The string to "assign" to the DEBUG_SYNC variable can contain:
{RESET |
<sync point name> TEST |
<sync point name> CLEAR |
<sync point name> {{SIGNAL <signal name> |
WAIT_FOR <signal name> [TIMEOUT <seconds>]
[NO_CLEAR_EVENT]}
[EXECUTE <count>] &| HIT_LIMIT <count>}
Here '&|' means 'and/or'. This means that one of the sections separated by '&|' must be present or both of them.