

error_handler () ;

}

ai10520

M58PR512LE Datasheet(PDF) 112 Page - Numonyx B.V

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