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  1. Title    Basic Flip Flops
  2. Pattern  FlipFlop.pds
  3. Revision A
  4. Author   Vincent Coli
  5. Company  Monolithic Memories Inc., Santa Clara, CA
  6. Date     2/28/85
  7.   
  8. CHIP FlipFlop PAL16RP8
  9.   
  10. CLK J K T PR CLR D S R GND
  11. /OC /SRC /SRT /DC /DT /TC /TT /JKC /JKT VCC
  12.   
  13. EQUATIONS
  14.   
  15. JKT :=  J*/JKT*/CLR                     ;JK Flio-Flop
  16.      + /K* JKT*/CLR                     ;(JKC = /Q)
  17.      +  PR                              ;Preset Q
  18.   
  19. JKC := /J* K  */PR                      ;JK Flip-Flop
  20.      + /J*/JKT*/PR                      ;(JK = /Q)
  21.      +  K* JKT*/PR
  22.      +  CLR                             ;Clear /Q
  23.   
  24. TT  :=  T*/TT*/CLR                      ;T Flip-Flop
  25.      + /T* TT*/CLR                      ;(TT = Q)
  26.      +  PR                              ;Preset Q
  27.   
  28. TC  := /T*/TT*/CLR                      ;T Flip-Flop
  29.      +  T* TT*/PR                       ;(TC = /Q)
  30.      +  CLR                             ;Clear /Q
  31.   
  32. DT  :=  D*/CLR                          ;D Flip-Flop
  33.      +  PR                              ;Preset Q
  34.   
  35. DC  := /D*/PR                           ;D Flip-Flop
  36.      +  CLR                             ;Clear /Q
  37.   
  38. SRT :=  S*     /CLR                     ;Set-Reset Flip-Flop
  39.      + /R* SRT*/CLR                     ;(SRT = Q)
  40.      +  PR                              ;Preset Q
  41.   
  42. SRC := /S* R  */PR                      ;Set-Reset Flip-Flop
  43.      + /S*/SRT*/PR                      ;(SRC = /Q)
  44.      +  CLR                             ;Clear /Q
  45.   
  46.   
  47. SIMULATION
  48.   
  49. TRACE_ON /OC PR CLR J K JKT T TT D DT S R SRT
  50.   
  51.   
  52. SETF OC /PR CLR                         ; Clear
  53. CLOCKF
  54. SETF /CLR /J /K
  55. CLOCKF
  56. SETF K
  57. CLOCKF
  58. SETF J                                  ; Toggle
  59. CLOCKF
  60. SETF /K
  61. CLOCKF
  62. SETF /J
  63. CLOCKF
  64. SETF K
  65. CLOCKF
  66. SETF PR                                 ; Preset
  67. CLOCKF
  68. SETF /PR J K                            ; Toggle
  69. CLOCKF
  70. SETF /K
  71. CLOCKF
  72.   
  73. SETF CLR                                ; Clear
  74. CLOCKF
  75. SETF /CLR /T
  76. CLOCKF
  77. SETF T                                  ; Toggle
  78. CLOCKF
  79. SETF /T                                 ; Toggle
  80. CLOCKF
  81.   
  82.   
  83. SETF CLR                                ; Clear
  84. CLOCKF
  85. SETF /D
  86. CLOCKF
  87. SETF D
  88. CLOCKF
  89. SETF /D
  90. CLOCKF
  91.   
  92. SETF CLR                                ; Clear
  93. CLOCKF
  94. SETF /CLR /S /R
  95. CLOCKF
  96. SETF S                                  ; Set
  97. CLOCKF
  98. SETF /S R                               ; Reset
  99. CLOCKF
  100. SETF /S R                               ; Hold
  101. CLOCKF
  102. SETF /OC                                ; HI-Z
  103. CLOCKF
  104.   
  105. TRACE_OFF
  106.   
  107.