SST49LF020A 데이터 시트보기 (PDF) - Silicon Storage Technology
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SST49LF020A Datasheet PDF : 50 Pages
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Data Sheet
General Purpose Inputs Register
The GPI_REG (General Purpose Inputs Register) passes
the state of GPI[4:0] pins at power-up on the
SST49LF020A. It is recommended that the GPI[4:0] pins
be in the desired state before LFRAME# is brought low for
the beginning of the next bus cycle, and remain in that state
until the end of the cycle. There is no default value since
this is a pass-through register. See the General Purpose
Inputs Register table for the GPI_REG bits and function,
and Table 9 for memory address locations for its respective
device strapping.
TABLE 9: Memory Map Register Addresses
Device #
0 (Boot device)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Hardware Strapping ID[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
2 Mbit LPC Flash
SST49LF020A
JEDEC ID Registers
The JEDEC ID registers identify the device as
SST49LF020A and manufacturer as SST in LPC mode.
See Table 9 for memory address locations for its respective
JEDEC ID location.
GPI_REG
FFBC 0100H
FFB8 0100H
FFB4 0100H
FFB0 0100H
FFAC 0100H
FFA8 0100H
FFA4 0100H
FFA0 0100H
FF9C 0100H
FF98 0100H
FF94 0100H
FF90 0100H
FF8C 0100H
FF88 0100H
FF84 0100H
FF80 0100H
JEDEC ID
Manufacturer
Device
FFBC 0000H
FFBC 0001H
FFB8 0000H
FFB8 0001H
FFB4 0000H
FFB4 0001H
FFB0 0000H
FFB0 0001H
FFAC 0000H
FFAC 0001H
FFA8 0000H
FFA8 0001H
FFA4 0000H
FFA4 0001H
FFA0 0000H
FFA0 0001H
FF9C 0000H
FF9C 0001H
FF98 0000H
FF98 0001H
FF94 0000H
FF94 0001H
FF90 0000H
FF90 0001H
FF8C 0000H
FF8C 0001H
FF88 0000H
FF88 0001H
FF84 0000H
FF84 0001H
FF80 0000H
FF80 0001H
T9.0 1206
©2006 Silicon Storage Technology, Inc.
16
S71206-08-000
5/06
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