- 您现在的位置：买卖IC网 > Sheet目录1242 > SFPA32GBQ1BO8TO-I-QT-223-STD (Swissbit NA Inc)FLASH SSD SMART UDMA 2.5" 32GB
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 SSD that implement write cache.
When the subcommand disable write cache is issued, the SSD 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 69: 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 SSD supports PIO modes greater than 0 and receives a Set Features command with a Set Transfer Mode
parameter and a Sector Coun t register value of “00000000b”, it shall set its default PIO mode. If the value
is “00000001b” and the SSD supports disabling of IORDY, then the SSD shall set its default PIO mode and
disable IORDY. A SSD 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 SSD 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 SSD 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 70: Advanced power management levels
Level
Maximum performance
Intermediate power management levels without Standby
Minimum power consumption without Standby
Intermediate power management levels with Standby
Minimum power consumption with Standby
Reserved
Reserved
Sector Count Value
Feh
81h-FDh
80h
02h-7Fh
01h
FFh
00h
In the current version the adv anced power management levels are accepted, but don’t influence
performance and power consumption.
Device performance may increase with increasing power management levels. Device power consumption
may increase with increasing power management levels. The power management levels may contain
discrete bands. For example, a device may implement one power management method from 80h to A0h
and a higher performance, higher power consumption method from level A1h to Feh. Advanced power
management levels 80h and higher do not permit the device to spin down to save power.
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
P-120_data_sheet_PA-QxBO_Rev100.doc
Page 55 of 76
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
SFPK-SL
CONN SFP CAGE
SFSA16GBV1BR4TO-I-QT-226-STD
FLASH SLC UDMA/MDMA/PIO 16GB
SFSA32GBQ1BR8TO-I-QT-226-STD
FLASH SLC UDMA/MDMA/PIO 32GB
SFSA32GBU1BR4TO-I-NC-216-STD
FLASH X-200M SLC MSATA 32GB
SFSA32GBV1BR4TO-I-NC-216-STD
FLASH X-200S SLC SLIM SATA 32GB
SFSA64GBQ1BR8TO-I-NC-216-STD
FLASH SSD UDMA IND 2.5" 64GB
SFSO4404NR
FEMALE SCREWLOCK 4-40 .197"
SFW22R-1STE1
SFW22R-1STE1-FFC/FPC CONN
相关代理商/技术参数
SFPA32GBQ1BO8TO-I-QT-243-STD
制造商:SWISSBIT NA INC 功能描述:FLASH
SFPA36AT0250
制造商:General Electric Company 功能描述:SFP 3P 600V 250A
SFPA4096Q1BO2TO-C-DT-243-STD
制造商:SWISSBIT NA INC 功能描述:FLASH
SFPA4096Q1BO2TO-I-DT-223-STD
功能描述:FLASH SSD SMART UDMA 2.5" 4GB RoHS:是 类别:计算机，办公室 - 元件，配件 >> 固态硬盘驱动器 系列:P-120 标准包装:1 系列:- 存储容量:64GB 存储器类型:闪存 - NAND 其它名称:VL 64 GB SSHD KITVL64GBSSHDKIT
SFPA4096Q1BO2TO-I-DT-243-STD
制造商:SWISSBIT NA INC 功能描述:FLASH
SFPA-53
制造商:未知厂家 制造商全称:未知厂家 功能描述:Schottky Barrier Diodes
SFPA-63
制造商:SANKEN 制造商全称:Sanken electric 功能描述:Schottky Barrier Diodes (Surface Mount) 30V
SFPA-73
制造商:未知厂家 制造商全称:未知厂家 功能描述:Schottky Barrier Diodes