DATA SHEET
Command Definitions
Command
Sequence
(Note 1)
Read (Note 6)
Reset (Note 7)
Manufacturer ID
Device ID,
Top Boot Block
Device ID,
Bottom Boot Block
Word
Byte
Word
Byte
Word
Byte
Sector Protect Verify
(Note 9)
Word
Byte
CFI Query (Note 10)
Word
Byte
Program
Word
Byte
Unlock Bypass
Word
Byte
Unlock Bypass Program (Note 11)
Unlock Bypass Reset (Note 12)
Chip Erase
Word
Byte
Sector Erase
Word
Byte
Erase Suspend (Note 13)
Erase Resume (Note 14)
Table 9. Am29F160D Command Definitions
First
Second
Addr Data Addr Data
1 RA RD
1 XXX F0
555
2AA
4
AA
55
AAA
555
555
2AA
4
AA
55
AAA
555
555
2AA
4
AA
55
AAA
555
555
2AA
4
AA
55
AAA
555
555
1
98
AAA
555
2AA
4
AA
55
AAA
555
555
2AA
3
AA
55
AAA
555
2 XXX A0 PA PD
2 XXX 90 XXX 00
555
2AA
6
AA
55
AAA
555
555
2AA
6
AA
55
AAA
555
1 XXX B0
1 XXX 30
Bus Cycles (Notes 2–5)
Third
Fourth
Addr Data Addr Data
Fifth
Sixth
Addr Data Addr Data
555
AAA
555
AAA
555
AAA
555
AAA
90 X00 01
X01 22D2
90
X02 D2
X01 22D8
90
X02 D8
(SA) XX00
X02 XX01
90
(SA) 00
X04 01
555
AAA
555
AAA
A0 PA PD
20
555
AAA
555
AAA
555
2AA
555
80
AA
55
10
AAA
555
AAA
555
2AA
80
AA
55 SA 30
AAA
555
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 WE# or CE# pulse, whichever
happens later.
PD = Data to be programmed at location PA. Data latches on the
rising edge of WE# or CE# pulse, whichever happens first.
SA = Address of the sector to be verified (in autoselect mode) or
erased. Address bits A19–A12 uniquely select any sector.
Notes:
1. See Table 1 on page 8 for description of bus operations.
2. All values are in hexadecimal.
3. Except when reading array or autoselect data, all bus cycles are
write operations.
4. Data bits DQ15–DQ8 are don’t cares for unlock and command
cycles.
5. Address bits A19–A11 are don’t cares for unlock and command
cycles, unless SA or PA required.
6. No unlock or command cycles required when reading array data.
7. The Reset command is required to return to reading array data
when device is in the autoselect mode, CFI query mode, or if
DQ5 goes high (while the device is providing status data).
8. The fourth cycle of the autoselect command sequence is a read
cycle.
9. The data is 00h for an unprotected sector and 01h for a protected
sector. See Autoselect Command Sequence‚ on page 19 for
more information.
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 mode.
13. 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.
14. The Erase Resume command is valid only during the
Erase Suspend mode.
22
Am29F160D
Am29F160D_00_D6 November 2, 2006