<br>1 bit per RTM output channel <br> 1 -- line active <br> 0 -- line inactive
<li><b>
HWVERS
</b>[<i>read-only</i>]: Hardware version
<br>PCB version - Hardwired on the board <br> Only meaningful for HW v4 and over <br> Earlier versions show 0 <br> e.g. <br> 0x04 -- hw v4 <br> 0x05 -- hw v5 <br> 0x00 -- hw v3 and earlier
<br>PCB version - Hardwired on the board <br> Only meaningful for HW v4.0 and over <br> Earlier versions show 0. The register <br> uses 4 bits for the version number and<br> 2 bits for the execution.<br> e.g. <br> 0x010001 -- hw v4.1 <br> 0x010111 -- hw v5.3 <br> 0x00-- hw v3 and earlier