M36W832BE-ZAT 查看數據表（PDF） - STMicroelectronics

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M36W832BE-ZAT

32 Mbit (2Mb x16, Boot Block) Flash Memory and 8 Mbit (512Kb x16) SRAM, Multiple Memory Product

STMicroelectronics 

M36W832TE, M36W832BE

APPENDIX C. FLASH MEMORY FLOWCHARTS AND PSEUDO CODES

Figure 26. Program Flowchart and Pseudo Code

Start

Write 40h or 10h

Write Address

& Data

Read Status

Register

program_command (addressToProgram, dataToProgram) {:

writeToFlash (any_address, 0x40) ;

/*or writeToFlash (any_address, 0x10) ; */

writeToFlash (addressToProgram, dataToProgram) ;

/*Memory enters read status state after

the Program Command*/

do {

status_register=readFlash (any_address) ;

/* EF or GF must be toggled*/

NO

b7 = 1

YES

NO

b3 = 0

YES

NO

b4 = 0

YES

NO

b1 = 0

YES

End

VPPF Invalid

Error (1, 2)

Program

Error (1, 2)

Program to Protected

Block Error (1, 2)

} while (status_register.b7== 0) ;

if (status_register.b3==1) /*VPPF invalid error */

error_handler ( ) ;

if (status_register.b4==1) /*program error */

error_handler ( ) ;

if (status_register.b1==1) /*program to protect block error */

error_handler ( ) ;

}

AI90174b

Note: 1. Status check of b1 (Protected Block), b3 (VPPF Invalid) and b4 (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.

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