Internal Interfaces; Overview Of Internal Interfaces; Pcie Interface - Siemens simatic ipc227e Operating Instructions Manual

7.5.3

Internal interfaces

7.5.3.1

Overview of internal interfaces

Interface
PCIe x1
7.5.3.2

PCIe interface

Assignment of the PCIe x1 interface
Pin no.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
SIMATIC IPC227E
Operating Instructions, 11/2016, A5E35782395-AB
Position
Internal
Side B
Name Description
+12 V 12 V power
+12 V 12 V power
+12 V 12 V power
GND Ground
SMCLK SMBUS (System Man-
agement Bus) clock
SMDAT SMBus (System Man-
agement Bus) data
GND Ground
+3.3 V 3.3 V power
JTAG1 TRST# (Test Reset)
resets the JTAG interface
3.3 Vaux 3.3 V auxiliary power
WAKE# Signal for link reactivation PERST#
RSVD Reserved
GND Ground
PETp0 Transmitter differential
pair, Lane 0
PETn0 Transmitter differential
pair, Lane 0
GND Ground
PRSNT2# Hot-plug presence detect PERn0
GND Ground
7.5 Hardware descriptions
Connector Description
PCIe x1 interface
Side A
Name Description
PRSNT1# Hot-plug presence detect
+12 V 12 V power
+12 V 12 V power
GND Ground
JTAG2 TCK (Test Clock), clock
input for JTAG interface
JTAG3 TDI (Test Data Input)
JTAG4 TDO (Test Data Output)
JTAG5 TMS (Test Mode Select)
+3.3 V 3.3 V power
+3.3 V 3.3 V power
Fundamental reset
GND Ground
REFCLK+ Reference clock (differential
pair)
REFCLK- Reference clock (differential
pair)
GND Ground
PERp0 Receiver differential pair,
Lane 0
Receiver differential pair,
Lane 0
GND Ground
Technical specifications
113