參數(shù)資料
型號(hào)： SST4859
英文描述： TRANSISTOR | JFET | N-CHANNEL | 50MA I(DSS) | SOT-23
中文描述： 晶體管|場(chǎng)效應(yīng)| N溝道| 50mA的我（直）| SOT - 23封裝
文件頁(yè)數(shù)： 37/60頁(yè)
文件大?。?/td> 572K
代理商： SST4859
Data Sheet
CompactFlash Card
SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256
37
2001 Silicon Storage Technology, Inc.
S71125-03-000
9/01
375
3.1.5.11 Card (Drive) Address Register (Address3F7H[377H]; Offset F)
This register is provided for compatibility with the AT disk drive interface. It is recommended that this register not be
mapped into the host’s I/O space because of potential conflicts on Bit 7. The bits are defined as follows:
Bit 7
This bit is don’t care.
Implementation Note:
Conflicts may occur on the host data bus when this bit is provided by a Floppy Disk
Controller operating at the same addresses as the CompactFlash card. Following are
some possible solutions to this problem for the PCMCIA implementation:
1. Locate the CompactFlash card at a non-conflicting address, i.e. Secondary address
(377) or in an independently decoded Address Space when a Floppy Disk Controller is
located at the Primary addresses.
2. Do not install a Floppy and a CompactFlash card in the system at the same time.
3. Implement a socket adapter which can be programmed to (conditionally) tri-state D7
of I/0 address 3F7H/377H when a CompactFlash card is installed and conversely to tri-
state D6- D0 of I/O address 3F7H/377H when a floppy controller is installed.
4. Do not use the CompactFlash Card’s Drive Address register. This may be accom-
plished by either a) If possible, program the host adapter to enable only I/O addresses
1F0H-1F7H, 3F6H (or 170H-177H, 176H) to the CompactFlash card or b) if provided use
an additional Primary/Secondary configuration in the CompactFlash card which does not
respond to accesses to I/O locations 3F7H and 377H. With either of these implementa-
tions, the host software must not attempt to use information in the Drive Address Register.
Bit 6 (-WTG) This bit is 0 when a write operation is in progress, otherwise, it is 1.
Bit 5 (-HS3)
This bit is the negation of bit 3 in the Drive/Head register.
Bit 4 (-HS2)
This bit is the negation of bit 2 in the Drive/Head register.
Bit 3 (-HS1)
This bit is the negation of bit 1 in the Drive/Head register.
Bit 2 (-HS0)
This bit is the negation of bit 0 in the Drive/Head register.
Bit 1 (-nDS1) This bit is 0 when drive 1 is active and selected.
Bit 0 (-nDS0) This bit is 0 when the drive 0 is active and selected.
3.2 CF-ATA Command Description
This section defines the software requirements and the format of the commands the host sends to the Compact-
Flash cards. Commands are issued to the CompactFlash card by loading the required registers in the command
block with the supplied parameters, and then writing the command code to the Command Register. The manner in
which a command is accepted varies. There are three classes (see Table 3-6) of command acceptance, all depen-
dent on the host not issuing commands unless the CompactFlash card is not busy (BSY=0).
3.2.1 CF-ATA Command Set
Table 3-6 summarizes the CF-ATA command set with the paragraphs that follow describing the individual com-
mands and the task file for each.
D7
X
D6
D5
-HS3
D4
-HS2
D3
-HS1
D2
-HS0
D1
D0
-WTG
-nDS1
-nDS0
相關(guān)PDF資料
PDF描述
SST4860 TRANSISTOR | JFET | N-CHANNEL | 20MA I(DSS) | SOT-23
SST4861 TRANSISTOR | JFET | N-CHANNEL | 8MA I(DSS) | SOT-23
SST48CF064-C1 CAP ROUND W/SHUTTER WINDOW GRN
SST48CF008 CompactFlash Card
SST48CF008-C1 CompactFlash Card
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SST4860 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRANSISTOR | JFET | N-CHANNEL | 20MA I(DSS) | SOT-23
SST4861 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRANSISTOR | JFET | N-CHANNEL | 8MA I(DSS) | SOT-23
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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*