2.2SCSI Function Specifications
Table 2.4 shows the SCSI functions provided with the HDD.
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| Table 2.4 | SCSI function specifications |
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| Specification |
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| Ο | ||
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| HVD type (High Voltage Differential) |
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| ⋅ | |||
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Electrical | LVD type (Low Voltage Differential) |
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| Ο | |||
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requirements | Position where the terminating |
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(*1) | resistor is mounted on the PCA |
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| Differential type | Position where the terminating |
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| resistor is mounted on the PCA |
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| TERMPWR signal send function |
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| Ο (NP model) | |||
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Connector |
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| Ο (NP model) | |||
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| Ο (NC model) | ||||
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Data bus parity (Data bus CRC) |
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| Ο | ||
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Bus arbitration function |
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| Ο | |
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Disconnection/reconnection function |
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| Ο | ||
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| SCSI ID |
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| #0 to #15 | ||
Addressing |
| (Jumper selection, NP model) | |||||
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| LUN (logical unit number) |
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| #0 fixed | ||
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| Ο | 20 MB/s max. | |||||
Data transfer |
| (Ultra 2 type) |
| Ο | 40 MB/s max. | ||
Ο | 40 MB/s max. | ||||||
(Synchronous |
| (Ultra 2 Wide type) | Ο | 80 MB/s max. | |||
mode) (*2) |
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| (U160 LVD type) |
| Ο | 160 MB/s max. | |||
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| (U320 LVD type) |
| Ο | 320 MB/s max. | ||
Data buffer (*3) |
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| 8 MB | |
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Data block length (Logical data length=Physical data length) (*4) |
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| 512 to 528 bytes | ||||
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| (Fixed length) | |||||
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| Ο : | Provided | ⋅ : Not provided |
(*1) The driver mode
(*2) 1MB/s=1,000,000 bytes/s
(*3) 1MB=1,048,576 bytes
(*4) Refer to (13) of Section 1.1.
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