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AM42DL16X4D 데이터시트(HTML) 29 Page - SPANSION

부품명 AM42DL16X4D
상세내용  Stacked Multi-Chip Package (MCP) Flash Memory and SRAM
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28
Am42DL16x4D
January 9, 2002
P R E L IMINARY
Table 14.
Command Definitions (Flash Word Mode)
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#f pulse, whichever happens
later.
PD = Data to be programmed at location PA. Data latches on the rising
edge of WE# or CE#f pulse, whichever happens first.
SADD = Address of the sector to be verified (in autoselect mode) or
erased. Address bits A19–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.
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 and PD.
5.
Unless otherwise noted, address bits A19–A11 are don’t cares.
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 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 ID, device ID, or SecSi Sector factory protect
information. See the Autoselect Command Sequence section for
more information.
9.
The data is 80h for factory locked and 00h for not factory locked.
10. The data is 00h for an unprotected sector/sector block and 01h
for a protected sector/sector block.
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 bank 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, and requires the bank address.
14. The Erase Resume command is valid only during the Erase
Suspend mode, and requires the bank address.
15. Command is valid when device is ready to read array data or when
device is in autoselect mode.
Table 15.
Autoselect Device IDs (Word Mode)
T = Top Boot Sector, B = Bottom Boot Sector
Command
Sequence
(Note 1)
Bus Cycles (Notes 2–5)
First
Second
Third
Fourth
Fifth
Sixth
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Read (Note 6)
1
RA
RD
Reset (Note 7)
1
XXX
F0
Manufacturer ID
4
555
AA
2AA
55
(BA)555
90
(BA)X00
0001
Device ID
4
555
AA
2AA
55
(BA)555
90
(BA)X01 see Table 15
SecSi Sector Factory
Protect (Note 9)
4
555
AA
2AA
55
(BA)555
90
(BA)X03
0081/0001
Sector Protect Verify
(Note 10)
4
555
AA
2AA
55
(BA)555
90
(SA)X02
0000/0001
Enter SecSi Sector Region
3
555
AA
2AA
55
555
88
Exit SecSi Sector Region
4
555
AA
2AA
55
555
90
XXX
00
Program
4
555
AA
2AA
55
555
A0
PA
PD
Unlock Bypass
3
555
AA
2AA
55
555
20
Unlock Bypass Program
(Note 11)
2
XXX
A0
PA
PD
Unlock Bypass Reset (Note 12)
2
BA
90
XXX
00
Chip Erase
6
555
AA
2AA
55
555
80
555
AA
2AA
55
555
10
Sector Erase
6
555
AA
2AA
55
555
80
555
AA
2AA
55
SADD
30
Erase Suspend (Note 13)
1
BA
B0
Erase Resume (Note 14)
1
BA
30
CFI Query (Note 15)
1
55
98
Device
Autoselect Device ID
Am29DL161D
2236h (T), 2239h (B)
Am29DL162D
222Dh (T), 222Eh (B)
Am29DL163D
2228h (T), 222Bh (B)
Am29DL164D
2233h (T), 2235h (B)


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