RD28F1602C3T90 Intel, RD28F1602C3T90 Datasheet - Page 51
RD28F1602C3T90
Manufacturer Part Number
RD28F1602C3T90
Description
Manufacturer
Intel
Datasheet
1.RD28F1602C3T90.pdf
(75 pages)
Specifications of RD28F1602C3T90
Operating Supply Voltage (max)
3.3V
Operating Temperature (max)
85C
Mounting
Surface Mount
Lead Free Status / RoHS Status
Not Compliant
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Figure 20.
Datasheet
FULL STATUS CHECK PROCEDURE
Write Protect. Register
Read Status Register
Read Status Register
Program Successful
Program Complete
Data (See Above)
Check if Desired
(Protection Reg.
Program Setup)
Address/Data
SR.3, SR.4 =
SR.1, SR.4 =
SR.1, SR.4 =
Write C0H
Full Status
SR.7 = 1?
Start
Protection Register Programming Flowchart
0645_17
Yes
C3 SCSP Flash Memory
Intel
1, 1
0,1
1,1
®
No
Advanced+ Boot Block Flash Memory (C3) SCSP Family
Attempted Program to
Protection Register
Programming Error
Locked Register -
V
PP
Order Number: 252636, Revision: 004
Range Error
Aborted
Protection Program operations can only be addressed within the protection
register address space. Addresses outside the defined space will return an
error.
Repeat for subsequent programming operations.
SR Full Status Check can be done after each program or after a sequence of
program operations.
Write FFH after the last program operation to reset device to read array mode.
SR.3 MUST be cleared, if set during a program attempt, before further
attempts are allowed by the Write State Machine.
SR.1, SR.3 and SR.4 are only cleared by the Clear Staus Register Command,
in cases of multiple protection register program operations 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
Write
Write
Read
Protection Program
Protection Program
Command
Command
Setup
Data = C0H
Data = Data to Program
Addr = Location to Program
Status Register Data Toggle
CE# or OE# to Update Status
Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
SR.1 SR.3 SR.4
0
0
1
1
0
0
Comments
Comments
1
1
1
V
Prot. Reg.
Prog. Error
Register
Locked:
Aborted
26 Aug 2005
PP
Low
51
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