3.2.2 The SCSI Interface
The SCSI interface conforms to ANSI X 3T10.11/1142. The SCSI interface operates as
Connector J2 makes the external connection, which provides LVD/SE SCSI termination. Connector J4 makes the internal connection, which only provides LVD SCSI termination.
Table 3.4 shows the signal assignments for J2 and J4.
Table 3.4 SCSI Interface
Signal Name | Pin | Signal Name | Pin | Signal Name | Pin |
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SD12+ | 1 | SACK+ | 24 | SD7− | 47 |
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SD13+ | 2 | SRST+ | 25 | SDP− | 48 |
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SD14+ | 3 | SMSG+ | 26 | GND | 49 |
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SD15+ | 4 | SSEL+ | 27 | Cable_prnt | 50 |
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SDP1+ | 5 | SC_D+ | 28 | TERMPWR | 51 |
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SD0+ | 6 | SREQ+ | 29 | TERMPWR | 52 |
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SD1+ | 7 | SI_O+ | 30 | N/C | 53 |
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SD2+ | 8 | SD8+ | 31 | GND | 54 |
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SD3+ | 9 | SD9+ | 32 | SATN− | 55 |
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SD4+ | 10 | SD10+ | 33 | GND | 56 |
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SD5+ | 11 | SD11+ | 34 | SBSY− | 57 |
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SD6+ | 12 | SD12− | 35 | SACK− | 58 |
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SD7+ | 13 | SD13− | 36 | SRST− | 59 |
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SDP+ | 14 | SD14− | 37 | SMSG− | 60 |
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GND | 15 | SD15− | 38 | SSEL− | 61 |
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DIFFSENS | 16 | SDP1− | 39 | SC_D− | 62 |
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TERMPWR | 17 | SD0− | 40 | SREQ− | 63 |
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TERMPWR | 18 | SD1− | 41 | SI_O− | 64 |
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N/C | 19 | SD2− | 42 | SD8− | 65 |
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GND | 20 | SD3− | 43 | SD9− | 66 |
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SATN+ | 21 | SD4− | 44 | SD10− | 67 |
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GND | 22 | SD5− | 45 | SD11− | 68 |
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SBSY+ | 23 | SD6− | 46 |
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Operational Environment |
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Copyright © 2001 by LSI Logic Corporation. All rights reserved.