diff --git a/www/docs/ports.t b/www/docs/ports.t
index f192a77ec9..5fe191462f 100755
--- a/www/docs/ports.t
+++ b/www/docs/ports.t
@@ -1,8 +1,7 @@
 #define _PAGE_ Port pin assignments
 #include "head.t"
 
-<h1>CPU Port pin assignments</h1>
-
+<h2>Port A</h2>
 <table border=1>
 <tr><th>Port pin</th>
     <th colspan=2>Player</th>
@@ -86,9 +85,104 @@
 </tr>
 <tr><th><b>PA15</b></th>
     <td><b>GP In</b></td><td>USB cable detect (0=inserted)</td>
-    <td><b>/IRQ3</b></td><td>MAS Demand IRQ</td>
-    <td><b>/IRQ3</b></td><td>MAS Demand IRQ</td>
+    <td><b>/IRQ3</b></td><td>MAS Demand IRQ, start demand</td>
+    <td><b>/IRQ3</b></td><td>MAS Demand IRQ, start demand</td>
+</tr>
+</table>
+
+<h2>Port B</h2>
+<table border=1>
+<tr><th>Port pin</th>
+    <th colspan=2>Player</th>
+    <th colspan=2>Recorder</th>
+    <th colspan=2>FM/V2 Recorder</th>
+</tr>
+<tr><th><b>PB0</b></th>
+    <td><b>GP Out</b></td><td>LCD Data Select (1=data)</td>
+    <td><b>GP Out</b></td><td>LCD Serial Data</td>
+    <td><b>GP Out</b></td><td>LCD Serial Data / FM Radio Data In</td>
+</tr>
+<tr><th><b>PB1</b></th>
+    <td><b>GP Out</b></td><td>LCD Chip Select (0=active)</td>
+    <td><b>GP Out</b></td><td>LCD Serial Clock</td>
+    <td><b>GP Out</b></td><td>LCD Serial Clock / FM Radio Serial Clock</td>
+</tr>
+<tr><th><b>PB2</b></th>
+    <td><b>GP Out</b></td><td>LCD Serial Data</td>
+    <td><b>GP Out</b></td><td>LCD Data Select (1=data)</td>
+    <td><b>GP Out</b></td><td>LCD Data Select (1=data)</td>
+</tr>
+<tr><th><b>PB3</b></th>
+    <td><b>GP Out</b></td><td>LCD Serial Clock</td>
+    <td><b>GP Out</b></td><td>LCD Chip Select (0=active)</td>
+    <td><b>GP Out</b></td><td>LCD Chip Select (0=active) / FM Radio Chip Enable (1=active)</td>
+</tr>
+<tr><th><b>PB4</b></th>
+    <td><b>GP Out</b></td><td>Hard disk power (0=on) <b>NewPlayer only</b></td>
+    <td><b>&nbsp;</b></td><td>&nbsp;</td>
+    <td><b>GP In</b></td><td>FM Radio Data Out</td>
+</tr>
+<tr><th><b>PB4</b></th>
+    <td><b>GP Out</b></td><td>Hard disk power (0=on) <b>NewPlayer only</b></td>
+    <td><b>GP In</b></td><td>OFF key (0=pressed)</td>
+    <td><b>GP In</b></td><td>FM Radio Data Out</td>
+</tr>
+<tr><th><b>PB5</b></th>
+    <td><b>GP Out</b></td><td>MAS WSEN (1=enable)</td>
+    <td><b>GP Out</b></td><td>Charger control (0=enable)</td>
+    <td><b>GP Out</b></td><td>Main power control (0=shut off)</td>
+</tr>
+<tr><th><b>PB6</b></th>
+    <td><b>GP Out</b></td><td>Red LED control (1=on)</td>
+    <td><b>GP Out</b></td><td>Red LED control (1=on)</td>
+    <td><b>GP Out</b></td><td>Red LED control (1=on)</td>
+</tr>
+<tr><th><b>PB7</b></th>
+    <td><b>GP I/O</b></td><td>I²C Data</td>
+    <td><b>GP Out</b></td><td>I²C Data</td>
+    <td><b>GP Out</b></td><td>I²C Data</td>
+</tr>
+<tr><th><b>PB8</b></th>
+    <td><b>&nbsp;</b></td><td>&nbsp;</td>
+    <td><b>&nbsp;</b></td><td>&nbsp;</td>
+    <td><b>&nbsp;</b></td><td>&nbsp;</td>
+</tr>
+<tr><th><b>PB9</b></th>
+    <td><b>TxD0</b></td><td>MAS Serial link for MP3 data</td>
+    <td><b>TxD0</b></td><td>MAS Serial link for MP3 data</td>
+    <td><b>TxD0</b></td><td>MAS Serial link for MP3 data</td>
+</tr>
+<tr><th><b>PB10</b></th>
+    <td><b>RxD1</b></td><td>Remote control serial input</td>
+    <td><b>RxD1</b></td><td>Remote control serial input</td>
+    <td><b>Unused</b></td><td>(meant for RDS data input, IIRC)</td>
+</tr>
+<tr><th><b>PB11</b></th>
+    <td><b>&nbsp;</b></td><td>&nbsp;</td>
+    <td><b>&nbsp;</b></td><td>&nbsp;</td>
+    <td><b>&nbsp;</b></td><td>&nbsp;</td>
+</tr>
+<tr><th><b>PB12</b></th>
+    <td><b>SCK0</b></td><td>MAS Serial Clock for MP3 data</td>
+    <td><b>SCK0</b></td><td>MAS Serial Clock for MP3 data</td>
+    <td><b>SCK0</b></td><td>MAS Serial Clock for MP3 data</td>
+</tr>
+<tr><th><b>PB13</b></th>
+    <td><b>GP Out</b></td><td>I²C Clock</td>
+    <td><b>GP Out</b></td><td>I²C Clock</td>
+    <td><b>GP Out</b></td><td>I²C Clock</td>
+</tr>
+<tr><th><b>PB14</b></th>
+    <td><b>/IRQ6</b></td><td>MAS Demand IRQ, stop demand</td>
+    <td><b>/IRQ6</b></td><td>MAS Demand IRQ, stop demand</td>
+    <td><b>/IRQ6</b></td><td>MAS Demand IRQ, stop demand</td>
+</tr>
+<tr><th><b>PB15</b></th>
+    <td><b>GP In</b></td><td>MAS MP3 frame sync</td>
+    <td><b>GP In</b></td><td>MAS PRTW input (0=ready)</td>
+    <td><b>GP In</b></td><td>MAS PRTW input (0=ready)</td>
 </tr>
 </table>
 
 #include "foot.t"
+