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参数资料
| 型号： | SFCF2048H2BU2TO-I-MS-517-STD |
| 厂商： | Swissbit NA Inc |
| 文件页数： | 79/102页 |
| 文件大小： | 0K |
| 描述： | FLASH SLC UDMA/MDMA/PIO 2GB |
| 标准包装： | 1 |
| 系列： | C-440 |
| 存储容量： | 2GB |
| 存储器类型： | CompactFlash? |
| 其它名称： | 1052-1094 |
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10.31 Set Features (EFh)
Table 91: Set Features
Task File Register
7
6
5
4
3
2
1
0
COMMAND
EFh
DRIVE/HEAD
CYLINDER HI
CYLINDER LOW
SECTOR NUM
SECTOR COUNT
FEATURES
nu
D
nu
nu
nu
Config
Feature
nu
Table 92: 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 TM Storage Cards that
implement write cache. When the subcommand disable write cache is issued, the CompactFlash TM 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 93: 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 TM 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 TM Storage Card supports disabling of IORDY, then the
CompactFlash TM Storage Card shall set its default PIO mode and disable IORDY. A CompactFlash TM 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.
Swissbit AG
Industriestrasse 4
Swissbit reserves the right to change products or specifications without notice.
Revision: 1.00
CH-9552 Bronschhofen
Switzerland
www.swissbit.com
industrial@swissbit.com
C-440_data_sheet_CF-HxBU_Rev100.doc
Page 79 of 102
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相关代理商/技术参数 |
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| SFCF2048H2BU2TO-I-MS-527-STD | 制造商:SWISSBIT NA INC 功能描述:FLASH |
| SFCF2048H4BK1SA-C-QT-553-SMA | 制造商:SWISSBIT NA INC 功能描述:FLASH |
| SFCF2048H4BK1SA-I-QT-553-SMA | 功能描述:FLASH SLC UDMA/MDMA/PIO 2G RoHS:是 类别:存储卡，模块 >> 存储器，PC 卡 系列:C-300 标准包装:30 系列:- 存储容量:8GB 存储器类型:存储卡 - Extreme III SD? |
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| SFCF2048H4BK2SA-I-DS-553-SMA | 功能描述:FLASH SLC UDMA/MDMA/PIO 2G RoHS:是 类别:存储卡，模块 >> 存储器，PC 卡 系列:C-300 标准包装:30 系列:- 存储容量:8GB 存储器类型:存储卡 - Extreme III SD? |
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