TS8G~16GCF600 |
| 600X CompactFlash Card | |||
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| Signal Name | Dir. | Pin | Description | |
O | 43 | This signal is not used in this mode. | |||
(PC Card Memory Mode except |
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Ultra DMA Protocol Active) |
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| The Input Acknowledge signal is asserted by the CompactFlash Storage Card | |
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| when the card is selected and responding to an I/O read cycle at the address | |||
(PC Card I/O Mode except Ultra |
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| that is on the address bus. This signal is used by the host to control the enable of | ||
DMA Protocol Active) |
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| any input data buffers between the CompactFlash Storage Card and the CPU. | ||
Input Acknowledge |
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| Hosts that support a single socket per interface logic, such as for Advanced | |
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| Timing Modes and Ultra DMA operation may ignore the | |
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| the device and manage their input buffers based solely on Card Enable signals. | |
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| This signal is a DMA Request that is used for DMA data transfers between host | |||
(PC Card Memory Mode |
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| and device. It shall be asserted by the device when it is ready to transfer data to | ||
DMA Protocol Active) |
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| or from the host. For Multiword DMA transfers, the direction of data transfer is | ||
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| controlled by | |||
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(PC Card I/O Mode |
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| negating | |||
Protocol Active) |
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| transfer. | |||
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DMARQ |
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| In PCMCIA I/O Mode, the | ||
(True IDE Mode) |
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| performing an I/O Read cycle to the device. The host shall not initiate an I/O | |
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| Read cycle while | |
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| In True IDE Mode, DMARQ shall not be driven when the device is not selected in | |
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| the | |
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| While a DMA operation is in progress, | |
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| held negated and the width of the transfers shall be 16 bits. | |
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| If there is no hardware support for True IDE DMA mode in the host, this output | |
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| signal is not used and should not be connected at the host. In this case, the | |
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| BIOS must report that DMA mode is not supported by the host so that device | |
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| drivers will not attempt DMA mode operation. | |
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| A host that does not support DMA mode and implements both PC Card and True | |
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| IDE modes of operation need not alter the PC Card mode connections while in | |
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| True IDE mode as long as this does not prevent proper operation in any mode. | |
I | 34 | This signal is not used in this mode. | |||
(PC Card Memory Mode except |
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Ultra DMA Protocol Active) |
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| This is an I/O Read strobe generated by the host. This signal gates I/O data onto | ||
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| the bus from the CompactFlash Storage Card when the card is configured to use | |||
(PC Card I/O Mode except Ultra |
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| the I/O interface. | ||
DMA Protocol Active) |
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| In True IDE Mode, while Ultra DMA mode is not active, this signal has the same | |||
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| function as in PC Card I/O Mode. | |||
(True IDE Mode – Except Ultra |
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DMA Protocol Active) |
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| In all modes when Ultra DMA mode DMA Read is active, this signal is asserted | ||
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| by the host to indicate that the host is ready to receive Ultra DMA | |||
(All Modes - Ultra DMA Protocol |
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| The host may negate – HDMARDY to pause an Ultra DMA transfer. | ||
DMA Read) |
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HSTROBE |
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| In all modes when Ultra DMA mode DMA Write is active, this signal is the data | ||
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(All Modes - Ultra DMA Protocol |
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| out strobe generated by the host. Both the rising and falling edge of HSTROBE | ||
DMA Write) |
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| cause data to be latched by the device. The host may stop generating | ||
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| HSTROBE edges to pause an Ultra DMA | |
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Transcend Information Inc. |
| 11 |
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| V1.0 |