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A49LF040 Datasheet(PDF) 10 Page - AMIC Technology

Part No. A49LF040
Description  4 Mbit CMOS 3.3Volt-only Low Pin Count Flash Memory
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Maker  AMICC [AMIC Technology]
Homepage  http://www.amictechnology.com
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A49LF040 Datasheet(HTML) 10 Page - AMIC Technology

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A49LF040
PRELIMINARY
(August, 2004, Version 0.1)
9
AMIC Technology, Corp.
Table 4: Address Bit Definition
Table 5: Address Decoding Range
Table 6: Multiple Device Selection Configuration
Table 7: LPC Register Memory Map
A31:A23
A23
A22
A21:A19
A18:A0
1111 1111b
ID[3]
1 = Memory access
0 = Register access
ID[2:0]
Device memory address
ID Strapping
Device Access
A21:A19
Memory Size
Memory Access
FFFF FFFFH: FFC0 0000H
4 MByte
Device #0 – 7
Register Access
FFBF FFFFH: FF80 0000H
4 MByte
Memory Access
FF7F FFFFH: FF40 0000H
4 MByte
Device #8 - 15
Register Access
FF3F FFFFH: FF00 0000H
4 MByte
Address Bits Decoding
Device#
Hardware Strapping
ID[3:0]
A23
A21
A20
A19
0 (Boot device)
0000
1
1
1
1
1
0001
1
1
1
0
2
0010
1
1
0
1
3
0011
1
1
0
0
4
0100
1
0
1
1
5
0101
1
0
1
0
6
0110
1
0
0
1
7
0111
1
0
0
0
8
1000
0
1
1
1
9
1001
0
1
1
0
10
1010
0
1
0
1
11
1011
0
1
0
0
12
1100
0
0
1
1
13
1101
0
0
1
0
14
1110
0
0
0
1
15
1111
0
0
0
0
Memory
Address
Mnemonic
Register Name
Default
Type
FFBC0100h
GPI_REG
LPC General Purpose Input Register
N/A
R
FFBC0000h
MANUF_REG
Manufacturer ID Register
37h
R
FFBC0001h
DEV_REG
Device ID Register
9Dh
R
FFBC0003h
CONT_REG
Continuation ID Register
7Fh
R


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