Digital Filter Mode Switch

1. Tevatron BPM System Digital Filter Mode Switch All Closed Orbit Mode switches are interrupted by TBT mode. Closed Orbit Mode 1024 pts • - Switch activated • every 2ms • Switch deac-tivated on abort $47 or $4B • -Switch reac-tivated after 1st turn acquisition 1024 pts 128 pts - Switch changed by change in Tevatron state device that listens to $4B and $5C events. • - Switch activated • every 1sec • Switch deac-tivated on abort $47 or $4B • -Switch reac-tivated after 1st turn acquisition • Switch • activated • by • TCLK $75 • shot data • event • Switch • activated • by • user • configur- • able event ($78) Switch activated every 2ms Display Frame Buffer Fast Time Plot Buffer TBT Mode Fast Abort Buffer Profile Frame Buffer Slow Abort Buffer Data at end of FIFO is dicarded Data at end of FIFO is dicarded FIFO full generates error. Pointer reset on TCLK $C2. 8192 pts 128 pts - Switch activated by delayed beam synch clock $7C. Switch remains activated for specified number of turns. 8192 pts • Switch • activated • by • user • configur- • able event - Switch activated by delayed beam synch clock $DA. Switch remains activated for specified number of turns. First Turn Buffer User Data Buffer First Turn Closed Orbit Buffer First Turn Turn by Turn Buffer FIFO full generates error Data at end of FIFO is discarded • Value derived as an average of 64 points after 500th turn of injection captured in turn-by-turn buffer FIFO full generates error

2. Tevatron Hand-Me-Down System for MI Digital Filter Mode Switch All Closed Orbit Mode switches are interrupted by TBT mode. Closed Orbit Mode 2.5 Mhz 1024 pts • - Switch activated • every 2ms • Switch deac-tivated on $26 or $2x • -Switch reac-tivated after 1st turn acquisition 1024 pts 128 pts - Switch changed by Tclk $79, or TBT Event(??). 53 Mhz • Switch • activated • by • User • Configurble • Tclock • Event ($7A) - • Switch • activated • by • user • configur- • able event ($7B) Switch activated every 2ms Display Frame Buffer Fast Time Plot Buffer 2.5 and 53 Mhz filters changed by user control Spare Profile Frame Buffer Spare TBT Mode FIFO full generates error. Pointer reset on TCLK $79. 8192 pts 128 pts - Switch activated by delayed beam synch clock $xx. Switch remains activated for specified number of turns. 8192 pts • Switch • activated • by • user • configur- • able event - Switch activated by delayed beam synch clock $??. Switch remains activated for specified number of turns. First Turn Buffer User Data Buffer First Turn Closed Orbit Buffer First Turn Turn by Turn Buffer FIFO full generates error Data at end of FIFO is discarded • Value derived as an average of 64 points after 500th turn of injection captured in turn-by-turn buffer FIFO full generates error

3. State System for MI Digital Filter Mode Switch All Closed Orbit Mode switches are interrupted by TBT mode. Closed Orbit Mode 2.5 Mhz 1024 pts • - Switch activated • every 2ms • Switch deac-tivated on $26 or $2x • -Switch reac-tivated after 1st turn acquisition 1024 pts 128 pts - Switch changed by SET FILTER message 53 Mhz • Switch • activated • by • User • Configurble • Tclock • Event ($7A) - • Switch • activated • by • user • configur- • able event ($7B) Switch activated every 2ms Display Frame Buffer Fast Time Plot Buffer 2.5 and 53 Mhz filters changed by SET FILTER message Spare Profile Frame Buffer Spare TBT Mode FIFO full generates error. Pointer reset on TCLK $79. 8192 pts 20 pts 128 pts Switch activated by beam synch clock $xx, $7A, $D6, $D8 for first turn; $A1, $A6, $74, $75, $76, $7B, $7C, $7D, $7E for last turn. Switch remains activated for specified number of turns. 8192 pts • Switch • activated • by • user • configur- • able event - Switch activated by delayed beam synch clock $??. Switch remains activated for specified number of turns. Flash Turn Buffer Flash Turn Buffer User Data Buffer First Turn Closed Orbit Buffer Turn by Turn Buffer FIFO full generates error Data at end of FIFO is discarded • Value derived as an average of 64 points after 500th turn of injection captured in turn-by-turn buffer FIFO full generates error

4. Clock System for MI Digital Filter Mode Switch All Closed Orbit Mode switches are interrupted by TBT mode. Closed Orbit Mode 2.5 Mhz 1024 pts • - Switch activated • every 2ms • Switch deac-tivated on $26 or $27 • -Switch reac-tivated after 1st turn acquisition 1024 pts 128 pts - Switch st to TBT modo on Tclk $7C. Returned to closed orbit on Tclk $7D. 53 Mhz • Switch • activated • by • User • Configurble • Tclock • Event ($7A) - • Switch • activated • by • user • configur- • able event ($7B) Switch activated every 2ms Display Frame Buffer Fast Time Plot Buffer 2.5 and 53 Mhz filters changed by Tclk $50 and $51 Spare Profile Frame Buffer Spare TBT Mode FIFO full generates error. Pointer reset on TCLK $79. 8192 pts 20 pts 128 pts - Switch activated by beam synch clock $xx, $7A, $D6, $D8 for first turn; $A1, $A6, $74, $75, $76, $7B, $7C, $7D, $7E for last turn. Switch remains activated for specified number of turns. 8192 pts • Switch • activated • by • user • configur- • able event - Switch activated by delayed beam synch clock $??. Switch remains activated for specified number of turns. Flash Turn Buffer Flash Turn Buffer User Data Buffer First Turn Closed Orbit Buffer Turn by Turn Buffer FIFO full generates error Data at end of FIFO is discarded • Value derived as an average of 64 points after 500th turn of injection captured in turn-by-turn buffer FIFO full generates error