M58LW064C datasheet(52/61 Pages) STMICROELECTRONICS

Part #	M58LW064C

Description	64 Mbit (4Mb x16, Uniform Block, Burst) 3V Supply Flash Memory

PDF	61 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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M58LW064C

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Figure 25. Erase Flowchart and Pseudo Code

Note: 1. If an error is found, the Status Register must be cleared (Clear Status Register Command) before further Program or Erase oper-

ations.

Write 20h

AI00613B

Start

Write D0h to

Block Address

Read Status

YES

b7 = 1

YES

b3 = 0

b4, b5 = 0

VPP Invalid

Error (1)

Command

Sequence Error

Erase command:

– write 20h

– write D0h to Block Address

(A12-A17)

(memory enters read Status

do:

– read status register

– if Program/Erase Suspend command

given execute suspend erase loop

while b7 = 1

If b3 = 1, VPP invalid error:

– error handler

If b4, b5 = 1, Command Sequence error:

– error handler

YES

b5 = 0

Erase

Error (1)

YES

Suspend

Loop

If b5 = 1, Erase error:

– error handler

YES

End

YES

b1 = 0

Erase to Protected

Block Error

If b1 = 1, Erase to Protected Block Error:

– error handler

M58LW064C Datasheet(PDF) 52 Page - STMicroelectronics

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