$6 /9
)OH[LEOH VHFWRU DUFKLWHFWXUH
Sector
0
1
2
3
4
5
6
7
8
9
10
Bottom boot sector architecture (AS29LV400B)
×8
×16
Size (Kbytes)
00000h–03FFFh 00000h–01FFFh
16
04000h–05FFFh 02000h–02FFFh
8
06000h–07FFFh 03000h–03FFFh
8
08000h–0FFFFh 04000h–07FFFh
32
10000h–1FFFFh 08000h–0FFFFh
64
20000h–2FFFFh 10000h–17FFFh
64
30000h–3FFFFh 18000h–1FFFFh
64
40000h–4FFFFh 20000h–27FFFh
64
50000h–5FFFFh 28000h–2FFFFh
64
60000h–6FFFFh 30000h–37FFFh
64
70000h–7FFFFh 38000h–3FFFFh
64
Top boot sector architecture (AS29LV400T)
×8
×16
Size (Kbytes)
00000h–0FFFFh 00000h–07FFFh
64
10000h–1FFFFh 08000h–0FFFFh
64
20000h–2FFFFh 10000h–17FFFh
64
30000h–3FFFFh 18000h–1FFFFh
64
40000h–4FFFFh 20000h–27FFFh
64
50000h–5FFFFh 28000h–2FFFFh
64
60000h–6FFFFh 30000h–37FFFh
64
70000h–77FFFh 38000h–3BFFFh
32
78000h–79FFFh 3C000h–3CFFFh
8
7A000h–7BFFFh 3D000h–3DFFFh
8
7C000h–7FFFFh 3E000h–3FFFFh
16
In word mode, there are one 8K word, two 4K word, one 16K word, and seven 32K word sectors. Address range is A17–A-1 if
B YT E
= V
IL
; address range is
A17–A0 if
B YT E
= V
IH
.
,' 6HFWRU DGGUHVV WDEOH
Sector
0
1
2
3
4
5
6
7
8
9
10
A17
0
0
0
0
0
0
0
1
1
1
1
Bottom boot sector address
(AS29LV400B)
A16 A15 A14 A13 A12
0
0
0
0
X
0
0
0
1
0
0
0
0
1
1
0
0
1
X
X
0
1
X
X
X
1
0
X
X
X
1
1
X
X
X
0
0
X
X
X
0
1
X
X
X
1
0
X
X
X
1
1
X
X
X
A17
0
0
0
0
1
1
1
1
1
1
1
Top boot sector address
(AS29LV400T)
A16
A15
A14
A13
A12
0
0
X
X
X
0
1
X
X
X
1
0
X
X
X
1
1
X
X
X
0
0
X
X
X
0
1
X
X
X
1
0
X
X
X
1
1
0
X
X
1
1
1
0
0
1
1
1
0
1
1
1
1
1
X
5($' FRGHV
Mode
MFR code (Alliance Semiconductor)
×8 T boot
×8 B boot
×16 T boot
×16 B boot
A17–A12
X
X
X
X
X
Sector address
A6
L
L
L
L
L
L
A1
L
L
L
L
L
H
A0
L
H
H
H
H
L
Code
52h
B9h
BAh
22B9h
22BAh
01h protected
00h unprotected
Device code
Sector protection
Key: L =Low (<V
IL
); H = High (>V
IH
); X =Don’t care
9/26/01; V.0.9.9.2
$OOLDQFH 6HPLFRQGXFWRU
P. 6 of 26
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
