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Page Title: PANEL PROCESSOR FUNCTION
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O-DATA   RECEIVER   FUNCTION
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Fire Controlman Volume 05-Display Systems and Devices
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DIAGNOSTIC   FUNCTION

from   the   graphics   processor   is   received   by   the display   generator   and   decoded.   The   appropriate deflection,   intensity,   and   timing   signals   are generated   and   sent   to   the   BDU.   The   display generator   can   display   symbols,   circles,   ellipses,   and lines  in  four  intensities  and  four  colors. PANEL  PROCESSOR  FUNCTION.—  The  panel processor  function  monitors  and  controls  the  various operator   panels   on   the   display   console.   It   receives data  from  various  switches  and  forms  the  I-data words.   The   panel   processor   function   also   lights   the various  lamps  in  the  6  x  7  switch  panel,  variable function   key   (VFK)   panel,   and   system   keyboard.   It accumulates   trackball   data   for   proper   positioning   of the   ball   tab.   The   panel   processor   converts   the   X/Y coordinates   of   the   trackball   to   range   and   bearing data   (R- If   the   operator   activates   range   and bearing   display,   the   console   will   display   range   and bearing  of  the  ball  tab  from  the  point  that  the  ball tab  was  enabled. During   diagnostics,   the   panel control   processor   generates   diagnostic   controls   and flags.  It  compiles  graphics  data  and  generates  sweep and   display   control   signals. SWEEP  AND  RASTER  FUNCTION.—  The sweep   and   raster   function   generates   the   signals necessary   for   the   proper   display   of   sensor   sweeps. It  receives  display  sweep  signals  from  the  SDDS. The  sweep  and  raster  function  also  receives  offset data,  range  settings,  sensor  selected,  sensor  mode, and   video   level   selected   from   the   panel   processor. The   sweep   and   raster   function   generates   the   sweep and  raster  intensity  controls  for  the  BDU.  It  also generates  sensor  and  video  codes  for  the  SDDS,  and sweep   deflection   control   and   offset   coordinates   for the   digital   deflection   function. DIGITAL  DEFLECTION  FUNCTION.—  The digital  deflection  function  develops  X  and  Y  analog deflection   voltages   for   use   by   the   BDU.   Digital   X and   Y   symbol   coordinates   are   stored   in   the   X/Y symbol  counters.  The  output  of  the  symbol  counters are  sent  to  the  X  and  Y  modified  monobit  digilogs for   conversion   to   an   analog   voltage. Sweep deflection  data  is  generated  by  the  X  and  Y  sweep counters. The   sweep   counter   receives   and   counts the  DC  and  DU  pulses.  If  the  sweep  is  to  be  offset, the  X  and  Y  sweep  counters  are  preset  to  the  offset coordinates. The   outputs   of   the   X   and   Y   sweep counters   are   also   sent   to   the   modified   monobit digilogs  for  conversion  to  analog  deflection  voltages. The   sweep   symbol   select   multiplexer   controls whether   the   sweep coordinates   or symbol coordinates   are   input   to   the   modified   monobit digilogs. CLOCK   GENERATOR   FUNCTION.—   The clock   generator   function   generates   the   system   clock for  use  by  the  display  console.  Clocks  are  generated from   40-MHz   and   24-MHz   oscillators.   The   clock generator  function  also  generates  the  power-on  reset signals  at  power-on  or  when  the  RESET  switch  is depressed. TV   MONITOR   DISPLAY   GENERATOR FUNCTION.—   The   TV   monitor   display   generator function  generates  analog  composite  video  used  to display   alphanumeric   data   on   the   digital   data indicator. C O M P U T E R - C O N T R O L L E D    A C T I O N ENTRY   PANEL   (CCAEP)   FUNCTION.—   The computer-controlled   action   entry   panel   (CCAEP) function   interfaces   the   CCAEP   with   the   display console.  When  an  operator  activates  a  CCAEP switch,  the  switch  data  is  processed  by  the  CCAEP function   into   computer   I-data.   CCAEP   O-data   from the  computer  is  decoded  to  generate  row  and  column enables  and  to  light  readout  lamps. I - D A T A    S T O R A G E    A N D    C O N T R O L FUNCTION.—   The   I-data   storage   and   control function   forms   computer   I-data   from   the   various functions  and  sends  data  to  the  system  computer  in response  to  an  interrogation.  Data  is  received  by  the I-data  storage  and  control  function  from  the  other functional  areas  of  the  display  console  and  converted into  serial  data  if  a  CDB  is  used  in  the  system.  If a  CDB  is  not  used,  then  the  I-data  is  in  parallel form   and   transferred   directly   to   the   computer. I-DATA  TRANSMITTER  FUNCTION.—  The I-data   transmitter   function   converts   console   I-data from   the   I-data   storage   and   control   function   to   the levels   required   for   transfer   to   the   system   computer. If  the  data  to  be  transferred  is  in  serial  format,  the I-data  transmitter  function  converts  the  serial  data 4-11

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