Figure 3-25. Am64X/Am243X Pcie Interface; Table 3-22. Pcie Jumper Options To Enable Root Complex And Endpoint Mode; Table 3-23. Pcie Connector (J27) Pin-Out - Texas Instruments AM64x User Manual

System Description
Table 3-22 describes the jumper options used to select if the EVM will operate in Root Complex mode or in End
Point mode.

Table 3-22. PCIe Jumper Options to Enable Root Complex and Endpoint Mode

1x3 header J34 and J35
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
44 AM64x/AM243x EVM User's Guide
Root Complex
Short 1 and 2

Figure 3-25. AM64x/AM243x PCIe Interface

Table 3-23. PCIe Connector (J27) Pin-out

Side A of PCIe
Connector GP Board Signal
PRSNT1#
+12V VDD_12V
+12V VDD_12V
GND GROUND
JTAG2
JTAG3
JTAG4
JTAG5
+3V3 VCC3V3_SYS
+3V3 VCC3V3_SYS
PERST#
GND GROUND
REFCLK+ SERDES_REFCLK0P
REFCLK- SERDER_REFCLK0N
GND GROUND
PERp0 SERDES_RXP0
PERn0 SERDES_RXN0
GND GROUND
RSVD1
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End Point
Short 2 and 3
Side B of PCIe
Connector
J35.3 +12V
+12V
+12V
GND
TP SMCLK
TP SMDATA
TP GND
TP +3V3
JTAG1
3V3 VAUX
J24.2 WAKE#
RSVD4
GND
PETp0
PETn0
GND
PRSNT2#_1
GND
NC PETp1
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GP Board Signal
VDD_12V
VDD_12V
VDD_12V
GROUND
SoC_I2C1_CLK
SoC_I2C1_SDA
GROUND
VCC3V3_SYS
TP
VCC3V3_SYS
Pulled up to
VCC3V3_SYS
Pulled up to
VCC3V3_SYS
GROUND
SERDES_TXP0
SERDES_TXN0
GND
J35.2
GROUND
NC
SPRUJ63 – SEPTEMBER 2022
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