What parts of the Level 1 Framework are looking at which Ticks at a given point in time?
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                                                                                     2-SEP-1999 



               0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6                             
                _             _             _             _             _             _                                        
Tick Clock    _| |___________| |___________| |___________| |___________| |___________| |___________                            
                    _             _             _             _             _             _                                    
TRM Clock     _____| |___________| |___________| |___________| |___________| |___________| |_______                            
                          _             _             _             _             _             _                              
SCL Clock     ___________| |___________| |___________| |___________| |___________| |___________| |_                            
                                                                                                                               
Beg Turn                  ____________                                                                                         
Marker        ___________|            |____________________________________________________________                            
from Carmen

Beg Turn                                     _____________
Marker to SCL ______________________________|             |________________________________________
(from SCL Helper)
                                                                                                
GS BX                                                                                                                          
Tick Num      --X-----158-----X-----159-----X------1------X------2------X------3------X------4-----                            
to SCL
                                                                                                                               
GS BX                                                                                                                          
Tick Num      --X-----159-----X------1------X------2------X------3------X------4------X------5-----                            
(internal to TTS)                                                                                                       

L1 Accept
Tick Num      --X-----132-----X-----133-----X-----134-----X-----135-----X-----136-----X-----137----                            
to SCL
                                                                                                                               
L1 Accept                                                                                                                      
Tick Num      --X-----133-----X-----134-----X-----135-----X-----136-----X-----137-----X-----138----                            
(internal to TTS)                                                                              

TRM presents
AOIT's for    ------X-----135-----X-----136-----X-----137-----X-----138-----X-----139-----X-----140
Tick Number

TRM presents 
FEBz, Dsbls   --X-----135-----X-----136-----X-----137-----X-----138-----X-----139-----X-----140----
for Tick Number

TDM processing
Tick Number   --X-----134-----X-----135-----X-----136-----X-----137-----X-----138-----X-----139----                            
                                                                                               
PBS tick
Counters      --X-----135-----X-----136-----X-----137-----X-----138-----X-----139-----X-----140----
(internal to PBS)

Select Tick                                                              _____________              
139 AOIT      __________________________________________________________|             |____________ 
(from TTS output)                                                                                  

Select Tick                                                _____________              
139 signal    ____________________________________________|             |__________________________
(internal to TTS)      (active when L1 Accept Tick Number (internal to TTS) = 136 if we don't add shift regs to TTS)