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Chapter 3 Hardware
XTX 820 Reference Manual 33
Pin # Signal Description
17 PCIE3_RX- PCI Express Lane 3, Receive Input, Negative Differential Line
18 SATA1_RX- Serial ATA Channel 1, Receive Input, Negative Differential Line
19 VCC DC Power – +5 VDC, ±5%
20 5V_SB +5 Volt Standby – Additional suspend voltage.
21 EXC1_CPPE* ExpressCard (capable card) Request Slot 2
22 SATA1_TX- Serial ATA Channel 1, Transmit Output, Negative Differential Line
23 EXC1_RST# ExpressCard Reset Slot 2
24 SATA1_TX+ Serial ATA Channel 1, Transmit Output, Positive Differential Line
25 USBP5+ Universal Serial Bus Port 5, Positive Differential Line
26 GND Ground
27 USBP5- Universal Serial Bus Port 5, Negative Differential Line
28 SATA2_RX+ Serial ATA Channel 2, Receive Input, Positive Differential Line
29 GND Ground
30 SATA2_RX- Serial ATA Channel 2, Receive Input, Negative Differential Line
31 PCIE2_TX+ PCI Express Lane 2, Transmit Output, Positive Differential Line
32 SUS_STAT* Suspend Status
33 PCIE2_TX- PCI Express Lane 2, Transmit Output, Negative Differential Line
34 NC Not Connected - RESERVED
35, 36 GND Ground
37 PCIE2_RX+ PCI Express Lane 2, Receive Input, Positive Differential Line
38 SATA2_TX- Serial ATA Channel 2, Transmit Output, Negative Differential Line
39 PCIE2_RX- PCI Express Lane 2, Receive Input, Negative Differential Line
40 SATA2_TX+ Serial ATA Channel 2, Transmit Output, Positive Differential Line
41 EXC0_CPPE* ExpressCard (capable card) Request Slot 1
42 GND Ground
43 EXC0_RST* ExpressCard Reset Slot 1
44 SATA3_RX+ Serial ATA Channel 3, Receive Input, Positive Differential Line
45 USBP4+ Universal Serial Bus Port 4, Positive Differential Line
46 SATA3_RX- Serial ATA Channel 3, Receive Input, Negative Differential Line
47 USBP4- Universal Serial Bus Port 4, Negative Differential Line
48 WDTRIG Watch Dog Trigger input
49 SLP_S3* S3 (Suspend to RAM) Sleep Control
50 SATALED* Serial ATA activity LED
51, 52 VCC DC Power – +5 VDC, ±5%
53 PCIE1_RX- PCI Express Lane 1, Receive Input, Negative Differential Line
54 SATA3_TX- Serial ATA Channel 3, Transmit Output, Negative Differential Line
55 PCIE1_RX+ PCI Express Lane 1, Receive Input, Positive Differential Line
56 SATA3_TX+ Serial ATA Channel 3, Transmit Output, Positive Differential Line
57 GND Ground
58 IL_SATA* Serial ATA Interlock Switch Input