AS29CF160T-55TIN
AS29CF160B-55TIN
Table 9. AS29CF160T/B-55TIN Command Definitions
Bus Cycles (Notes 2 - 4)
Third Fourth
Addr Data Addr Data Addr Data
Command
Sequence
(Note 1)
First
Second
Fifth
Sixth
Addr Data
Addr Data Addr Data
Read (Notes 5, 6)
Reset (Note 6)
1
1
RA
XXX
555
AAA
555
AAA
555
AAA
555
RD
F0
Word
Byte
Word
Byte
Word
Byte
Word
Byte
2AA
555
2AA
555
2AA
555
2AA
555
555
AAA
555
AAA
555
AAA
555
Manufacturer ID
4
4
4
4
AA
AA
AA
AA
55
55
55
55
90 X00
X01 22D2
X02 D2
X01 22D8
01
Device ID,
Top Boot Block
Device ID,
Bottom Boot Block
90
90
90
X02
X03
X06
D8
Continuation ID
7F
AAA
AAA
XX00
XX01
00
(SA)
X02
Word
555
2AA
555
555
Sector Protect Verify
(Note 8)
AA
55
90
4
(SA)
X04
Byte
AAA
AAA
01
Word
Byte
Word
Byte
Word
Byte
55
AA
555
AAA
555
AAA
CFI Query (Note 9)
Program
1
4
3
98
AA
AA
2AA
555
2AA
555
555
AAA
555
55
55
A0
20
PA
PD
Unlock Bypass
AAA
Unlock Bypass Program
(Note 10)
Unlock Bypass Reset (Note 11)
2
2
6
XXX
A0
90
PA
PD
00
55
XXX
555
AAA
555
AAA
XXX
XXX
XXX
2AA
555
2AA
555
Word
555
AAA
555
555
AAA
555
2AA
555
2AA
555
555
10
80
80
AA
AA
55
55
Chip Erase
AA
Byte
Word
Byte
AAA
55
SA
30
Sector Erase
6
AA
AAA
AAA
Erase Suspend (Note 12)
Erase Resume (Note 13)
1
1
B0
30
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
whichever happens later.
or
pulse,
WE
CE
PD = Data to be programmed at location PA. Data latches on the rising edge of
or
pulse, whichever happens first.
CE
WE
SA = Address of the sector to be verified (in autoselect mode) or erased. Address bits A19 - 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 A19 - 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/O5 goes high
(while the device is providing status data).
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
information.
9. Command is valid when device is ready to read array data or when device is in autoselect mode.
10. The Unlock Bypass command is required prior to the Unlock Bypass Program command.
11. The Unlock Bypass Reset command is required to return to reading array data when the device is in the Unlock Bypass
mode.
12. The system may read and program in non-erasing sectors, or enter the autoselect mode, when in the Erase Suspend mode.
13. The Erase Resume command is valid only during the Erase Suspend mode.
Confidential
- 18 of 41 -
Rev.1.0 July 2019
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
