Technical information

Technical Information • SCS-TRUMPET • CPU Expansion Side Card

PCIE

The high speed expansion socket PCIE is mounted on bottom of the SCS-TRUMPET. This allows to

attach the mezzanine companion card on top of the CPU carrier board. A mating strip line spacer PCB

(C22-PCIEX2) is used in addition to bridge the gap between the two boards, which results from the

horizontal 0.8-inch (20.32mm) card slot pitch.

PCIE must be organized as 4 links by 1 lane each (i.e. 4 single PCI Express® lanes). Check

the CPU carrier card PCIE DIP-switch settings for proper configuration (DSW1.1 = OFF,

DSW1.2 = ON).

PCIE • PCI Express x 4

High Speed Dual Row Socket 0.8mm Pitch 290.1.040.080

pin assignment shows CPU carrier

board top view (see-trough mezzanine

side board PCB)

switched on/off power lines on CPU

carrier boards according to S3 state

GND 1 2 GND

+5V_CR

34 +3.3V_CR

+5V_CR

56 +3.3V_CR

GND 7 8 GND

PE_CLKP 9 10 PLTRST#

PE_CLKN 11 12 PE_WAKE#

GND 13 14 GND

PE0_TP 15 16 PE0_RP

PE0_TN 17 18 PE0_RN

GND 19 20 GND

GND 21 22 GND

PE1_TP 23 24 PE1_RP

PE1_TN 25 26 PE1_RN

GND 27 28 GND

PE2_TP 29 30 PE2_RP

PE2_TN 31 32 PE2_RN

GND 33 34 GND

PE3_TP 35 36 PE3_RP

PE3_TN 37 38 PE3_RN

GND 39 40 NC

Supply voltages from carrier board, switched on/off according to sleep state

The CPU card PC2-LIMBO provides only one PCIe® lane via this mezzanine connector. For this case,

rear I/O dedicated PCIe® devices (2 x SATA, 1 x USB controllers) are not connected to the CPU.

Nevertheless the front panel USB 3.0 jacks can be used in this configuration since the associated USB

controller is wired to to the single available PCIe® lane.

160.15.02.0

PCI Express x 4

High Speed Socket Connector

Top View on CPU Carrier Board