1 files changed, 8 insertions, 2 deletions
diff --git a/fdl/ch573/gpio.fdl b/fdl/ch573/gpio.fdl
index c54d956..bab481a 100644
--- a/fdl/ch573/gpio.fdl
+++ b/fdl/ch573/gpio.fdl
@@ -34,7 +34,10 @@ package ch573.gpio {
     };
 
     /** Pin input register. */
-    reg pin(32);
+    reg pin(32) : struct {
+      in : bit_t[16];
+      reserved(16);
+    };
 
     /** Pin output register. */
     reg (32) : struct {
@@ -46,7 +49,10 @@ package ch573.gpio {
     reg clr(32);
 
     /** Pull-up resistor configuration. */
-    reg pu(32);
+    reg (32) : struct {
+      pu : enable_t[16];
+      reserved(16);
+    };
 
     /** pull-down/drive configuration register. */
     reg (32) : struct {