th50vsf2580 TOSHIBA Semiconductor CORPORATION, th50vsf2580 Datasheet - Page 26
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th50vsf2580
Manufacturer Part Number
th50vsf2580
Description
Sram And Flash Memory Mixed Multi-chip Package
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TH50VSF2580.pdf
(50 pages)
- Current page: 26 of 50
- Download datasheet (639Kb)
Hidden ROM Area
cells. The area consists of one block. Data Read, Write and Protect can be performed on this block. Because
Protect cannot be released, once the block is protected, data in the block cannot be overwritten.
TABLE. To access the Hidden ROM area, input a Hidden ROM Mode Entry command. The device now enters
Hidden ROM Mode, allowing Read, Write, Erase and Block Protect to be executed. Write and Erase operations
are the same as auto operations except that the device is in Hidden ROM Mode. However, regarding write
operation, Accelaration mode can not be performed during Hidden ROM mode. To protect the hidden ROM area,
use the block protection function. The operation of Block Protect here is the same as a normal Block Protect
except that V
released, even using the temporary block unprotection function. Use Block Protect carefully. Note that in
Hidden ROM Mode, simultaneous operation cannot be performed. Therefore, do not attempt to access areas
other than the hidden ROM area.
Mode.
HIDDEN ROM AREA ADDRESS TABLE
TH50VSF2580AASB
TH50VSF2581AASB
The TH50VSF2580/2581AASB features a 64-Kbyte hidden ROM area which is separate from the memory
The hidden ROM area is located in the address space indicated in the HIDDEN ROM AREA ADDRESS
To exit Hidden ROM Mode, use the Hidden ROM Mode Exit command. This will return the device to Read
TYPE
IH
rather than V
BOTTOM BOOT BLOCK
TOP BOOT BLOCK
ARCHITECTURE
BOOT BLOCK
ID
is input to RESET . Once the block has been protected, protection cannot be
3F0000H~3FFFFFH
000000H~00FFFFH
ADDRESS RANGE
BYTE MODE
64 Kbytes
64 Kbytes
SIZE
TH50VSF2580/2581AASB
1F8000H~1FFFFFH
000000H~007FFFH
ADDRESS RANGE
2001-10-26 26/50
WORD MODE
32 Kwords
32 Kwords
SIZE
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