SST49LF008C-33-4C-NH View Datasheet(PDF) - Silicon Storage Technology
Part Name
Description
MFG CO.
SST49LF008C-33-4C-NH Datasheet PDF : 36 Pages
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Advance Information
Block and PDA Sector Locking Registers
SST49LF00xC provides software controlled lock protection
through a set of Block Locking registers. The Block Locking
registers are read/write registers and they are accessible
through standard addressable memory locations specified
in Table 14. Unused register locations will return 00H if
read.
In case of multi-byte register reads with Firmware Memory
cycle, the device will return register data for the addressed
register until the command finishes, or is aborted.
4 Mbit / 8 Mbit LPC Serial Flash
SST49LF004C / SST49LF008C
SST49LF00xC also provides PDA Sector Locking Regis-
ters at addresses shown in Table 15. These locking regis-
ters can be accessed only after Open Protected Area
command is executed. After Hide Protected Area com-
mand, as well as after Power On and Reset, read from
addresses specified in Table 15 returns unused register
space data 00H, and write to these addresses is ignored.
In case of multi-byte read of any locking register, the device
will return register data for the addressed register until the
command finishes, or is aborted.
TABLE 14: BLOCK LOCKING REGISTERS
Register
Block
Size
Protected Memory Address1 Range
SST49LF004C
SST49LF008C
Memory Map
Register Address1
T_BLOCK_LK
16K
07FFFFH-07C000H
0FFFFFH-0FC000H
FFBFC002H
T_MINUS01_LK
8K
07BFFFH-07A000H
0FBFFFH-0FA000H
FFBFA002H
T_MINUS02_LK
8K
079FFFH-078000H
0F9FFFH-0F8000H
FFBF8002H
T_MINUS03_LK
32K
077FFFH-070000H
0F7FFFH-0F0000H
FFBF0002H
T_MINUS04_LK
64K
06FFFFH-060000H
0EFFFFH-0E0000H
FFBE0002H
T_MINUS05_LK
64K
05FFFFH-050000H
0DFFFFH-0D0000H
FFBD0002H
T_MINUS06_LK
64K
04FFFFH-040000H
0CFFFFH-0C0000H
FFBC0002H
T_MINUS07_LK
64K
03FFFFH-030000H
0BFFFFH-0B0000H
FFBB0002H
T_MINUS08_LK
64K
02FFFFH-020000H
0AFFFFH-0A0000H
FFBA0002H
T_MINUS09_LK
64K
01FFFFH-010000H
09FFFFH-090000H
FFB90002H
T_MINUS10_LK
64K
00FFFFH-000000H
08FFFFH-080000H
FFB80002H
T_MINUS11_LK
64K
07FFFFH-070000H
FFB70002H
T_MINUS12_LK
64K
06FFFFH-060000H
FFB60002H
T_MINUS13_LK
64K
05FFFFH-050000H
FFB50002H
T_MINUS14_LK
64K
04FFFFH-040000H
FFB40002H
T_MINUS15_LK
64K
03FFFFH-030000H
FFB30002H
T_MINUS16_LK
64K
02FFFFH-020000H
FFB20002H
T_MINUS17_LK
64K
01FFFFH-010000H
FFB10002H
T_MINUS18_LK
64K
00FFFFH-000000H
FFB00002H
T14.0 1292
1. Address shown in this column is for boot device only. Address locations should appear elsewhere in the 4 GByte system memory
map depending on ID strapping values on ID[3:0] pins when multiple LPC memory devices are used in a system.
TABLE 15: PROTECTED DATA AREA SECTOR LOCKING REGISTERS
Register
Sector
Size
SST49LF00xC PDA Protected Addresses1
For Write Access
For Read Access
Memory Map
Register Address1
T_PDA2_LK
4K
FFFC A000H–FFFC AFFFH
FFBC A000H–FFBC AFFFH
FFBC 2202H
T_PDA1_LK
4K
FFFC 9000H–FFFC 9FFFH
FFBC 9000H–FFBC 9FFFH
FFBC 1202H
T_PDA0_LK
4K
FFFC 8000H–FFFC 8FFFH
FFBC 8000H–FFBC 8FFFH
FFBC 0202H
T15.0 1292
1. Address shown in this column is for boot device only. Address locations should appear elsewhere in the 4 GByte system memory
map depending on ID strapping values on ID[3:0] pins when multiple LPC memory devices are used in a system.
©200 Silicon Storage Technology, Inc.
22
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