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ECA-5540 User Manual
B7
GND
B8
CPUPETP2
B9
CPUPETN2
B10
GND
B11
CPUPETP3
B12
CPUPETN3
B13
GND
B14
CPUPETP0
B15
CPUPETN0
B16
GND
B17
CPUPETP0
B18
CPUPETN0
B19
GND
B20
CPUPETP1
B21
CPUPETN1
B22
GND
B23
CPUPETP2
B24
CPUPETN2
B25
GND
B26
CPUPETP3
B27
CPUPETN3
B28
GND
B29
PWR_ON_N
B30
PWR_ON_N
B31
GND
B32
PWRFL_N
B33
PWRFL_N
B34
GND
B35
PRSNTB_N
B36
PERST_N
B37
GND
B38
GND
B39
GND
19. MCIO4: U.2 X8 Connector
Pin #
Description
B1
GND
B2
REFCLK+
B3
REFCLK-
B4
GND
B5
CPUPETP1
A7
GND
A8
CPUPERP3
A9
CPUPERN3
A10
GND
A11
CPUPERP0
A12
CPUPERN0
A13
GND
A14
CPUPERP0
A15
CPUPERN0
A16
GND
A17
CPUPERP1
A18
CPUPERN1
A19
GND
A20
CPUPERP2
A21
CPUPERN2
A22
GND
A23
CPUPERP3
A24
CPUPERN3
A25
GND
A26
REFCLK+
A27
REFCLK-
A28
GND
A29
SMB_SCL
A30
SMB_CDA
A31
GND
A32
WAKE#
A33
PRSNTB_N
A34
GND
A35
+P3V3_AUX
A36
+P3V3_AUX
A37
GND
HM2
GND
HM4
GND
Pin #
Description
A1
GND
A2
CPUPERP1
A3
CPUPERN1
A4
GND
A5
CPUPERP2
23
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