M58WR032EB datasheet(70/81 Pages) STMICROELECTRONICS

部件名	M58WR032EB

功能描述	32 Mbit (2Mb x 16, Multiple Bank, Burst) 1.8V Supply Flash Memory

PDF	81 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

70 / 81 page

M58WR032ET, M58WR032EB

70/81

Figure 27. Locking Operations Flowchart and Pseudo Code

Note: 1. Any address within the bank can equally be used.

Write

01h, D0h or 2Fh

AI06176b

Read Block

Lock States

YES

Locking

change

confirmed?

Start

Write 60h (1)

locking_operation_command (address, lock_operation) {

writeToFlash (address, 0x60) ; /*configuration setup*/

/* see note (1) */

if (readFlash (address) ! = locking_state_expected)

error_handler () ;

/*Check the locking state (see Read Block Signature table )*/

writeToFlash (address, 0xFF) ; /*Reset to Read Array mode*/

/*see note (1) */

}

Write FFh (1)

Write 90h (1)

End

if (lock_operation==LOCK) /*to protect the block*/

writeToFlash (address, 0x01) ;

else if (lock_operation==UNLOCK) /*to unprotect the block*/

writeToFlash (address, 0xD0) ;

else if (lock_operation==LOCK-DOWN) /*to lock the block*/

writeToFlash (address, 0x2F) ;

writeToFlash (address, 0x90) ;

/*see note (1) */

M58WR032EB 数据表(PDF) 70 Page - STMicroelectronics

M58WR032EB 数据表(HTML) 70 Page - STMicroelectronics

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