Transceiver Mode | The current bus mode: | |
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| Code | Bus Mode |
| 00b | Unknown |
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| 01b | SE |
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| 10b | LVD |
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| 11b | HVD (Note that this will never be reported since the drive will |
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| not operate on an HVD bus) |
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Sent PCOMP_EN | The value of the PCOMP_EN bit sent. This will be set if PCOMP_EN has | |
| been negotiated successfully. | |
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Received PCOMP_EN | The value of the PCOMP_EN bit received. This will be set if PCOMP_EN has | |
| been negotiated successfully. | |
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| 7 | 6 | 5 |
| 4 | 3 | 2 | 1 | 0 |
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| 0 |
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| Minimum Transfer Period Factor (08h) |
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| 1 |
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| Reserved (0) |
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| 2 |
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| Maximum |
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| 3 |
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| Maximum transfer Width Exponent (1) |
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| 4 |
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| Protocol Option Bits Supported (C3h) |
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| 5 |
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| Reserved (0) |
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| 7 |
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| Minimum Transfer Period Factor 08h | The smallest value of the transfer period factor supported. For | |||||||||
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| Gen 3 SCSI, this is 8, in other words, FAST160. |
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| Maximum Req/Ack Offset | 40h | The maximum value for the Req/Ack offset. For Gen 3 SCSI, this | ||||||||
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| Maximum Transfer Width | 1 The maximum width supported. For Gen 3 SCSI, this is 1. | |||||||||
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Protocol Option Bits Supported C3h. The protocol options supported. The value of C3h indicates that PCOMP_EN, RTI, DT_REQ and IU_REQ are supported and RD_STRM, WR_FLOW, HOLD_MCS and QAS_REQ are not.
See the Protocol Options Bits field on
90 Commands