M58LT128HST datasheet(92/110 Pages) STMICROELECTRONICS

Part #	M58LT128HST

Description	128-Mbit (8 Mb 횞16, Multiple Bank, Multilevel interface, Burst) 1.8 V supply, Secure Flash memories

PDF	110 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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92 / 110 page

Flowcharts and pseudo codes

M58LT128HST, M58LT128HSB

92/110

Figure 20. Blank Check flowchart and pseudo code

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 & CBh

Read

Status Register (1)

SR4 = 1

SR5 = 1

SR5 = 0

YES

Command Sequence

Error (2)

YES

Blank Check Error (2)

End

blank_check_command (blockToCheck) {

writeToFlash (blockToCheck, 0xBC);

writeToFlash (blockToCheck, 0xCB);

/* 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.SR4==1) && (status_register.SR5==1)

/* command sequence error */

error_handler () ;

if (status_register.SR5==1)

/* Blank Check error */

error_handler () ;

}

ai10520c

M58LT128HST Datasheet(PDF) 92 Page - STMicroelectronics

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