A49LF040TL-33F Ver la hoja de datos (PDF) - AMIC Technology
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A49LF040TL-33F Datasheet PDF : 31 Pages
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Table 4: Address Bit Definition
A31:A23
A23
1111 1111b
ID[3]
A22
1 = Memory access
0 = Register access
A49LF040
A21:A19
ID[2:0]
A18:A0
Device memory address
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 Configuration
Device#
Hardware Strapping
ID[3:0]
A23
Address Bits Decoding
A21
A20
A19
0 (Boot device)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
1
1
1
1
1
1
1
0
1
1
0
1
1
1
0
0
1
0
1
1
1
0
1
0
1
0
0
1
1
0
0
0
0
1
1
1
0
1
1
0
0
1
0
1
0
1
0
0
0
0
1
1
0
0
1
0
0
0
0
1
0
0
0
0
Table 7: LPC Register Memory Map
Memory
Address
Mnemonic
FFBC0100h
FFBC0000h
GPI_REG
MANUF_REG
FFBC0001h
DEV_REG
FFBC0003h
CONT_REG
Register Name
LPC General Purpose Input Register
Manufacturer ID Register
Device ID Register
Continuation ID Register
Default
N/A
37h
9Dh
7Fh
Type
R
R
R
R
PRELIMINARY (August, 2004, Version 0.1)
9
AMIC Technology, Corp.
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