|
2 o o o o o o o o o o 20 1 o o o o o o o o o o 19 |
| Сигнал | Номер контакта |
| AC EJECT* | 1 |
| LED PIPE* | 2 |
| PWRDNREQ* | 3 |
| DRIVE SENSE | 4 |
| TERMPWR | 5 |
| TERMPWR SRC | 6 |
| PWRDNACK* | 7 |
| ERROR* | 8 |
| STANDALONE/AC | 9 |
| CART_IN_DRIVE* | 10 |
| AC RESET* | 11 |
| CART_LOADED* | 12 |
| SCSI PARITY | 13 |
| GND | 14 |
| SCSI ID2 | 15 |
| GND | 16 |
| SCSI ID1 | 17 |
| GND | 18 |
| SCSI ID0 | 19 |
| GND | 20 |
* Valid only when pin 9 is asserted (low)
А дальше я вообще переводить не буду ввиду ничтожной вероятности практического применения этой информации!
OPTICAL DRIVE INTERFACE INFORMATION
AUTOCHANGER INTERFACE PIN ASSIGNMENTS
| Signals | Description |
| AC EJECT | This signal instructs the drive to eject the media to the proper eject position. This signal is driven active low by the autochanger and pulled up to 5 volts by the drive. |
| AC RESET | This signal instructs the drive to perform a hard reset and update the SCSI ID at which it is operating. This signal is driven active low by the autochanger and pulled up to 5 volts by the drive. While this signal is asserted during powerup, the drive ignores all input signals from the autochanger and load sensor. When this signal is used to reset the controller, it should be asserted for no more than 10 ms. |
| CART IN DRIVE. | This signal indicates whether a cartridge exists in the driveloader mechanism. The cartridge may or may not be loaded on the hub and spinning. The signal is driven active low by the drive and pulled up to 5 volts by the autochanger. This signal is a software debounced version of the drive load sensor. |
| CART LOADED | This signal indicates whether a cartridge exists in the driveloader mechanism. The cartridge may or may not be loaded on the hub and spinning. The signal is driven active low by the drive and pulled up to 5 volts by the autochanger. This signal is a software debounced version of the drive load sensor. |
| DRIVE SENSE | This signal is pulled up on the autochanger controller and is grounded when a drive is plugged into the autochanger controller. |
| ERROR | This signal indicates a mechanical error was detected within the drive. The autochanger utilizes this signal to detect when the drive is unable to load or eject media due to a hardware error. The signal is driven active low by the drive and pulled up to 5 volts by the autochanger. |
| GROUND | This signal is connected to the logic ground on both the autochanger and the drive controller to provide a ground reference across the cable. |
| LED PIPE | This signal is a representation of the drive's front panel activity indicator LED, so the LED can be displayed on the autochanger front panel. |
| PWRDNREQ | A signal from a host that power has failed and a request that data in the write buffer be transferred to the disk. |
| PWRDNACK | A signal from the drive in response to a PWRDNREQ after the data in the write buffer has been transferred to the disk |
| SCSI ID | The SCSI ID encompasses three signals: ID0, ID1, and ID2. These signals indicate the SCSI ID with which it should be operating. All three signals are driven active low by the autochanger and pulled up to 5 volts by the drive. |
| SCSI PARITY | This signal informs the drive that SCSI parity is performed by the drive. |
| STANDALONE/AC | This signal informs the drive as to whether it is operating in the standalone environment, or within an autochanger. This signal is connected to ground within the autochanger and pulled up to 5 volts in the drive. The signal is, therefore, defined as standalone=HIGH, autochanger= LOW. |
| TERMPWR | This signal indicates the SCSI bus TERMPOWER line. |
Максим Осташов
Размещено на www.s12most.mailru.com 6 апреля 2001
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