User’s Manual
2.4.3.1Signal Description – ETX Express Connector 2 (CN1B) 2.4.3.1.1 IDE Signals
| Signal |
| Signal Description | |
| IDE_D[0:15] |
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| Bidirectional data to / from IDE device. |
| IDE_A[0:2] |
| Address lines to IDE device. | |
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| IDE_REQ# |
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| IDE Device DMA Request. It is asserted by the IDE device to request a data |
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| transfer. | |
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| IDE_IOW# |
| I/O write line to IDE device. Data latched on trailing (rising) edge. | |
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| IDE_ACK# |
| IDE Device DMA Acknowledge. | |
| IDE_IRQ | Interrupt request from IDE device. | ||
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| IDE_IORDY |
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| IDE device I/O ready input. Pulled low by the IDE device to extend the cycle. |
| IDE_IOR# |
| I/O read line to IDE device. | |
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| IDE_CS1# |
| IDE Device Chip Select for 1F0h to 1FFh range. | |
| IDE_CS3# |
| IDE Device Chip Select for 3F0h to 3FFhrange. | |
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| IDE_RESET# |
| Reset output to IDE device, active low. | |
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