diff --git a/litex_boards/platforms/trellisboard.py b/litex_boards/platforms/trellisboard.py
index 03b780b..c79f520 100644
--- a/litex_boards/platforms/trellisboard.py
+++ b/litex_boards/platforms/trellisboard.py
@@ -209,9 +209,35 @@ _connectors = [
     ("ext0", "T1 U1 AE5 AE4 AB5 AB6 Y5 W5 W2 Y1 AB7 AC6 AB3 AB4 AD3 AE3 AB1 AC1 AD1 AE1 AD6 AE6 AC7 AD7"),
     ("ext1", "P5 P4 R7 T7 R6 T6 U6 U7 R4 T5 T4 U5 U4 V4 V6 V7 P2 P3 R3 T3 N1 P1 U2 U3"),
     ("ext2", "K6 K7 J7 J6 H6 H5 F4 F5 F3 E3 C4 C3 C5 D5 D3 D2 H2 H3 J3 K3 B1 C2 F1 H1")
-
 ]
 
+
+# PMODS --------------------------------------------------------------------------------------------
+
+def sdcard_pmod_io(pmod):
+    return [
+        # SDCard PMOD:
+        # - https://store.digilentinc.com/pmod-microsd-microsd-card-slot/
+        # - https://github.com/antmicro/arty-expansion-board
+        ("spisdcard", 0,
+            Subsignal("clk",  Pins(f"{pmod}:3")),
+            Subsignal("mosi", Pins(f"{pmod}:1"), Misc("PULLMODE=UP")),
+            Subsignal("cs_n", Pins(f"{pmod}:0"), Misc("PULLMODE=UP")),
+            Subsignal("miso", Pins(f"{pmod}:2"), Misc("PULLMODE=UP")),
+            Misc("SLEWRATE=FAST"),
+            IOStandard("LVCMOS33"),
+        ),
+        ("sdcard", 0,
+            Subsignal("data", Pins(f"{pmod}:2 {pmod}:4 {pmod}:5 {pmod}:0"), Misc("PULLMODE=UP")),
+            Subsignal("cmd",  Pins(f"{pmod}:1"), Misc("PULLMODE=UP")),
+            Subsignal("clk",  Pins(f"{pmod}:3")),
+            Subsignal("cd",   Pins(f"{pmod}:6")),
+            Misc("SLEWRATE=FAST"),
+            IOStandard("LVCMOS33"),
+        ),
+]
+_sdcard_pmod_io = sdcard_pmod_io("pmoda") # SDCARD PMOD on PMODA.
+
 # Platform -----------------------------------------------------------------------------------------
 
 class Platform(LatticePlatform):