AM29LV004 Просмотр технического описания (PDF) - Advanced Micro Devices
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производитель
AM29LV004
Advanced Micro Devices
AM29LV004 Datasheet PDF : 36 Pages
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PRELIMINARY
Table 2. Am29LV004T Top Boot Block Sector Address Table
Sector
A18
A17
A16
A15
A14
A13
SA0
0
0
0
X
X
X
SA1
0
0
1
X
X
X
SA2
0
1
0
X
X
X
SA3
0
1
1
X
X
X
SA4
1
0
0
X
X
X
SA5
1
0
1
X
X
X
SA6
1
1
0
X
X
X
SA7
1
1
1
0
X
X
SA8
1
1
1
1
0
0
SA9
1
1
1
1
0
1
SA10
1
1
1
1
1
X
Sector Size
(Kbytes)
64
64
64
64
64
64
64
32
8
8
16
Address Range
(in hexadecimal)
00000h-0FFFFh
10000h-1FFFFh
20000h-2FFFFh
30000h-3FFFFh
40000h-4FFFFh
50000h-5FFFFh
60000h-6FFFFh
70000h-77FFFh
78000h-79FFFh
7A000h-7BFFFh
7C000h-7FFFFh
Sector
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
Table 3. Am29LV004B Bottom Boot Block Sector Address Table
A18
A17
A16
A15
A14
A13
Sector Size
(Kbytes)
Address Range
(in hexadecimal)
0
0
0
0
0
X
16
00000h-03FFFh
0
0
0
0
1
0
8
04000h-05FFFh
0
0
0
0
1
1
8
06000h-07FFFh
0
0
0
1
X
X
32
08000h-0FFFFh
0
0
1
X
X
X
64
10000h-1FFFFh
0
1
0
X
X
X
64
20000h-2FFFFh
0
1
1
X
X
X
64
30000h-3FFFFh
1
0
0
X
X
X
64
40000h-4FFFFh
1
0
1
X
X
X
64
50000h-5FFFFh
1
1
0
X
X
X
64
60000h-6FFFFh
1
1
1
X
X
X
64
70000h-7FFFFh
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 sec-
tor 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 program-
ming equipment may then read the corresponding iden-
tifier 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.
Am29LV004
9
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