![background image](http://html1.mh-extra.com/html/xilinx/kria-k26-som/kria-k26-som_design-manual_3372861013.webp)
Table 4: SOM240_1 Signal Pins (cont'd)
Pin Number
Signal Name
Signal Description
B25
PS_ERROR_STATUS_M2C
PS error status from SOM
B26
PWROFF_C2M_L
Control signal to turn off all power rails on the SOM
B27
GND
Ground
B28
MIO35
PS MIO signal on bank 501. Optional use as PMU output.
B29
MIO36
PS MIO signal on bank 501
B30
MIO37
PS MIO signal on bank 501
B31
GND
Ground
B32
MIO38
PS MIO signal on bank 501
B33
MIO39
PS MIO signal on bank 501
B34
MIO40
PS MIO signal on bank 501
B35
GND
Ground
B36
MIO50
PS MIO signal on bank 501
B37
MIO51
PS MIO signal on bank 501
B38
Reserved
Not connected to SOM connector
B39
GND
Ground
B40
MIO58
PS MIO signal on bank 502
B41
MIO59
PS MIO signal on bank 502
B42
MIO60
PS MIO signal on bank 502
B43
GND
Ground
B44
MIO70
PS MIO signal on bank 502
B45
MIO71
PS MIO signal on bank 502
B46
MIO72
PS MIO signal on bank 502
B47
GND
Ground
B48
GND
Ground
B49
GTR_REFCLK1_C2M_P
PS-GTR REFCLK1 input
B50
GTR_REFCLK1_C2M_N
PS-GTR REFCLK1 input
B51
GND
Ground
B52
GND
Ground
B53
GTR_DP2_C2M_P
PS-GTR lane 2 RX
B54
GTR_DP2_C2M_N
PS-GTR lane 2 RX
B55
GND
Ground
B56
GND
Ground
B57
GTR_DP0_M2C_P
PS-GTR lane 0 TX
B58
GTR_DP0_M2C_N
PS-GTR lane 0 TX
B59
GND
Ground
B60
VCC_SOM
SOM main supply voltage, +5V
Connector Row C
C1
GND
Ground
C2
GND
Ground
Chapter 2: Electrical Design Considerations
UG1091 (v1.0) April 20, 2021
Carrier Card Design for Kria SOM
13