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| 型号： | HB28H016RM2 |
| 英文描述： | IC Memory CompactFlash /PC-ATA Standard Users Manual/Device |
| 中文描述： | 集成电路记忆的CompactFlash / PC的ATA标准用户手册/设备 |
| 文件页数： | 21/103页 |
| 文件大小： | 466K |
| 代理商： | HB28H016RM2 |
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15
3.2
Card Register Configuration
Flash memory card data is accessed via registers, as in the case of hard disk drives, etc. The actual
operations can be itemized as read/write operations, mode setting, card attribute acquisition, and
so on. Broadly speaking, PC-ATA cards and CF can operate in accordance with (1) PC-ATA
specifications or (2) True-IDE specifications. This section and sections 3.3 and 3.4 are concerned
with the PC-ATA specifications. For use of a PC-ATA card or CF in PC-ATA mode, continue
reading from here. If the card is to be handled in accordance with the True-IDE specifications,
skip forward to section 3.5.
(Switching between PC-ATA mode and the True-IDE specifications depends on how the flash
card input pins are set at power-on. Once the card has been started up in a particular mode, it
cannot be switched unless the power is turned on again. This problem is discussed in section 4.)
When the card is handled in accordance with the True-IDE specifications, the control registers can
be broadly divided into two regions. One is the attribute region, used to set and manage the
operating mode and store the card attributes, and the other is the task file region, used for data
write and read instructions.
Attribute Region:
The attribute region consists of a configuration register section for setting and
managing the operation status of the card, and a CIS section for storing card attribute information,
located in the address spaces shown below. The configuration register section is further subdivided
into four registers.
The register names are shown below.
Register names
Configuration register section (configuration registers: 200h–206h)
Configuration option register (address 200h in attribute memory)
Configuration and status register (address 202h in attribute memory)
Pin replacement register (address 204h in attribute memory)
Socket and copy register (address 206h in attribute memory)
CIS section (card information structure: 000h–168h in attribute memory)
Note:
The minimum register requirements are described in section 4. For details, see the
appendices.
When a card is mounted in a system by insertion in a PC card slot, it is first necessary to determine
what the inserted card is. Then settings appropriate to the card must be made.
First, the CIS section must be accessed to find out what kind of card has been inserted. The CIS
section contains essential information concerning the card, such as the settings that should be
made, the operating voltage, and the addresses at which the registers that perform card
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HB2A102K-S265B | 制造商:Hitano Enterprise Corp 功能描述:Bulk |
| HB2A102K-S565B | 制造商:Hitano Enterprise Corp 功能描述:Bulk |
| HB2A103K-S565B | 制造商:Hitano Enterprise Corp 功能描述: |
| HB2A122K-S265B | 制造商:Hitano Enterprise Corp 功能描述: |
| HB2A122K-S565B | 制造商:Hitano Enterprise Corp 功能描述:Bulk |
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