Revise implementation of 'next' property

docs/props/field.rst

@@ -45,7 +45,7 @@ operation.
 
     {signal: [
         {name: 'clk',             wave: 'p....'},
-        {name: 'hwif_in..value',  wave: 'x.=x.', data: ['D']},
+        {name: 'hwif_in..next',   wave: 'x.=x.', data: ['D']},
         {name: 'hwif_out..swacc', wave: '0.10.'}
     ]}
 
@@ -106,7 +106,10 @@ hw
 Controls hardware access to the field.
 
 If readable, enables output signal ``hwif_out..value``. If writable, enables
-input ``hwif_in..value``.
+input ``hwif_in..next``.
+
+Hardware-writable fields can optionally define the ``next`` property which replaces
+the inferred ``hwif_in..next`` input with an alternate reference.
 
 
 hwclr/hwset
@@ -140,7 +143,7 @@ If true, infers the existence of input signal: ``hwif_in..we``, ``hwif_in..wel``
 
     {signal: [
         {name: 'clk',             wave: 'p....'},
-        {name: 'hwif_in..value',  wave: 'x.=x.', data: ['D']},
+        {name: 'hwif_in..next',   wave: 'x.=x.', data: ['D']},
         {name: 'hwif_in..we',     wave: '0.10.',},
         {name: 'hwif_in..wel',    wave: '1.01.',},
         {name: '<field value>',   wave: 'x..=.', data: ['D']}
@@ -390,10 +393,33 @@ the counter is about to wrap.
 Interrupt Properties
 --------------------
 
+intr
+^^^^
+
+level (default)
+    |NO|
+
+posedge
+    |NO|
+
+negedge
+    |NO|
+
+bothedge
+    |NO|
+
+nonsticky
+    |NO|
+
+
 enable
 ^^^^^^
 |NO|
 
+mask
+^^^^
+|NO|
+
 haltenable
 ^^^^^^^^^^
 |NO|
@@ -402,14 +428,6 @@ haltmask
 ^^^^^^^^
 |NO|
 
-intr
-^^^^
-|NO|
-
-mask
-^^^^
-|NO|
-
 sticky
 ^^^^^^
 |NO|
@@ -430,7 +448,10 @@ encode
 
 next
 ^^^^
-|NO|
+|OK|
+
+If assigned, replaces the inferred ``hwif_in..next`` input with an explicit reference.
+
 
 paritycheck
 ^^^^^^^^^^^