make LCD display memory an array

data/registers/lcd_v1.yaml

@@ -19,30 +19,13 @@ block/LCD:
       byte_offset: 12
       access: Write
       fieldset: CLR
-    - name: RAM_COM0
+    - name: RAM_COM
       description: display memory
+      array:
+        len: 8
+        stride: 8
       byte_offset: 20
-    - name: RAM_COM1
-      description: display memory
-      byte_offset: 28
-    - name: RAM_COM2
-      description: display memory
-      byte_offset: 36
-    - name: RAM_COM3
-      description: display memory
-      byte_offset: 44
-    - name: RAM_COM4
-      description: display memory
-      byte_offset: 52
-    - name: RAM_COM5
-      description: display memory
-      byte_offset: 60
-    - name: RAM_COM6
-      description: display memory
-      byte_offset: 68
-    - name: RAM_COM7
-      description: display memory
-      byte_offset: 76
+      fieldset: RAM_COM
 fieldset/CLR:
   description: clear register
   fields:
@@ -151,3 +134,12 @@ fieldset/SR:
       description: LCD Frame Control Register Synchronization flag
       bit_offset: 5
       bit_size: 1
+fieldset/RAM_COM:
+  description: "display memory"
+  fields:
+    - name: LOW
+      description: display memory low word
+      byte_offset: 0
+    - name: HIGH
+      description: display memory high word
+      byte_offset: 4