AM29LV128MH_07 Datasheet, PDF (37/66 Pages) Advanced Micro Devices – 128 Megabit (8 M x 16-Bit/16 M x 8-Bit) MirrorBit™ 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/O™ Control

DATA SHEET
Command Definitions
Table 10. Command Definitions (x16 Mode, BYTE# = V_IH)
Command
Sequence
(Note 1)
First
Addr Data
Read (Note 6)
1 RA RD
Reset (Note 7)
1 XXX F0
Manufacturer ID
4 555 AA
Device ID (Note 9)
4 555 AA
Secured Silicon Sector Factory
Protect (Note 10)
4
555
AA
Second
Addr Data
2AA 55
2AA 55
2AA 55
Bus Cycles (Notes 2–5)
Third
Fourth
Addr Data Addr
Data
555 90 X00
555 90 X01
0001
227E
555 90 X03 (Note 10)
Sector Group Protect Verify
(Note 12)
4 555 AA 2AA 55 555 90 (SA)X02 00/01
Enter Secured Silicon Sector Region 3 555 AA 2AA 55 555 88
Exit Secured Silicon Sector Region 4 555 AA 2AA 55 555 90 XXX
00
Program
4 555 AA 2AA 55 555 A0
PA
PD
Write to Buffer (Note 11)
3 555 AA 2AA 55 SA
25
SA
WC
Program Buffer to Flash
1 SA 29
Write to Buffer Abort Reset (Note 13) 3 555 AA 2AA 55 555 F0
Unlock Bypass
3 555 AA 2AA 55 555 20
Unlock Bypass Program (Note 14) 2 XXX A0 PA PD
Unlock Bypass Reset (Note 15)
2 XXX 90 XXX 00
Chip Erase
6 555 AA 2AA 55 555 80
555
AA
Sector Erase
6 555 AA 2AA 55 555 80
555
AA
Program/Erase Suspend (Note 16) 1 XXX B0
Program/Erase Resume (Note 17) 1 XXX 30
CFI Query (Note 18)
1 55 98
Fifth
Addr Data
X0E 2212
PA PD
2AA 55
2AA 55
Sixth
Addr Data
X0F 2200
WBL PD
555 10
SA 30
Legend:
X = Don’t care
RA = Read Address of the memory location to be read.
RD = Read Data read from location RA during read operation.
PA = Program Address. Addresses latch on the falling edge of the WE#
or CE# pulse, whichever happens later.
PD = Program Data for location PA. Data latches on the rising edge of
WE# or CE# pulse, whichever happens first.
SA = Sector Address of sector to be verified (in autoselect mode) or
erased. Address bits A22–A15 uniquely select any sector.
WBL = Write Buffer Location. Address must be within the same write
buffer page as PA.
WC = Word Count. Number of write buffer locations to load minus 1.
Notes:
1. See Table 1 for description of bus operations.
2. All values are in hexadecimal.
3. Except for the read cycle and the fourth cycle of the autoselect
command sequence, all bus cycles are write cycles.
4. Data bits DQ15–DQ8 are don’t care in command sequences,
except for RD, PD, and WC.
5. Unless otherwise noted, address bits A22–A11 are don’t cares.
6. No unlock or command cycles required when device is in read
mode.
7. The Reset command is required to return to the read mode (or to
the erase-suspend-read mode if previously in Erase Suspend)
when the device is in the autoselect mode, or if DQ5 goes high
while the device is providing status information.
8. The fourth cycle of the autoselect command sequence is a read
cycle. Data bits DQ15–DQ8 are don’t care. See the Autoselect
Command Sequence section for more information.
9. The device ID must be read in three cycles.
10. If WP# protects the highest address sector, the data is 98h for
factory locked and 18h for not factory locked. If WP# protects the
lowest address sector, the data is 88h for factory locked and 08h
for not factor locked.
11. The total number of cycles in the command sequence is
determined by the number of words written to the write buffer. The
maximum number of cycles in the command sequence is 21.
12. The data is 00h for an unprotected sector and 01h for a protected
sector.
13. Command sequence resets device for next command after
aborted write-to-buffer operation.
14. The Unlock Bypass command is required prior to the Unlock
Bypass Program command.
15. The Unlock Bypass Reset command is required to return to the
read mode when the device is in the unlock bypass mode.
16. The system may read and program in non-erasing sectors, or
enter the autoselect mode, when in the Erase Suspend mode.
The Erase Suspend command is valid only during a sector erase
operation.
17. The Erase Resume command is valid only during the Erase
Suspend mode.
18. Command is valid when device is ready to read array data or when
device is in autoselect mode.
January 31, 2007 25270C7
Am29LV128MH/L
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