M58LW032A 데이터 시트보기 (PDF) - STMicroelectronics

부품명

상세내역

제조사

M58LW032A

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

STMicroelectronics 

M58LW032A

Figure 29. Protection Register Program Flowchart and Pseudo Code

Start

Write FFh

Write C0h

Write

PR Address, PR Data

Read Status Register

(toggle G or E )

b7 = 1

NO

YES

b3 = 1

YES

VPP Invalid Error

NO

b4 = 1

NO

YES

Protection Register

Program Error

b1 = 1

NO

YES

Protection Register

Protection Error

PR Program

Sucessful

Write FFh

End

Note: PR = Protection Register

Read Memory Array Command

– write FFh

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

If b3 = 1 VPP Invalid Error

If b4 = 1 Protection Register

Program Error

If b1 = 1 Program Error due to

Protection Register Protection

Read Memory Array Command:

– write FFh

AI06159b

56/61

Share Link: