5K320 SATA OEM Specification
7.3Signal definitions
The pin assignments of interface signals are listed as follows:
| No. |
| Plug Connector pin definition | Signal | I/O |
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| S1 | GND | 2nd mate | Gnd |
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| S2 | A+ | Differential signal A from Phy | RX+ | Input |
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| S3 | A- |
| RX- | Input |
Signal |
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S4 | Gnd | 2nd mate | Gnd |
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| S5 | B- | Differential signal B from Phy | TX- | Output |
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| S6 | B+ |
| TX+ | Output |
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| S7 | Gnd | 2nd mate | Gnd |
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| Key and spacing separate signal and power |
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| segments |
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| P1 | V33 | 3.3V power | 3.3V |
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| P2 | V33 | 3.3V power | 3.3V |
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| P3 | V33 | 3.3V power, | 3.3V |
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| P4 | Gnd | 1st mate | Gnd |
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| P5 | Gnd | 2nd mate | Gnd |
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| P6 | Gnd | 2nd mate | Gnd |
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| P7 | V5 | 5V | 5V |
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| P8 | V5 | 5V power | 5V |
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Power |
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P9 | V5 | 5V power | 5V |
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| P10 | Gnd | 2nd mate | Gnd |
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| P11 | DAS/DSS | Device Activity Signal / Disable Staggered | Note 1 |
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| Spinup 1 |
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| P12 | Gnd | 1st mate | Gnd |
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| P13 | V12 | 12V | V12 |
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| P14 | V12 | 12V power | V12 |
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| P15 | V12 | 12V power | V12 |
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Table 23. Interface connector pins and I/O signals
Note 1;
Pin P11 is used by the drive to provide the host with an activity indication and by the host to indicate whether staggered spinup should be used.
The signal the drive provides for activity indication is a
If pin P11 is asserted low the drive shall disable staggered
7.3.1TX+ / TX-
These signal are the outbound
7.3.2RX+ / RX-
These signals are the inbound
The following standard shall be referenced about signal specifications.
Serial ATA: High Speed Serialized AT Attachment Revision 1.0a
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