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参数资料
型号： SFCF8192H4BK4SA-I-QT-553-SMA
厂商： Swissbit NA Inc
文件页数： 75/99页
文件大小： 0K
描述： FLASH SLC UDMA/MDMA/PIO 8G
视频文件： Swissbit Manufacturing Overview
RoHS指令信息： Environment Protection Declaration
标准包装： 20
系列： C-300
存储容量： 8GB
存储器类型： CompactFlash?
其它名称： 1052-1012
Table 79: Features Supported
Feature
01h/81h
02h/82h
03h
05h/85h
09h/89h
0Ah/8Ah
55h/Aah
66h/CCh
69h
96h
97h
9Ah
BBh
Operation
Enable/Disable 8-bit data transfers.
Enable/Disable write cache.
Set transfer mode based on value in Sector Count register.
Enable/Disable advance power management.
Enable/Disable extended power operations.
Enable/Disable power level 1 commands.
Disable/Enable Read Look Ahead.
Disable/Enable Power On Reset (POR) established of defaults at Soft Reset.
NOP Accepted for backward compatibility.
NOP Accepted for backward compatibility.
Accepted for backward compatibility. Use of this Feature is not recommended.
Set the host current source capability.
Allows trade-off between current drawn and read/write speed.
4 bytes of data apply on Read/Write Long commands
Features 01h and 81h are used to enable and clear 8 bit data transfer modes in True IDE Mode. If the 01h feature
command is issued all data transfers shall occur on the low order D[7:0] data bus and the – IOIS16 signal shall not
be asserted for data register accesses. The host shall not enable this feature for DMA transfers.
Features 02h and 82h allow the host to enable or disable write cache in CompactFlash Storage Cards that
implement write cache. When the subcommand disable write cache is issued, the CompactFlash Storage Card shall
initiate the sequence to flush cache to non-volatile memory before command completion.
Feature 03h allows the host to select the PIO or Multiword DMA transfer mode by specifying a value in the Sector
Count register. The upper 5 bits define the type of transfer and the low order 3 bits encode the mode value. One
PIO mode shall be selected at all times. For Cards which support DMA, one DMA mode shall be selected at all
times. The host may change the selected modes by the Set Features command.
Table 80: Transfer Mode Values
Mode
PIO default mode
PIO default mode, disable IORDY
Bits (7:3)
00000b
00000b
Bits (2:0)
000b
001b
PIO flow control transfer mode
Reserved
Multi-Word DMA mode
Ultra DMA mode
Reserved
00001b
00010b
00100b
01000b
1000b
Mode
N/A
Mode
Mode
N/A
(1)
(1)
(1)
(1)Mode = transfer mode number
Notes: Multiword DMA is not permitted for devices configured in the PC Card Memory or the PC Card I/O interface
mode.
If a CompactFlash Storage Card supports PIO modes greater than 0 and receives a Set Features command with a Set
Transfer Mode parameter and a Sector Count register value of “00000000b”, it shall set its default PIO mode. If
the value is “00000001b” and the CompactFlash Storage Card supports disabling of IORDY, then the CompactFlash
Storage Card shall set its default PIO mode and disable IORDY. A CompactFlash Storage Card shall support all PIO
modes below the highest mode supported, e.g., if PIO mode 1 is supported PIO mode 0 shall be supported.
Support of IORDY is mandatory when PIO mode 3 or above is the current mode of operation.
A CompactFlash Storage Card reporting support for Multiword DMA modes shall support all Multiword DMA modes
below the highest mode supported. For example, if Multiword DMA mode 2 support is reported, then modes 1 and
0 shall also be supported. Note that Multiword DMA shall not be supported while PC Card interface modes are
selected.
A CompactFlash Storage Card reporting support for Ultra DMA modes shall support all Ultra DMA modes below the
highest mode supported. For example, if Ultra DMA mode 2 support is reported then modes 1 and 0 shall also be
supported.
If an Ultra DMA mode is enabled, any previously enabled Multiword DMA mode shall be disabled by the device. If
a Multiword DMA mode is enabled any previously enabled Ultra DMA mode shall be disabled by the device.
Feature 05h allows the host to enable Advanced Power Management. To enable Advanced Power Management,
the host writes the Sector Count register with the desired advanced power management level and then executes a
Set Features command with subcommand code 05h. The power management level is a scale from the lowest
power consumption setting of 01h to the maximum performance level of Feh.
Table 81: Advanced power management levels shows these values.
Swissbit AG
Industriestrasse 4
Swissbit reserves the right to change products or specifications without notice.
Revision: 1.51
CH-9552 Bronschhofen
Switzerland
www.swissbit.com
industrial@swissbit.com
C-300_data_sheet_CF-HxBK_Rev151.doc
Page 75 of 99
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