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參數(shù)資料
| 型號： | SMC032BFY6E |
| 廠商： | NUMONYX |
| 元件分類： | PROM |
| 英文描述： | 4M X 8 FLASH 3.3V PROM CARD, 300 ns, UUC50 |
| 封裝： | LEAD FREE, CARD-50 |
| 文件頁數(shù)： | 76/90頁 |
| 文件大?。?/td> | 1863K |
| 代理商： | SMC032BFY6E |
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CF-ATA command description
SMCxxxBF
10.26
Write Multiple command (C5h)
This command is similar to the Write Sectors command. The card sets BSY within 400 ns of
accepting the command. Interrupts are not presented on each sector but on the transfer of a
block which contains the number of sectors defined by Set Multiple. Command execution is
identical to the write sectors operation except that the number of sectors defined by the Set
Multiple command is 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 Write
Multiple command.
When the Write 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 sector/block, 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 = (sector count) module (block count).
If the Write Multiple command is attempted before the Set Multiple Mode command has
been executed or when write multiple commands are disabled, the write multiple operation
will be rejected with an aborted command error.
Errors encountered during write multiple commands are posted after the attempted writes of
the block or partial block transferred. The Write command ends with the sector in error, even
if it is in the middle of a block. Subsequent blocks are not transferred in the event of an error.
Interrupts are generated when DRQ is set at the beginning of each block or partial block.
The command block registers contain the cylinder, head and sector number of the sector
where the error occurred and the sector count register contains the residual number of
sectors that need to be transferred for successful completion of the command. For example,
each block has 4 sectors, a request for 8 sectors is issued and an error occurs on the third
sector. The sector count register contains 6 and the address is that of the third sector.
Note:
The current revision of the CompactFlash memory card only supports a block count of 1 as
indicated in the Identify Drive command information. The Write Multiple command is
provided for compatibility with future products which may support a larger block count.
Table 80 defines the Write Multiple command byte sequence.
Table 80.
Write Multiple
Bit
765
4
3
2
1
0
Command (7)
C5h
C/D/H (6)
1
LBA
1
Drive
Head
Cyl High (5)
Cylinder High
Cyl Low (4)
Cylinder Low
Sect Num (3)
Sector number
Sect Cnt (2)
Sector count
Feature (1)
X
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| SMC04-5-L | 制造商:ELDECO 制造商全稱:ELDECO 功能描述:Standard : UL - IEC 300V - 320V 15A - 17.5A |
| SMC04-5-R | 制造商:ELDECO 制造商全稱:ELDECO 功能描述:Standard : UL - IEC 300V - 320V 15A - 17.5A |
| SMC04GBF | 制造商:NUMONYX 制造商全稱:Numonyx B.V 功能描述:32MByte, 64MByte, 128MByte, 256MByte, 512MByte, 1GByte, 2GByte, and 4GByte 3.3/5V Supply CompactFlash⑩ Card |
| SMC04GBFI6E | 制造商:Micron Technology Inc 功能描述:4GB COMPACT FLASH CARD IND GRADE IND TEMP - Trays |
| SMC04GBFK6E | 功能描述:MEMORY CARD 4GB COMPACT FLASH RoHS:是 類別:存儲卡，模塊 >> 存儲器，PC 卡 系列:- 標準包裝:30 系列:- 存儲容量:8GB 存儲器類型:存儲卡 - Extreme III SD? |
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