TSF<->TSFi I/O signal spec
==========================

Last update: Sep/5/02  Data_in and DAV/CAV/STRBOUT are ECL (not PECL)

                        TSF
Neighbor-in              I   TTL  ! 5V CMOS from 
Neighbor-out             O   TTL  ! 74ACT16244 buffer  

Data_in (from GLINK)     I   ECL 
DAV,CAV,STRBOUT          I   ECL                

GLINK reset              O   TTL  
GLINK ready              I   TTL
GLINK synched            O   TTL 
Slow control address     O   TTL     
SV (sensor voltage)      I   Analog  (pass through TSF to P3)  
Slow control select      O   TTL  
RX_signal_detect         I   TTL 

Frame bits               O   LVDS pair
Clk-60                   O   LVDS pair
ZPD output               O   LVDS pairs (skew<5ns)   
BLT output               O   TTL