A49LF040ATL-33 Ver la hoja de datos (PDF) - AMIC Technology
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A49LF040ATL-33 Datasheet PDF : 32 Pages
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A49LF040A
Table 5: Address Decoding Range
ID Strapping
Device Access
Device #0 – 7
Device #8 - 15
Memory Access
Register Access
Memory Access
Register Access
A21:A19
FFFF FFFFH: FFC0 0000H
FFBF FFFFH: FF80 0000H
FF7F FFFFH: FF40 0000H
FF3F FFFFH: FF00 0000H
Memory Size
4 MByte
4 MByte
4 MByte
4 MByte
Table 6: Multiple Device Selection Configurations
Device#
Hardware Strapping
ID[3:0]
A23
Address Bits Decoding
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
Table 7: LPC Register Memory Map (Boot Device)
Memory
Address
Mnemonic
Register Name
FFBF0002h
T_BLOCK_LK
Top Block Lock Register (Block 7)
FFBE0002h
T_MINUS01_LK
Top Block [-1] Lock Register (Block 6)
FFBD0002h
T_MINUS02_LK
Top Block [-2] Lock Register (Block 5)
FFBC0002h
T_MINUS03_LK
Top Block [-3] Lock Register (Block 4)
FFBB0002h
T_MINUS04_LK
Top Block [-4] Lock Register (Block 3)
FFBA0002h
T_MINUS05_LK
Top Block [-5] Lock Register (Block 2)
FFB90002h
T_MINUS06_LK
Top Block [-6] Lock Register (Block 1)
FFB80002h
T_MINUS07_LK
Top Block [-7] Lock Register (Block 0)
FFBC0100h
GPI_REG
LPC General Purpose Input Register
FFBC0000h
MANUF_REG
Manufacturer ID Register
FFBC0001h
DEV_REG
Device ID Register
FFBC0003h
CONT_REG
Continuation ID Register
Default
01h
01h
01h
01h
01h
01h
01h
01h
N/A
37h
9Dh
7Fh
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
PRELIMINARY (March, 2006, Version 0.1)
10
AMIC Technology, Corp.
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