S29GL032M10TAIR10 AMD (ADVANCED MICRO DEVICES), S29GL032M10TAIR10 Datasheet - Page 63

• Manufacturer Part Number: S29GL032M10TAIR10
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of S29GL032M10TAIR10

• Lead Free Status / Rohs Status: Not Compliant

Autoselect Command Sequence
Enter/Exit Secured Silicon Sector Command Sequence
February 7, 2007 S29GL-M_00_B8
The autoselect command sequence allows the host system to read several identifier codes at spe-
cific addresses:
Note: 3.The device ID is read over three cycles. SA = Sector Address
The autoselect command sequence is initiated by first writing two unlock cycles. This is followed
by a third write cycle that contains the autoselect command. The device then enters the autose-
lect mode. The system may read at any address any number of times without initiating another
autoselect command sequence:
The system must write the reset command to return to the read mode (or erase-suspend-read
mode if the device was previously in Erase Suspend).
The Secured Silicon Sector region provides a secured data area containing an 8-word/16-byte
random Electronic Serial Number (ESN). The system can access the Secured Silicon Sector region
by issuing the three-cycle Enter Secured Silicon Sector command sequence. The device continues
to access the Secured Silicon Sector region until the system issues the four-cycle Exit Secured
Silicon Sector command sequence. The Exit Secured Silicon Sector command sequence returns
the device to normal operation.
for both command sequences. Also, see
information. Note that the ACC function and unlock bypass modes are not available when the Se-
cured Silicon Sector is enabled.
Word Program Command Sequence
Programming is a four-bus-cycle operation. The program command sequence is initiated by writ-
ing two unlock write cycles, followed by the program set-up command. The program address and
data are written next, which in turn initiate the Embedded Program algorithm. The system is not
required to provide further controls or timings. The device automatically provides internally gen-
erated program pulses and verifies the programmed cell margin.
address and data requirements for the word program command sequence, respectively.
When the Embedded Program algorithm is complete, the device then returns to the read mode
and addresses are no longer latched. The system can determine the status of the program oper-
ation by using DQ7 or DQ6. See
commands written to the device during the Embedded Program Algorithm are ignored. Note that
the Secured Silicon Sector, autoselect, and CFI functions are unavailable when a program oper-
ation is in progress. Note that a hardware reset immediately terminates the program operation.
The program command sequence should be reinitiated once the device returns to the read mode,
to ensure data integrity.
Programming is allowed in any sequence of address locations and across sector boundaries. Pro-
gramming to the same word address multiple times without intervening erases (incremental bit
programming) requires a modified programming method. For such application requirements,
please contact your local Spansion representative. Word programming is supported for backward
compatibility with existing Flash driver software and for occasional writing of individual words. Use
of write buffer programming (see below) is strongly recommended for general programming use
when more than a few words are to be programmed. The effective word programming time using
write buffer programming is approximately four times shorter than the single word programming
time.
Secured Silicon Sector Factory Protect
Sector Protect Verify
Device ID, Cycle 1
Device ID, Cycle 2
Device ID, Cycle 3
Manufacturer ID
Identifier Code
D a t a
S29GL-M MirrorBit
S h e e t
Table 34
Write Operation Status
Secured Silicon Sector Flash Memory Region
and
TM
Flash Family
Table 35
show the address and data requirements
for information on these status bits. Any
(SA)02h
A7:A0
(x16)
00h
01h
0Eh
03h
0Fh
Table 34
and
Table 35
(SA)04h
A6:A-1
(x8)
1Ch
00h
02h
1Eh
06h
for further
show the
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