msx_io_ports: Add warning for Franky’s SN76489 DCSG I/O port.
1 files changed, 3 insertions(+), 1 deletions(-)

M resources/msx_io_ports.php
M resources/msx_io_ports.php +3 -1
@@ 141,7 141,9 @@ If you have additions or see an error, p
 </tr>
 <tr>
   <td>#48-#49</td>
-  <td>Franky SN76489 DCSG / VDP H/V counters</td>
+  <td>Franky SN76489 DCSG / VDP H/V counters<br />
+      <em>Note: Franky does not implement expanded I/O, so its usage of this I/O port is non-standard.<br />
+      Future DCSG hardware is recommended to reserve a device ID and implement the banking protocol.</em></td>
 </tr>
 <tr>
   <td>#56-#5D</td>