A29L320 AMICC [AMIC Technology], A29L320 Datasheet - Page 21

• Manufacturer Part Number: A29L320
• Description: 4M X 8 Bit / 2M X 16 Bit CMOS 3.3 Volt-only, Boot Sector Flash Memory
• Manufacturer: AMICC [AMIC Technology]

Legend:
X = Don't care
RA = Address of the memory location to be read.
RD = Data read from location RA during read operation.
PA = Address of the memory location to be programmed. Addresses latch on the falling edge of the
PD = Data to be programmed at location PA. Data latches on the rising edge of
SA = Address of the sector to be verified (in autoselect mode) or erased. Address bits A20- A12 select a unique sector.
Note:
1. See Table 1 for description of bus operations.
2. All values are in hexadecimal.
3. Except when reading array or autoselect data, all bus cycles are write operation.
4. Address bits A20 - A11 are don't cares for unlock and command cycles, unless SA or PA required.
5. No unlock or command cycles required when reading array data.
6. The Reset command is required to return to reading array data when device is in the autoselect mode, or if I/O
7. The fourth cycle of the autoselect command sequence is a read cycle.
8. The data is 00h for an unprotected sector and 01h for a protected sector. See "Autoselect Command Sequence" for more
9. The data is 00h for an unprotected sector and 01h for a protected sector. See “Autoselect Command Sequence” for more
10. Command is valid when device is ready to read array data or when device is in autoselect mode.
11. The Unlock Bypass command is required prior to the Unlock Bypass Program command.
12. The Unlock Bypass Reset command is required to return to reading array data when the device is in the unlock bypass
13. The system may read and program in non-erasing sectors, or enter the autoselect mode, when in the Erase Suspend mode.
14. The Erase Resume command is valid only during the Erase Suspend mode.
PRELIMINARY
Read (Note 6)
Reset (Note 7)
CFI Query (Note 10)
Program
Unlock Bypass
Unlock Bypass Program (Note
11)
Unlock Bypass Reset (Note 12)
Chip Erase
Sector Erase
Erase Suspend (Note 13)
Erase Resume (Note 14)
Continuation ID
Sector Protect Verify
Device ID,
Top Boot Block
Device ID,
Bottom Boot Block
(Note 9)
(while the device is providing status data).
information.
information.
mode.
Manufacturer ID
whichever happens later.
Command
Sequence
(Note 1)
(September, 2005, Version 0.0)
Word
Byte
Word
Byte
Word
Word
Word
Word
Word
Word
Word
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
4
4
4
4
4
1
4
3
6
6
1
1
1
1
2
2
555
AAA
Addr Data
XXX
XXX
XXX
55
AA
555
AAA
555
AAA
555
AAA
555
AAA
555
AAA
555
AAA
555
AAA
555
AAA
RA
XXX A0
XXX 90
Table 9. A29L320 Command Definitions
First
AA
AA
AA
AA
AA
RD
98
AA
AA
AA
F0
B0
30
AA
2AA
555
Addr Data
XXX
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
PA
Second
55
55
55
55
55
55
55
55
PD
00
55
20
555
AAA
Bus Cycles (Notes 2 - 5)
Addr Data Addr Data Addr Data
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
555
555
555
555
555
555
555
555
Third
90
90
90
90
90
WE
A0
20
80
80
or
(SA)
(SA)
X00
X03
X06
X04
X01 22F4
X02 XX01
PA
555
AAA
555
AAA
X02
X01 22F9
X02
CE
Fourth
pulse, whichever happens first.
XX00
PD
AA
AA
37
F4
F9
00
01
7F
AMIC Technology, Corp.
2AA
555
2AA
555
Fifth
A29L320 Series
55
55
WE
Addr
SA
555
AAA
or
Sixth
5
CE
goes high
Data
10
30
pulse,