AM29F400BT-90DPI1 查看數據表（PDF） - Advanced Micro Devices
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AM29F400BT-90DPI1
Advanced Micro Devices
AM29F400BT-90DPI1 Datasheet PDF : 37 Pages
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PRELIMINARY
Table 2. Am29F400BT Top Boot Block Sector Address Table
Sector Size
(Kbytes/
Sector A17 A16 A15 A14 A13 A12
Kwords)
SA0
0
0
0
X
X
X
64/32
SA1
0
0
1
X
X
X
64/32
SA2
0
1
0
X
X
X
64/32
SA3
0
1
1
X
X
X
64/32
SA4
1
0
0
X
X
X
64/32
SA5
1
0
1
X
X
X
64/32
SA6
1
1
0
X
X
X
64/32
SA7
1
1
1
0
X
X
32/16
SA8
1
1
1
1
0
0
8/4
SA9
1
1
1
1
0
1
8/4
SA10
1
1
1
1
1
X
16/8
Address Range (in hexadecimal)
(x8)
Address Range
(x16)
Address Range
00000h–0FFFFh
00000h–07FFFh
10000h–1FFFFh
08000h–0FFFFh
20000h–2FFFFh
10000h–17FFFh
30000h–3FFFFh
18000h–1FFFFh
40000h–4FFFFh
20000h–27FFFh
50000h–5FFFFh
28000h–2FFFFh
60000h–6FFFFh
30000h–37FFFh
70000h–77FFFh
38000h–3BFFFh
78000h–79FFFh
3C000h–3CFFFh
7A000h–7BFFFh
3D000h–3DFFFh
7C000h–7FFFFh
3E000h–3FFFFh
Table 3. Am29F400BB Bottom Boot Block Sector Address Table
Sector Size
(Kbytes/
Sector A17 A16 A15 A14 A13 A12
Kwords)
Address Range (in hexadecimal)
(x8)
Address Range
(x16)
Address Range
SA0
0
0
0
0
0
X
16/8
00000h–03FFFh
00000h–01FFFh
SA1
0
0
0
0
1
0
8/4
04000h–05FFFh
02000h–02FFFh
SA2
0
0
0
0
1
1
SA3
0
0
0
1
X
X
8/4
32/16
06000h–07FFFh
08000h–0FFFFh
03000h–03FFFh
04000h–07FFFh
SA4
0
0
1
X
X
X
SA5
0
1
0
X
X
X
64/32
64/32
10000h–1FFFFh
20000h–2FFFFh
08000h–0FFFFh
10000h–17FFFh
SA6
0
1
1
X
X
X
SA7
1
0
0
X
X
X
64/32
64/32
30000h–3FFFFh
40000h–4FFFFh
18000h–1FFFFh
20000h–27FFFh
SA8
1
0
1
X
X
X
64/32
50000h–5FFFFh
28000h–2FFFFh
SA9
1
1
0
X
X
X
SA10
1
1
1
X
X
X
64/32
64/32
60000h–6FFFFh
70000h–7FFFFh
30000h–37FFFh
38000h–3FFFFh
Note:
Address range is A17:A-1 in byte mode and A17:A0 in word mode. See “Word/Byte Configuration” section for more information.
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 equipment
to automatically match a device to be programmed with
its corresponding programming algorithm. However,
the autoselect codes can also be accessed in-system
through the command register.
When using programming equipment, the autoselect
mode requires VID (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 protection,
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 corre-
sponding 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 VID. See “Command Definitions” for
details on using the autoselect mode.
Am29F400B
9
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