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參數資料
| 型號： | AM29DL400BT-90EF |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | 4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memory |
| 中文描述： | 4兆位（512畝x 8-Bit/256畝x 16位），3.0伏的CMOS只，同時作業快閃記憶體 |
| 文件頁數： | 13/47頁 |
| 文件大小： | 795K |
| 代理商： | AM29DL400BT-90EF |
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Am29DL400B
11
Table 3.
Am29DL400BB Bottom Boot Sector Architecture
Note:
The address range is A17:A-1 if in byte mode (BYTE# = V
IL
). The address range is A17:A0 if in word mode (BYTE# =
V
IH
).
Autoselect Mode
The autoselect mode provides manufacturer and de-
vice identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This
mode is primarily intended for programming equip-
ment to automatically match a device to be
programmed with its corresponding programming al-
gorithm. However, the autoselect codes can also be
accessed in-system through the command register.
When using programming equipment, the autoselect
mode requires V
ID
(11.5 V to 12.5 V) on address pin
A9. Address pins A6, A1, and A0 must be as shown
in Table 4. In addition, when verifying sector protec-
tion, the sector address must appear on the
appropriate highest order address bits (see Tables 2
and 3). Table 4 shows the remaining address bits
that are don’t care. When all necessary bits have
been set as required, the programming equipment
may then read the corresponding identifier code on
DQ7-DQ0.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in Table 5. This method
does not require V
ID
. Refer to the Autoselect Com-
mand Sequence section for more information.
Bank
Sector
Sector Address
Sector Size
(Kbytes/Kwords)
(x8)
Address Range
(x16)
Address Range
Bank
Address
A15
A14
A13
A12
A17
A16
Bank 2
SA13
1
1
1
X
X
X
64/32
70000h–7FFFFh
38000h–3FFFFh
SA12
1
1
0
X
X
X
64/32
60000h–6FFFFh
30000h–37FFFh
SA11
1
0
1
X
X
X
64/32
50000h–5FFFFh
28000h–2FFFFh
SA10
1
0
0
X
X
X
64/32
40000h–4FFFFh
20000h–27FFFh
SA9
0
1
1
X
X
X
64/32
30000h–3FFFFh
18000h–1FFFFh
SA8
0
1
0
X
X
X
64/32
20000h–2FFFFh
10000h–17FFFh
Bank 1
SA7
0
0
1
1
1
X
16/8
1C000h–1FFFFh
0E000h–0FFFFh
SA6
0
0
1
1
0
X
32/16
14000h–1BFFFh
0A000h–0DFFFh
0
1
X
SA5
0
0
1
0
0
1
8/4
12000h–13FFFh
09000h–09FFFh
SA4
0
0
1
0
0
0
8/4
10000h–11FFFh
08000h–08FFFh
SA3
0
0
0
1
1
1
8/4
0E000h–0FFFFh
07000h–07FFFh
SA2
0
0
0
1
1
0
8/4
0C000h–0DFFFh
06000h–06FFFh
SA1
0
0
0
1
0
X
32/16
04000h–0BFFFh
02000h–05FFFh
0
1
X
SA0
0
0
0
0
0
X
16/8
00000h–03FFFh
00000h–01FFFh
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