M58MR032D datasheet(44/52 Pages) STMICROELECTRONICS

Part #	M58MR032D

Description	32 Mbit 2Mb x16, Mux I/O, Dual Bank, Burst 1.8V Supply Flash Memory

PDF	52 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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44 / 52 page

M58MR032C, M58MR032D

44/52

Figure 19. Block Erase Flowchart and Pseudo Code

Write 20h

Command

AI90037

Start

Write Block Address

& D0h Command

Read Status

YES

b7 = 1

YES

b3 = 0

b4, b5 = 0

VPP Invalid

Error (1)

Command

Sequence Error (1)

EE instruction:

– write 20h command

– write Block Address (A12-A20) &

command D0h

(memory enters read status state after

the EE instruction)

do:

– read status register (E or G must be

toggled) if PES instruction 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

End

YES

b1 = 0

Erase to Protected

Block Error (1)

If b1 = 1, Erase to protected block error:

– error handler

YES

M58MR032D Datasheet(PDF) 44 Page - STMicroelectronics

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