SR

The internal SR line is set true by setting bit 5. and set false by setting bit 21. If the internal SR line is true, the SSP will assert TP for broadcast case 5.

The internal SR line can be asserted on either the cable segment or crate segment or both. Setting bit 9 enables the internal SR onto the cable segment, bit 25 disables it. Setting bit 4 enables the internal SR onto the crate segment, bit 20 disables it.