AM29DL800BB120ECB Ver la hoja de datos (PDF) - Advanced Micro Devices
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AM29DL800BB120ECB
Advanced Micro Devices
AM29DL800BB120ECB Datasheet PDF : 43 Pages
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PRELIMINARY
Table 5. Am29DL800B Command Definitions
Command
Sequence
(Note 1)
Read (Note 6)
Reset (Note 7)
Manufacturer ID
Device ID,
Top Boot Block
Device ID,
Bottom Boot Block
1
1
Word
4
Byte
Word
4
Byte
Word
4
Byte
Sector Protect
Verify (Note 9)
Word
4
Byte
Program
Word
4
Byte
Unlock Bypass
Word
3
Byte
Unlock Bypass Program (Note 10) 2
Unlock Bypass Reset (Note 11) 2
Chip Erase
Word
6
Byte
Sector Erase
Word
6
Byte
Erase Suspend (Note 12)
1
Erase Resume (Note 13)
1
Bus Cycles (Notes 2–5)
First
Second
Third
Fourth
Addr Data Addr Data Addr Data Addr Data
RA RD
XXX F0
555
2AA
(BA)555
AA
55
90 (BA)X00 01
AAA
555
(BA)AAA
555
2AA
(BA)555
(BA)X01 224A
AA
55
90
AAA
555
(BA)AAA
(BA)X02 4A
555
2AA
(BA)555
(BA)X01 22CB
AA
55
90
AAA
555
(BA)AAA
(BA)X02 CB
555
2AA
(BA)555
AA
55
90
AAA
555
(BA)AAA
(SA)
X02
(SA)
X04
XX00
XX01
00
01
555
2AA
555
AA
55
A0 PA
PD
AAA
555
AAA
555
2AA
555
AA
55
20
AAA
555
AAA
XXX A0 PA PD
BA 90 XXX 00
555
2AA
555
555
AA
55
80
AA
AAA
555
AAA
AAA
555
2AA
555
555
AA
55
80
AA
AAA
555
AAA
AAA
BA B0
BA 30
Fifth
Addr Data
2AA
55
555
2AA
55
555
Sixth
Addr Data
555
10
AAA
SA 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 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 A18–A12 uniquely select any sector.
BA = Address of the bank that is being switched to autoselect
mode, is in bypass mode, or is being erased. Address bits A18–
A16 select a bank.
Notes:
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 operations.
4. Data bits DQ15–DQ8 are don’t cares for unlock and command
cycles.
5. Address bits A18–A11 are don’t cares for unlock and
command cycles, unless bank address (BA) is required.
6. No unlock or command cycles required when bank is in read
mode.
7. The Reset command is required to return to reading array
data (or to the erase-suspend-read mode if previously in
Erase Suspend) when a bank is in the autoselect mode, or if
DQ5 is goes high (while the bank is providing status
information).
8. The fourth cycle of the autoselect command sequence is a
read cycle. The system must provide the bank address to
obtain the manufacturer or device ID information.
9. The data is 00h for an unprotected sector and 01h for a
protected sector. See the Autoselect Command Sequence
section for more information.
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 bank 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.
The Erase Suspend command is valid only during a sector
erase operation, and requires the bank address.
13. The Erase Resume command is valid only during the Erase
Suspend mode, and requires the bank address.
Am29DL800B
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