M58LW032 datasheet(56/61 Pages) STMICROELECTRONICS

Part #	M58LW032

Description	32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory

PDF	61 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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M58LW032A

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Figure 29. Protection Register Program Flowchart and Pseudo Code

Note: PR = Protection Register

Write

PR Address, PR Data

AI06159b

YES

b7 = 1

Start

Write C0h

Write FFh

Read Status Register

(toggle G or E )

PR Program

Sucessful

b4 = 1

VPP Invalid Error

Protection Register

Program Error

Protection Register

Protection Error

YES

Protection Register Program Command

– write C0h

– write Protection Register Address,

Protection Register Data

do:

– read status register (toggle G or E,

do not use the Read Status Register command)

while b7 = 1

Read Memory Array Command:

– write FFh

If b4 = 1 Protection Register

Program Error

b3 = 1

If b3 = 1 VPP Invalid Error

b1 = 1

If b1 = 1 Program Error due to

Protection Register Protection

Write FFh

Read Memory Array Command

– write FFh

End

M58LW032 Datasheet(PDF) 56 Page - STMicroelectronics

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