參數(shù)資料
型號(hào): SDCFBI-30-101
廠商: SANDISK CORP
元件分類: 存儲(chǔ)控制器/管理單元
英文描述: FLASH MEMORY DRIVE CONTROLLER, XMA50
封裝: PC CARD-50
文件頁數(shù): 105/124頁
文件大?。?/td> 769K
代理商: SDCFBI-30-101
CompactFlash Memory Card Product Manual
SanDisk CompactFlash Memory Card Product Manual 1999 SANDISK CORPORATION
81
6.1.29
Write Sector(s) without Erase - 38H
Bit ->
7
6
54321
0
Command (7)
38H
C/D/H (6)
1
LBA
1
Drive
Head (LBA 27-24)
Cyl High (5)
Cylinder High (LBA 23-16)
Cyl Low (4)
Cylinder Low (LBA 15-8)
Sec Num (3)
Sector Number (LBA 7-0)
Sec Cnt (2)
Sector Count
Feature (1)
X
This command is similar to the Write Sector(s)
command with the exception that an implied
erase before write operation is not performed. This
command has the same protocol as the Write
Sector(s) command. The sectors should be pre-
erased with the Erase Sector(s) command before
this command is issued. If the sector is not pre-
erased with the Erase Sector(s) command, a
normal write sector operation will occur.
This command is much faster than a Write
Sector(s) command if the sector is pre-erased. The
overall
performance of the
combined
Erase
Sector(s) command along with the Write Sector(s)
without Erase command is less than the normal
Write Sector(s) command but has the advantage
of splitting up the overall time so the write only
portion is more than two times the transfer rate of
the normal Write Sector(s) command. Refer to
section 1.8.5 Using the Erase Sector and Write
without
Erase
Commands
for
an
expanded
definition of these commands.
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