128Mb, 256Mb, 512Mb, 1Gb StrataFlash Memory
Flowcharts
Figure 43: Block Erase Procedure
Start
Write 0x20,
block address
(Block erase)
Write 0xD0,
block address
(Erase confirm)
Read status
register
Suspend erase
loop
No
0
Yes
Suspend
erase?
SR7 =
1
Full erase status
check (if desired)
Block erase
complete
Bus
Operation
Command Comments
WRITE
WRITE
BLOCK ERASE Data = 0x20
SETUP
Address = Block to be erased
ERASE CON- Data = 0xD0
FIRM
None
None
Address = Block to be erased
READ
Idle
Status register data
Check SR7
1 = Write state machine ready
0 = Write state machine busy
1. Repeat for subsequent block erasures.
Notes:
2. Full status register check can be done after each block erase or after a sequence of block
erasures.
3. Write 0xFF after the last operation to enter read array mode.
PDF: 09005aef8448483a
128_256_512_65nm_g18.pdf - Rev. F 8/11 EN
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