參數(shù)資料
型號： SST4861
英文描述： TRANSISTOR | JFET | N-CHANNEL | 8MA I(DSS) | SOT-23
中文描述： 晶體管|場效應(yīng)| N溝道| 8mA的我（直）| SOT - 23封裝
文件頁數(shù)： 45/60頁
文件大小： 572K
代理商： SST4861
Data Sheet
CompactFlash Card
SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256
45
2001 Silicon Storage Technology, Inc.
S71125-03-000
9/01
375
3.2.1.9 Read Buffer - E4H
The Read Buffer command enables the host to read the current contents of the CompactFlash Card’s
sector buffer. This command has the same protocol as the Read Sector(s) command.
3.2.1.10 Read Multiple - C4H
Note:
The current revision of the SST CompactFlash card can support up to a block count of 1 as indicated in the Identify Drive
Command information.
The Read Multiple command performs similarly to the Read Sectors command. Interrupts are not
generated on every sector, but on the transfer of a block which contains the number of sectors defined
by a Set Multiple command.
Command execution is identical to the Read Sectors operation except that the number of sectors
defined by a Set Multiple command are transferred without intervening interrupts. DRQ qualification of
the transfer is required only at the start of the data block, not on each sector.
The block count of sectors to be transferred without intervening interrupts is programmed by the Set
Multiple Mode command, which must be executed prior to the Read Multiple command. When the Read
Multiple command is issued, the Sector Count Register contains the number of sectors (not the number
of blocks or the block count) requested. If the number of requested sectors is not evenly divisible by the
block count, as many full blocks as possible are transferred, followed by a final, partial block transfer.
The partial block transfer is for n sectors, where
n = remainder(sector count/block count)
If the Read Multiple command is attempted before the Set Multiple Mode command has been executed
or when Read Multiple commands are disabled, the Read Multiple operation is rejected with an Aborted
Command error. Disk errors encountered during Read Multiple commands are posted at the beginning
of the block or partial block transfer, but DRQ is still set and the data transfer will take place as it
normally would, including transfer of corrupted data, if any.
Interrupts are generated when DRQ is set at the beginning of each block or partial block. The error
reporting is the same as that on a Read Sector(s) Command. This command reads from 1 to 256
sectors as specified in the Sector Count register. A sector count of 0 requests 256 sectors. The transfer
begins at the sector specified in the Sector Number Register.
Bit ->
7
6
5
4
3
2
1
0
Command (7)
C/D/H (6)
Cyl High (5)
Cyl Low (4)
Sec Num (3)
Sec Cnt (2)
Feature (1)
E4H
X
Drive
X
X
X
X
X
X
Bit ->
7
6
5
4
3
2
1
0
Command (7)
C/D/H (6)
Cyl High (5)
Cyl Low (4)
Sec Num (3)
Sec Cnt (2)
Feature (1)
C4H
1
LBA
1
Drive
Head (LBA 27-24)
Cylinder High (LBA 23-16)
Cylinder Low (LBA 15-8)
Sector Number (LBA 7-0)
Sector Count
X
相關(guān)PDF資料
PDF描述
SST48CF064-C1 CAP ROUND W/SHUTTER WINDOW GRN
SST48CF008 CompactFlash Card
SST48CF008-C1 CompactFlash Card
SST48CF016 CompactFlash Card
SST48CF016-C1 CompactFlash Card
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SST48CF008 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:CompactFlash Card
SST48CF008-C1 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:CompactFlash Card
SST48CF016 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:CompactFlash Card
SST48CF016-C1 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:CompactFlash Card
SST48CF024 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:CompactFlash Card
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