參數(shù)資料
型號(hào)： SST4861
英文描述： TRANSISTOR | JFET | N-CHANNEL | 8MA I(DSS) | SOT-23
中文描述： 晶體管|場(chǎng)效應(yīng)| N溝道| 8mA的我（直）| SOT - 23封裝
文件頁(yè)數(shù)： 36/60頁(yè)
文件大小： 572K
代理商： SST4861
36
Data Sheet
CompactFlash Card
SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256
2001 Silicon Storage Technology, Inc.
S71125-03-000
9/01
375
3.1.5.9 Status & Alternate Status Registers (Address 1F7H[177H]&3F6H[376H]; Offsets 7 & E)
These registers return the CompactFlash card status when read by the host. Reading the Status register does
clear a pending interrupt while reading the Auxiliary Status register does not. The meaning of the status bits are
described as follows:
Bit 7 (BUSY) The busy bit is set when the CompactFlash card has access to the command buffer and
registers and the host is locked out from accessing the command register and buffer. No
other bits in this register are valid when this bit is set to a 1.
Bit 6 (RDY)
RDY indicates whether the device is capable of performing CompactFlash card
operations. This bit is cleared at power up and remains cleared until the CompactFlash
card is ready to accept a command.
Bit 5 (DWF)
This bit, if set, indicates a write fault has occurred.
Bit 4 (DSC)
This bit is set when the CompactFlash card is ready.
Bit 3 (DRQ)
The Data Request is set when the CompactFlash card requires that information be
transferred either to or from the host through the Data register.
Bit 2 (CORR) This bit is set when a Correctable data error has been encountered and the data has
been corrected. This condition does not terminate a multi-sector read operation.
Bit 1 (IDX)
This bit is always set to 0.
Bit 0 (ERR)
This bit is set when the previous command has ended in some type of error. The bits in
the Error register contain additional information describing the error. It is recommended
that media access commands such as Read Sectors and Write Sectors) that end with an
error condition should have the address of the first sector in error in the command block
registers.
3.1.5.10 Device Control Register (Address - 3F6H[376H]; Offset E)
This register is used to control the CompactFlash card interrupt request and to issue an ATA soft reset to the card.
This register can be written even if the device is BUSY. The bits are defined as follows:
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2 (SW Rst)This bit is set to 1 in order to force the CompactFlash card to perform an AT Disk
controller Soft Reset operation. This does not change the PCMCIA Card Configuration
Registers (4.3.2 to 4.3.5) as a hardware Reset does. The Card remains in Reset until
this bit is reset to ‘0.’
Bit1(-IEn)
The Interrupt Enable bit enables interrupts when the bit is 0. When the bit is 1, interrupts
from the CompactFlash card are disabled. This bit also controls the Int bit in the
Configuration and Status Register. This bit is set to 0 at power on and Reset.
Bit0
This bit is ignored by the CompactFlash card.
This bit is an X (don’t care).
This bit is an X (don’t care).
This bit is an X (don’t care).
This bit is an X (don’t care).
This bit is ignored by the CompactFlash card.
D7
D6
RDY
D5
DWF
D4
DSC
D3
DRQ
D2
D1
0
D0
ERR
BUSY
CORR
D7
X
D6
X
D5
X
D4
X
D3
1
D2
D1
-IEn
D0
0
SW Rst
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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(chēng):Silicon Storage Technology, Inc 功能描述:CompactFlash Card
SST48CF008-C1 制造商:SST 制造商全稱(chēng):Silicon Storage Technology, Inc 功能描述:CompactFlash Card
SST48CF016 制造商:SST 制造商全稱(chēng):Silicon Storage Technology, Inc 功能描述:CompactFlash Card
SST48CF016-C1 制造商:SST 制造商全稱(chēng):Silicon Storage Technology, Inc 功能描述:CompactFlash Card
SST48CF024 制造商:SST 制造商全稱(chēng):Silicon Storage Technology, Inc 功能描述:CompactFlash Card
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