M58WR064F-ZBE View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M58WR064F-ZBE

64 Mbit (4Mb x16, Multiple Bank, Burst) 1.8V Supply Flash Memory

STMicroelectronics 

M58WR064FT, M58WR064FB

APPENDIX C. FLOWCHARTS AND PSEUDO CODES

Figure 22. Program Flowchart and Pseudo Code

Start

Write 40h or 10h (3)

Write Address

& Data

Read Status

Register (3)

NO

SR7 = 1

YES

NO

SR3 = 0

YES

NO

SR4 = 0

YES

NO

SR1 = 0

YES

End

VPP Invalid

Error (1, 2)

Program

Error (1, 2)

Program to Protected

Block Error (1, 2)

program_command (addressToProgram, dataToProgram) {:

"

writeToFlash (addressToProgram, 0x40);

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

/*see note (3)*/

"

writeToFlash (addressToProgram, dataToProgram) ;

/*Memory enters read status state after

the Program Command*/

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 ( ) ;

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

error_handler ( ) ;

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

error_handler ( ) ;

}

AI06170b

Note: 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.

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