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参数资料
| 型号： | S71JL064H80BFI122 |
| 厂商： | ADVANCED MICRO DEVICES INC |
| 元件分类： | 存储器 |
| 英文描述： | SPECIALTY MEMORY CIRCUIT, PBGA73 |
| 封装： | 11.60 X 8 MM, FBGA-73 |
| 文件页数： | 47/95页 |
| 文件大小： | 2244K |
| 代理商： | S71JL064H80BFI122 |
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February 25, 2004 S71JLxxxHxx_00A1
S29JL064H
51
Pre l i m i n a r y
Sector protect/Sector Unprotect requires VID on the RESET# pin only, and can be
implemented either in-system or via programming equipment. Figure 2 shows
the algorithms and Figure 26 shows the timing diagram. For sector unprotect, all
unprotected sectors must first be protected prior to the first sector unprotect
write cycle. Note that the sector unprotect algorithm unprotects all sectors in par-
allel. All previously protected sectors must be individually re-protected. To
change data in protected sectors efficiently, the temporary sector unprotect func-
tion is available. See “Temporary Sector Unprotect” .
The device is shipped with all sectors unprotected. Optional Spansion program-
ming service enable programming and protecting sectors at the factory prior to
shipping the device. Contact your local sales office for details.
It is possible to determine whether a sector is protected or unprotected. See the
"Autoselect Mode" section section for details.
Write Protect (WP#)
The Write Protect function provides a hardware method of protecting without
using VID. This function is one of two provided by the WP#/ACC pin.
If the system asserts VIL on the WP#/ACC pin, the device disables program and
erase functions in sectors 0, 1, 140, and 141, independently of whether those
sectors were protected or unprotected using the method described in “Sector/
If the system asserts VIH on the WP#/ACC pin, the device reverts to whether sec-
tors 0, 1, 140, and 141 were last set to be protected or unprotected. That is,
sector protection or unprotection for these sectors depends on whether they were
last protected or unprotected using the method described in “Sector/Sector Block
Note that the WP#/ACC pin must not be left floating or unconnected; inconsistent
behavior of the device may result.
SA107–SA110
11001XXXXX
256 (4x64) Kbytes
SA111–SA114
11010XXXXX
256 (4x64) Kbytes
SA115–SA118
11011XXXXX
256 (4x64) Kbytes
SA119–SA122
11100XXXXX
256 (4x64) Kbytes
SA123–SA126
11101XXXXX
256 (4x64) Kbytes
SA127–SA130
11110XXXXX
256 (4x64) Kbytes
SA131–SA133
1111100XXX,
1111101XXX,
1111110XXX
192 (3x64) Kbytes
SA134
1111111000
8 Kbytes
SA135
1111111001
8 Kbytes
SA136
1111111010
8 Kbytes
SA137
1111111011
8 Kbytes
SA138
1111111100
8 Kbytes
SA139
1111111101
8 Kbytes
SA140
1111111110
8 Kbytes
SA141
1111111111
8 Kbytes
Table 5. S71JLxxxHxx_00 Boot Sector/Sector Block Addresses for Protection/Unprotection (Continued)
Sector
A21–A12
Sector/
Sector Block Size
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