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參數(shù)資料
| 型號(hào)： | WEDPNF8M721V-1012BC |
| 元件分類： | 存儲(chǔ)器 |
| 英文描述： | SPECIALTY MEMORY CIRCUIT, PBGA275 |
| 封裝： | 32 X 25 MM, PLASTIC, BGA-275 |
| 文件頁(yè)數(shù)： | 11/42頁(yè) |
| 文件大?。?/td> | 686K |
| 代理商： | WEDPNF8M721V-1012BC |
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White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
WEDPNF8M721V-XBX
FIG. 5
SECTOR PROTECT/UNPROTECT
ALGORITHMS
Wait 1
s
Wait 150
s
RST = VID
PLSCNT = 1
Start
Read from
sector address
with FA6 = 0,
FA1 = 1, FA0 = 0,
Sector Protect:
Write 60h to
sector address
with FA6 = 0,
FA1 = 1, FA0 = 0
Verify Sector
Protect: Write
40h to sector
address with
FA6 = 0, FA1 = 1,
FA0 = 0
Set up sector
address
Remove VID
from RST
First Write
Cycle = 60h
?
Write reset
command
Sector Protect
complete
Protect another
sector?
No
Yes
No
Yes
No
Data = 01h
?
PLSCNT
= 25?
Yes
Reset
PLSCNT = 1
Device failed
Increment
PLSCNT
Temporary Sector
Unprotect Mode
No
Wait 1
s
Wait 15ms
RST = VID
PLSCNT = 1
Start
Read from
sector address
with FA6 = 1,
FA1 = 1, FA0 = 0
Sector Protect:
Write 60h to
sector address
with FA6 = 1,
FA1 = 1, FA0 = 0
Verify Sector
Protect: Write
40h to sector
address with
FA6 = 1, FA1 = 1,
FA0 = 0
Set up first
sector address
Remove VID
from RST
All sectors
protected?
First Write
Cycle = 60h
?
Write reset
command
Sector Unprotect
complete
Last sector
verified?
No
Yes
No
Data = 00h
?
PLSCNT
= 1000?
Yes
Set up
next sector
address
Device failed
Increment
PLSCNT
Protect all sectors:
The indicated portion
of the sector protect
algorithm must be
performed for all
unprotected sectors
prior to issuing the
first sector unprotect
address
No
Temporary Sector
Unprotect Mode
SECTOR PROTECT ALGORITHM
SECTOR UNPROTECT ALGORITHM
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WEDPNF8M721V-1012BI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8Mx72 Synchronous DRAM + 8Mb Flash Mixed Module Multi-Chip Package |
| WEDPNF8M721V-1012BM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8Mx72 Synchronous DRAM + 8Mb Flash Mixed Module Multi-Chip Package |
| WEDPNF8M721V-1015BC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8Mx72 Synchronous DRAM + 8Mb Flash Mixed Module Multi-Chip Package |
| WEDPNF8M721V-1015BI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8Mx72 Synchronous DRAM + 8Mb Flash Mixed Module Multi-Chip Package |
| WEDPNF8M721V-1015BM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8Mx72 Synchronous DRAM + 8Mb Flash Mixed Module Multi-Chip Package |
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