1 files changed, 25 insertions, 0 deletions
diff --git a/rtl/cpu/cpu_appdom.sv b/rtl/cpu/cpu_appdom.sv
new file mode 100644
index 0000000..f1e67bb
--- /dev/null
+++ b/rtl/cpu/cpu_appdom.sv
@@ -0,0 +1,25 @@
+//
+// Copyright (c) 2026, Apollo Telephone Laboratories.
+// Provided under the BSD-3 clause.
+//
+
+//
+// Represents a processor application domain
+//
+// @clk_i:          Input clock
+// @reset_i:        Reset input
+// @mb_r_tap<n>_o:  Mainbus request tap output
+//
+module cpu_appdom (
+    input wire clk_i,
+    input wire reset_i,
+
+    output AriFrame mb_r_tap0_o
+);
+    // Lockstep domain 0
+    cpu_lockdom lockdom0 (
+        .clk_i(clk_i),
+        .reset_i(reset_i),
+        .mb_r_tap_o(mb_r_tap0_o)
+    );
+endmodule