Write Address Detailed Functions

PF0 (PF1, PF2)

These addresses are used to write into playfield registers

PLAYFIELD REGISTERS SERIAL OUTPUT

      1 horizontal line ( 160 clocks)
                                                                 Playfield
                                                                 Reflect Control
      4  7 | 7      0 | 0      7 | 4  7 | 7      0 | 0      7 |  
       PF0 |    PF1   |    PF2   |  PF0 |    PF1   |    PF2   |  REF = 0

                               center

      4  7 | 7      0 | 0      7 | 7      0 | 0      7 | 7  4 | 
       PF0 |    PF1   |    PF2   |    PF2   |    PF1   |  PF0 |  REF = 1

      each bit = 4 clocks

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