Seco Qseven Q7-974 User Manual page 31

3.2.3.4 S-ATA signals
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Intel Atom E38xx SOCs offer two S-ATA interfaces. One of them is always carried out on the golden finger connector. The other interface is optional; it is
available only in case the module purchased doesn't have an embedded SATA Flash Disk onboard.
The interfaces are SATA II, with support of 1.5Gbps and 3.0 Gbps data rates
Here following the signals related to SATA interface:
SATA0_TX+/SATA0_TX-: Serial ATA Channel #0 Transmit differential pair
SATA0_RX+/SATA0_RX-: Serial ATA Channel #0 Receive differential pair
SATA1_TX+/SATA1_TX-: Serial ATA Channel #1 Transmit differential pair (optional, factory alternative to embedded SSD).
SATA1_RX+/SATA1_RX-: Serial ATA Channel #1 Receive differential pair (optional, factory alternative to embedded SSD).
SATA_ACT#: Serial ATA Activity Led. Active low output signal at +3.3V_S voltage.
10nF AC series decoupling capacitors are placed on each line of SATA differential pairs.
On the carrier board, these signals can be carried out directly to the SATA connector.
Q7-974
Q7-974 User Manual - Rev. First Edition: 0.1 - Last Edition: 2.3 - Author: S.B. - Reviewed by G.G. Copyright © 2017 SECO S.r.l.
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