Peripherals 6
miriac SBC-LS1043A2 User Manual
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© MicroSys Electronics GmbH 2017
6.4.4 PCIe Extension Connector 2
The PCIe Extension Connectors “ST9” and “ST11” provide basic PCIe signals.
They have identical pinouts providing power, data, clock, reset and I²C signals.
Depending on the module and software configuration the data signals can also be
used for other interfaces according to the SerDes configuration of the respective
module.
The extension connectors interface the CRX05 carrier board with any specially
developed adapter. No standard pinout is used.
Part Reference:
ST11
Manufacturer:
Würth Elektronik
Type:
687 118 140 22
Mates with:
FFC cable, 18pins,
pitch 0.5mm
The I2C port is accessible via I2C Bus 2 and the I2C multiplexer TCA9544A (address
0x70). See chapter 5.9.2 for more information.
Devices connected to ST9 and ST11 share channel 3.
Pin:
1
+3.3V
2
+3.3V
3
+3.3V
4
+1.5V
5
GND
6
REFCLK-
7
8
GND
9
PER0-
10
PER0+
11
GND
12
PET0-
13
PET0+
14
GND
15
I2C2D-SCL
16
I2C2D-SDA
17
GND
18
PERST#
Table 6-14 PCIe Extension connector pinout (ST11)
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