SST49LF160C Datasheet, PDF (20/35 Pages) Silicon Storage Technology, Inc – 16 Mbit LPC Flash

Advance Information
REGISTERS
There are four types of registers available on the
SST49LF160C, General Purpose Inputs registers, Block
Locking registers, Security ID register, and the JEDEC ID
registers. These registers appear at their respective
address location in the 4 GByte system memory map.
Unused register locations will read as 00H. Any attempt to
read or write any register during an internal Write operation
will be ignored.
Read or write access to the register during an internal Pro-
gram/Erase operation will be completed as follows:
• General Purpose Inputs register, and Block Lock-
ing registers can be accessed normally
• Security ID register and the JEDEC ID registers
can not be accessed (reading these registers will
return unused register data 00H).
General Purpose Inputs Register
The General Purpose Inputs register (GPI_REG) passes
the state of GPI[4:0] pins on the SST49LF160C. It is rec-
ommended that the GPI[4:0] pins be in the desired state
before LFRAME# is brought low for the beginning of the
bus cycle, and remain in that state until the end of the cycle.
There is no default value since this is a pass-through regis-
ter. The GPI_REG register for the boot device appears at
FFBC0100H in the 4 GByte system memory map, and will
appear elsewhere if the device is not the boot device (see
Table 12). This register is not available to be read when the
device is in an Erase/Program operation.
TABLE 12: General Purpose Register
Register
Default
Register Address¹ Value Access
GPI_REG
FFBC 0100H
N/A
R
T12.0 1315
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.
Block Locking Registers
SST49LF160C 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 13. Unused register locations will return 00H if
read.
16 Mbit LPC Flash
SST49LF160C
TABLE 13: Block Locking Registers
Register
SST49LF160C
Protected
Block Memory
Size Address¹ Range
Memory
Map
Register
Address¹
T_BLOCK_LK 16K 1FFFFFH-1FC000H FFBFC002H
T_MINUS01_LK 8K
1FBFFFH-1FA000H FFBFA002H
T_MINUS02_LK 8K
1F9FFFH-1F8000H FFBF8002H
T_MINUS03_LK 32K 1F7FFFH-1F0000H FFBF0002H
T_MINUS04_LK 64K 1EFFFFH-1E0000H FFBE0002H
T_MINUS05_LK 64K 1DFFFFH-1D0000H FFBD0002H
T_MINUS06_LK 64K 1CFFFFH-1C0000H FFBC0002H
T_MINUS07_LK 64K 1BFFFFH-1B0000H FFBB0002H
T_MINUS08_LK 64K 1AFFFFH-1A0000H FFBA0002H
T_MINUS09_LK 64K 19FFFFH-190000H FFB90002H
T_MINUS10_LK 64K 18FFFFH-180000H FFB80002H
T_MINUS11_LK 64K 17FFFFH-170000H FFB70002H
T_MINUS12_LK 64K 16FFFFH-160000H FFB60002H
T_MINUS13_LK 64K 15FFFFH-150000H FFB50002H
T_MINUS14_LK 64K 14FFFFH-140000H FFB40002H
T_MINUS15_LK 64K 13FFFFH-130000H FFB30002H
T_MINUS16_LK 64K 12FFFFH-120000H FFB20002H
T_MINUS17_LK 64K 11FFFFH-110000H FFB10002H
T_MINUS18_LK 64K 10FFFFH-100000H FFB00002H
T_MINUS19_LK 64K 0FFFFFH-0F0000H FFAF0002H
T_MINUS20_LK 64K 0EFFFFH-0E0000H FFAE0002H
T_MINUS21_LK 64K 0DFFFFH-0D0000H FFAD0002H
T_MINUS22_LK 64K 0CFFFFH-0C0000H FFAC0002H
T_MINUS23_LK 64K 0BFFFFH-0B0000H FFAB0002H
T_MINUS24_LK 64K 0AFFFFH-0A0000H FFAA0002H
T_MINUS25_LK 64K 09FFFFH-090000H FFA90002H
T_MINUS26_LK 64K 08FFFFH-080000H FFA80002H
T_MINUS27_LK 64K 07FFFFH-070000H FFA70002H
T_MINUS28_LK 64K 06FFFFH-060000H FFA60002H
T_MINUS29_LK 64K 05FFFFH-050000H FFA50002H
T_MINUS30_LK 64K 04FFFFH-040000H FFA40002H
T_MINUS31_LK 64K 03FFFFH-030000H FFA30002H
T_MINUS32_LK 64K 02FFFFH-020000H FFA20002H
T_MINUS33_LK 64K 01FFFFH-010000H FFA10002H
T_MINUS34_LK 64K 00FFFFH-000000H FFA00002H
T13.0 1315
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.
©2006 Silicon Storage Technology, Inc.
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S71315-00-000
4/06