diff --git a/ist.json b/ist.json
new file mode 100644
index 0000000..9ddf2b0
--- /dev/null
+++ b/ist.json
@@ -0,0 +1,58 @@
+{
+    "target": "kasli",
+    "variant": "ist",
+    "hw_rev": "v1.1",
+    "base": "standalone",
+    "peripherals": [
+        {
+            "type": "dio",
+            "ports": [0],
+            "bank_direction_low": "output",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "dio",
+            "ports": [1],
+            "bank_direction_low": "output",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "dio",
+            "ports": [2],
+            "bank_direction_low": "output",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "dio",
+            "ports": [3],
+            "bank_direction_low": "output",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "urukul",
+            "ports": [4, 5],
+            "synchronization": true,
+            "clk_sel": 1
+        },
+        {
+            "type": "urukul",
+            "ports": [6, 7],
+            "synchronization": true,
+            "clk_sel": 1
+        },
+        {
+            "type": "urukul",
+            "ports": [8, 9],
+            "synchronization": true,
+            "clk_sel": 1
+        },
+        {
+            "type": "sampler",
+            "ports": [10]
+        },
+        {
+            "type": "zotino",
+            "ports": [11]
+        }
+    ]
+}