TS1G~32GCF133 |
| 133X CompactFlash Card | |||
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| Signal Name | Dir. | Pin | Description | |
| I | 35 | This signal is not used in this mode. | ||
(PC Card Memory Mode) |
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| The I/O Write strobe pulse is used to clock I/O data on the Card Data bus into the | |||
(PC Card I/O Mode) |
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| CompactFlash Storage Card controller registers when the CompactFlash | ||
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| Storage Card is configured to use the I/O interface. | |
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| The clocking shall occur on the negative to positive edge of the signal (trailing | |
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| edge). | |
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| In True IDE Mode, while Ultra DMA mode protocol is not active, this signal has | |||
(True IDE Mode – Except |
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| the same function as in PC Card I/O Mode. When Ultra DMA mode protocol is | ||
Ultra DMA Protocol Active) |
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| supported, this signal must be negated before entering Ultra DMA mode | ||
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| protocol. | |
STOP |
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| In True IDE Mode, while Ultra DMA mode protocol is active, the assertion of this | ||
(True IDE Mode – Ultra DMA |
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| signal causes the termination of the Ultra DMA burst. | ||
Protocol Active) |
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I | 9 | This is an Output Enable strobe generated by the host interface. It is used to read | |||
(PC Card Memory Mode) |
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| data from the CompactFlash Storage Card in Memory Mode and to read the CIS | ||
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| and configuration registers. | |
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| In PC Card I/O Mode, this signal is used to read the CIS and configuration | |||
(PC Card I/O Mode) |
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| registers. | ||
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| To enable True IDE Mode this input should be grounded by the host. | |||
(True IDE Mode) |
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READY | O | 37 | In Memory Mode, this signal is set high when the CompactFlash Storage Card is | ||
(PC Card Memory Mode) |
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| ready to accept a new data transfer operation and is held low when the card is | ||
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| busy. | |
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| At power up and at Reset, the READY signal is held low (busy) until the | |
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| CompactFlash Storage Card has completed its power up or reset function. No | |
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| access of any type should be made to the CompactFlash Storage Card during | |
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| this time. | |
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| Note, however, that when a card is powered up and used with RESET | |
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| continuously disconnected or asserted, the Reset function of the RESET pin is | |
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| disabled. Consequently, the continuous assertion of RESET from the application | |
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| of power shall not cause the READY signal to remain continuously in the busy | |
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| state. | |
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| I/O Operation – After the CompactFlash Storage Card Card has been configured | ||
(PC Card I/O Mode) |
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| for I/O operation, this signal is used as | ||
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| low to generate a pulse mode interrupt or held low for a level mode interrupt. | |
INTRQ |
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| In True IDE Mode signal is the active high Interrupt Request to the host. | ||
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(True IDE Mode) |
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Transcend Information Inc. | 9 |
