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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： | 27/103页 |
| 文件大小： | 466K |
| 代理商： | HB28H016RM2 |
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The addresses at which these registers are located are changed by settings in the configuration
option register in the attribute region. The operating mode and interface pin functions are also
changed.
There are four operating modes, selected by a setting in the configuration option register.
Memory mode
Primary I/O mode
Secondary I/O mode
Contiguous I/O mode
The basic handling is the same in the primary, secondary, and contiguous I/O modes, the only
differences being in the mapping of the task file registers. There are thus basically two operating
modes, memory mode and I/O mode. These are described in sections 3.3 and 3.4.
3.3
Memory Mode
Both PC-ATA cards and CF enter memory mode at power-on or in a hardware reset. Therefore,
while no particular settings are required concerning the operating mode, it is preferable to make
settings in the configuration option register. The configuration option register settings shown in
table 3.4 place the card in memory mode.
In memory mode, read and write operations are performed by controlling
WE
and
OE
. At this
time,
IORD
and
IOWR
must be held high. This mode is useful when driving a card using a CPU
with no
IORD
and
IOWR
signals, a CISC microcomputer, or a RISC microcomputer. When using
a microcomputer that has
IORD
and
IOWR
signals and is capable of control by IN/OUT
instructions, it may be more convenient to use I/O mode.
The pin interface in memory mode is shown in tables 3.7 and 3.8.
For the method of accessing the registers, and timing details, see tables 3.4 to 3.6, etc.
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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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