PC28F128P33BF60A Datasheet, PDF (74/88 Pages) Numonyx B.V – Numonyx® P33-65nm Flash Memory

Figure 31: Erase Suspend/Resume Flowchart
P33-65nm
ERASE SUSPEND / RESUME PROCEDURE
Start
Write 0x70, _{(Read Status)}
Any device Address
Write 0xB0,
Any device
address
(Erase Suspend)
Read Status
Register
SR[7] =
0
1
SR[6] =
0
1
Erase
Completed
Read
Read Array
Data
Read or
Program ?
No
Program
Program
Loop
Bus
Operation
Command
Comments
Write
Read Data = 0x70
Status Addr = Any device address
Write
Erase Data = 0xB0
Suspend Addr = Any device address
Read
None
Status Register data .
Addr = Any device address
Check SR[7]:
Idle
None 1 = WSM ready
0 = WSM busy
Check SR[6]:
Idle
None 1 = Erase suspended
0 = Erase completed
Write
Data = 0xFF or 0x40
Read Array
or Program
Addr = Any address within the
suspended device
Read or
Write
None
Read array or program data from /to
block other than the one being erased
Write
Erase Data = 0xD0
Resume Addr = Any device address
Done
Yes
Write 0xD0,
(Erase Resume) _{Any Address}
If the suspended partition was placed in
Read Array mode or a Program Loop :
Write
Read Return device to Status mode :
Status Data = 0x70
Register Addr = Any device Address
Erase
Resumed ⁽¹⁾
(Read Status)
Write 0x70,
Any device
Address
Write 0xFF,
Any device
Address
Read Array
Data
(Read Array)
Note :
1. The tERS/SUSP timing between the initial block erase or erase
resume command and a subsequent erase suspend command
should be followed .
Datasheet
74
Jul 2011
Order Number: 208034-04