Table 4: SOM240_1 Signal Pins (cont'd)
Pin Number
Signal Name
Signal Description
D18
HDA02
HDIO on bank 45
D19
GND
Ground
D20
HDA12
HDIO on bank 45
D21
HDA13
HDIO on bank 45
D22
HDA14
HDIO on bank 45
D23
GND
Ground
D24
PWRGD_FPD_M2C
Power good indication for PS FPD power rails
D25
PWRGD_LPD_M2C
Power good indication for PS LPD power rails
D26
PWRGD_PL_M2C
Power good indication for all PL power rails
D27
GND
Ground
D28
MIO26
PS MIO signal on bank 501. Optional use as PMU input.
D29
MIO27
PS MIO signal on bank 501. Optional use as PMU input.
D30
MIO28
PS MIO signal on bank 501. Optional use as PMU input.
D31
GND
Ground
D32
MIO44
PS MIO signal on bank 501
D33
MIO45
PS MIO signal on bank 501
D34
MIO46
PS MIO signal on bank 501
D35
GND
Ground
D36
MIO52
PS MIO signal on bank 502
D37
MIO53
PS MIO signal on bank 502
D38
MIO54
PS MIO signal on bank 502
D39
GND
Ground
D40
MIO64
PS MIO signal on bank 502
D41
MIO65
PS MIO signal on bank 502
D42
MIO66
PS MIO signal on bank 502
D43
GND
Ground
D44
MIO76
PS MIO signal on bank 502
D45
MIO77
PS MIO signal on bank 502
D46
Reserved
No connect on the SOM
D47
GND
Ground
D48
GND
Ground
D49
GTR_DP3_C2M_P
PS-GTR lane 3 RX
D50
GTR_DP3_C2M_N
PS-GTR lane 3 RX
D51
GND
Ground
D52
GND
Ground
D53
GTR_REFCLK2_C2M_P
PS-GTR REFCLK2 input
D54
GTR_REFCLK2_C2M_N
PS-GTR REFCLK2 input
D55
GND
Ground
D56
GND
Ground
Chapter 2: Electrical Design Considerations
UG1091 (v1.0) April 20, 2021
Carrier Card Design for Kria SOM
16