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S29GL01GT13TFNyyxx Datasheet(Fiches technique) 10 Page - Cypress Semiconductor

Numéro de pièce S29GL01GT13TFNyyxx
Description  1 Gbit (128 Mbyte), 512 Mbit (64 Mbyte)
Télécharger  105 Pages
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Fabricant  CYPRESS [Cypress Semiconductor]
Site Internet  http://www.cypress.com
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Document Number: 002-00247 Rev. *G
Page 10 of 105
S29GL01GT, S29GL512T
The sector address supplied during the Secure Silicon Entry command selects the Flash Memory Array sector that is overlaid by the
Secure Silicon Region address map. The SSR is overlaid starting at location 0 in the selected sector. Use of the sector 0 address is
recommended for future compatibility. While the SSR ASO is entered the content of all other sectors is memory core data for read
operations. Program is not allowed outside of ASO.
2.6
Sector Protection Control
2.6.1
Lock Register ASO
The Lock register ASO contains a single word of OTP memory. When the ASO is entered the Lock Register appears at all word
locations in the device address space. However, it is recommended to read or program the Lock Register only at location 0 of the
device address space for future compatibility.
2.6.2
Persistent Protection Bits (PPB) ASO
The PPB ASO contains one bit of a Flash Memory Array for each Sector in the device. When the PPB ASO is entered, the PPB bit
for a sector appears in the Least Significant Bit (LSB) of each address in the sector. Reading any address in a sector displays data
where the LSB indicates the non-volatile protection status for that sector. However, it is recommended to read or program the PPB
only at address 0 of the sector for future compatibility. If the bit is 0 the sector is protected against programming and erase
operations. If the bit is 1 the sector is not protected by the PPB. The sector may be protected by other features of ASP.
2.6.3
PPB LOCK ASO
The PPB Lock ASO contains a single bit of volatile memory. The bit controls whether the bits in the PPB ASO may be programmed
or erased. If the bit is 0 the PPB ASO is protected against programming and erase operations. If the bit is 1 the PPB ASO is not
protected. When the PPB Lock ASO is entered the PPB Lock bit appears in the least significant bit (LSB) of each address in the
device address space. However, it is recommended to read or program the PPB Lock only at address 0 of the device for future
compatibility.
2.6.4
Password ASO
The Password ASO contains four words of OTP memory. When the ASO is entered the Password appears starting at address 0 in
the device address space. All locations above the fourth word are undefined.
2.6.5
Dynamic Protection Bits (DYB) ASO
The DYB ASO contains one bit of a volatile memory array for each Sector in the device. When the DYB ASO is entered, the DYB bit
for a sector appears in the least significant bit (LSB) of each address in the sector. Reading any address in a sector displays data
where the LSB indicates the non-volatile protection status for that sector. However, it is recommended to read, set, or clear the DYB
only at address 0 of the sector for future compatibility. If the bit is 0 the sector is protected against programming and erase
operations. If the bit is 1 the sector is not protected by the DYB. The sector may be protected by other features of ASP.
Table 2.4 Secure Silicon Region
Word Address Range
Byte Address Range
Content
Region
Size
(SA) + 0000h to 00FFh
(SA) + 0000h to 01FFh
Factory Locked Secure Silicon Region
SSR0
512 bytes
(SA) + 0100h to 01FFh
(SA) + 0200h to 03FFh
Customer Locked Secure Silicon Region
SSR1
512 bytes
(SA) + 0200h to 02FFh
(SA) + 0400h to 05FFh
Customer Locked Secure Silicon Region
SSR2
512 bytes
(SA) + 0300h to 03FFh
(SA) + 0600h to 07FFh
Customer Locked Secure Silicon Region
with Read Password
SSR3
512 bytes
(SA) + 0400h to FFFFh
(SA) + 0800h to 1FFFFh
Undefined
n/a
126 kbytes




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