RD28F3208C3B90 Intel, RD28F3208C3B90 Datasheet - Page 48
RD28F3208C3B90
Manufacturer Part Number
RD28F3208C3B90
Description
Manufacturer
Intel
Datasheet
1.RD28F3208C3B90.pdf
(75 pages)
Specifications of RD28F3208C3B90
Operating Supply Voltage (max)
3.3V
Operating Temperature (max)
85C
Mounting
Surface Mount
Lead Free Status / RoHS Status
Not Compliant
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C3 SCSP Flash Memory
Figure 17.
26 Aug 2005
48
FULL STATUS CHECK PROCEDURE
Block Erase Complete
Read Status Register
Read Status Register
Data (See Above)
Check if Desired
Write D0H and
Block Address
Block Erase
Successful
Full Status
Write 20H
SR.4,5 =
SR.7 =
SR.3 =
SR.5 =
SR.1 =
Start
Automated Block Erase Flowchart
0645_14
0
0
0
0
1
Intel
0
1
1
1
1
®
Locked Block - Aborted
Command Sequence
Advanced+ Boot Block Flash Memory (C3) SCSP Family
Suspend Erase
No
Attempted Erase of
Block Erase Error
V
PP
Range Error
Error
Order Number: 252636, Revision: 004
Erase Loop
Suspend
Yes
Repeat for subsequent block erasures.
Full Status Check can be done after each block erase or after a sequence of
block erasures.
Write FFH after the last write operation to reset device to read array mode.
SR. 1 and 3 MUST be cleared, if set during an erase attempt, before further
attempts are allowed by the Write State Machine.
SR.1, 3, 4, 5 are only cleared by the Clear Staus Register Command, in cases
where multiple bytes are erased before full status is checked.
If an error is detected, clear the status register before attempting retry or other
error recovery.
Bus Operation
Bus Operation
Standby
Standby
Standby
Standby
Standby
Write
Write
Read
Erase Confirm
Erase Setup
Command
Command
Data = 20H
Addr = Within Block to Be
Erased
Data = D0H
Addr = Within Block to Be
Erased
Status Register Data Toggle
CE# or OE# to Update Status
Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
Check SR.3
1 = V
Check SR.4,5
Both 1 = Command Sequence
Error
Check SR.5
1 = Block Erase Error
Check SR.1
1 = Attempted Erase of
Locked Block - Erase Aborted
PP
Low Detect
Comments
Comments
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