參數(shù)資料
型號(hào): SST55LC100M-45-C-BWE
元件分類: 存儲(chǔ)控制器/管理單元
英文描述: IDE COMPATIBLE, FLASH MEMORY DRIVE CONTROLLER, PBGA84
封裝: 9 X 9 MM, ROHS COMPLIANT, TFBGA-84
文件頁數(shù): 49/75頁
文件大?。?/td> 1040K
代理商: SST55LC100M-45-C-BWE
Advance Information
CompactFlash Card Controller
SST55LC100M
2006 Silicon Storage Technology, Inc.
S71316-00-000
3/06
53
9.2.6.48 Write-Multiple-Without-Erase - CDH
Use of this command is not recommended, but it is supported as Write-Multiple command for backward
compatibility.
9.2.6.49 Write-Sector(s) - 30H or 31H
This command writes from 1 to 256 sectors as specified in the Sector Count register. A sector count of
zero requests 256 sectors. The transfer begins at the sector specified in the Sector Number register.
When this command is accepted, the CompactFlash card controller sets BSY, then sets DRQ and
clears BSY, then waits for the host to fill the sector buffer with the data to be written. No interrupt is
generated to start the first host transfer operation. No data should be transferred by the host until BSY
has been cleared by the host.
For multiple sectors, after the first sector of data is in the buffer, BSY will be set and DRQ will be
cleared. After the next buffer is ready for data, BSY is cleared, DRQ is set and an interrupt is generated.
When the final sector of data is transferred, BSY is set and DRQ is cleared. It will remain in this state
until the command is completed at which time BSY is cleared and an interrupt is generated.
If an error occurs during a write of more than one sector, writing terminates at the sector where the
error occurs. The Command Block registers contain the cylinder, head and sector number of the sector
where the error occurred. The host may then read the command block to determine what error has
occurred, and on which sector.
Bit ->
76543210
Command (7)
CDH
C/D/H (6)
1LBA
1
Drive
Head
Cyl High (5)
Cylinder High
Cyl Low (4)
Cylinder Low
Sec Num (3)
Sector Number
Sec Cnt (2)
Sector Count
Feature (1)
X
Bit ->
76543210
Command (7)
30H or 31H
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
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