Subversion Repositories usbhostslave

VERSION=1.19
HEADER
FILE="processRxBit.asf"
FID=4094ffa4
LANGUAGE=VERILOG
ENTITY="processRxBit"
FREEOID=256
"LIBRARIES=`timescale 1ns / 1ps\n`include \"usbSerialInterfaceEngine_h.v\"\n\n"
MULTIPLEARCHSTATUS=FALSE
SYNTHESISATTRIBUTES=TRUE
HEADER_PARAM="AUTHOR,Steve"
HEADER_PARAM="COMPANY,Base2Designs"
HEADER_PARAM="CREATIONDATE,4/9/2004"
HEADER_PARAM="TITLE,processRxBit"
END
BUNDLES
B T "Declarations" 0,0,255 0 0 1 255,255,255 0 3333 0 0000 0 "Arial" 0
B T "Conditions" 236,0,236 0 0 0 255,255,255 0 3333 0 0110 0 "Arial" 0
B F "States" 0,0,0 0 0 1 0,255,0 1 3527 1480 0000 0 "Arial" 0
B T "Actions" 0,0,0 0 0 1 255,255,255 0 3333 0 0000 0 "Arial" 0
B T "Labels" 0,0,0 0 0 0 0,0,0 0 3333 0 0000 0 "Arial" 0
B L "Transitions" 0,0,0 0 0 1 0,0,0 1 3527 1480 0000 0 "Arial" 0
B F "Ports" 0,0,0 0 0 1 0,255,255 1 3527 1480 0000 0 "Arial" 0
B L "Errors" 255,0,0 0 3 1 255,255,255 1 3527 1480 0000 0 "Arial" 0
B T "State Labels" 0,0,0 0 0 0 0,0,0 0 3333 0 0000 0 "Arial" 4
B F "Current State" 255,255,0 0 0 1 255,255,0 1 3527 1480 0000 0 "Arial" 0
B T "Comments" 157,157,157 0 0 1 255,255,255 0 3333 0 0000 0 "Arial" 0
B L "Info" 0,255,0 0 3 1 255,255,255 1 3527 1480 0000 0 "Arial" 0
B F "Junction" 0,0,0 0 0 1 255,0,0 1 3527 1480 0000 0 "Arial" 0
B F "Initial State Indicator" 0,0,0 0 0 1 240,140,40 1 3527 1480 0000 0 "Arial" 0
END
INSTHEADER 1
PAGE 0,0 215900,279400
MARGINS 12700,12700 12700,12700
END
INSTHEADER 16
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MARGINS 12700,12700 12700,12700
END
INSTHEADER 24
PAGE 0,0 215900,279400
MARGINS 12700,12700 12700,12700
END
INSTHEADER 33
PAGE 0,0 215900,279400
MARGINS 12700,12700 12700,12700
END
INSTHEADER 42
PAGE 0,0 215900,279400
MARGINS 12700,12700 12700,12700
END
INSTHEADER 97
PAGE 0,0 215900,279400
MARGINS 12700,12700 12700,12700
END
INSTHEADER 113
PAGE 0,0 215900,279400
MARGINS 12700,12700 12700,12700
END
INSTHEADER 115
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MARGINS 12700,12700 12700,12700
END
INSTHEADER 213
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MARGINS 12700,12700 12700,12700
END
INSTHEADER 219
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MARGINS 12700,12700 12700,12700
END
INSTHEADER 227
PAGE 0,0 215900,279400
MARGINS 12700,12700 12700,12700
END
OBJECTS
L 7 6 0 TEXT "Labels" | 23239,210942 1 0 0 "prRxBit"
F 6 0 671089152 185 0 "" 0 RECT 0,0,0 0 0 1 255,255,255 0 | 15700,15700 200200,221539
G 1 0 0 TEXT 0,0,0 0 0 0 255,255,255 0 3527 1480 0000 0 "Arial" 0 | 94226,265828 1 0 0 "Module: processRxBit"
L 8 9 0 TEXT "State Labels" | 42238,183458 1 0 0 "START\n/0/"
S 9 6 0 ELLIPSE "States" | 42238,183458 6500 6500
I 12 6 0 Builtin Reset | 22728,190398
W 13 6 0 12 9 BEZIER "Transitions" | 22728,190398 27224,190134 31822,186104 35786,184244
L 15 16 0 TEXT "State Labels" | 116068,123104 1 0 0 "IDLE"
S 16 6 4100 ELLIPSE 0,0,0 0 0 1 0,255,255 1 | 116068,123104 6500 6500
H 17 16 0 RECT 0,0,0 0 0 1 255,255,255 0 | 15700,15700 200200,263700
S 18 17 8192 ELLIPSE "States" | 107950,139700 6500 6500
L 19 18 0 TEXT "State Labels" | 107950,139700 1 0 0 "FIRST_BIT\n/1/"
I 20 17 0 Builtin Entry | 56736,212076
I 21 17 0 Builtin Exit | 128380,96970
W 23 17 0 18 21 BEZIER "Transitions" | 111741,134422 116780,127404 120535,103988 125575,96970
S 24 6 12292 ELLIPSE 0,0,0 0 0 1 0,255,255 1 | 116801,94499 6500 6500
L 25 24 0 TEXT "State Labels" | 116801,94499 1 0 0 "DATA_RX"
H 32 24 0 RECT 0,0,0 0 0 1 255,255,255 0 | 15330,15700 199830,263700
H 41 33 0 RECT 0,0,0 0 0 1 255,255,255 0 | 15700,15700 200200,263700
S 33 6 16388 ELLIPSE 0,0,0 0 0 1 0,255,255 1 | 118212,64680 6500 6500
L 34 33 0 TEXT "State Labels" | 118212,64680 1 0 0 "RES_RX"
W 35 41 0 40 37 BEZIER "Transitions" | 111741,134422 116780,127404 121695,118778 126735,111760
W 36 41 0 38 40 BEZIER "Transitions" | 90251,167640 94982,160656 99574,152064 104305,145080
I 37 41 0 Builtin Exit | 129540,111760
I 38 41 0 Builtin Entry | 86360,167640
L 39 40 0 TEXT "State Labels" | 107950,139700 1 0 0 "CHK\n/9/"
S 40 41 65536 ELLIPSE "States" | 107950,139700 6500 6500
S 42 6 20484 ELLIPSE 0,0,0 0 0 1 0,255,255 1 | 119820,36808 6500 6500
L 43 42 0 TEXT "State Labels" | 119820,36808 1 0 0 "RES_END"
H 50 42 0 RECT 0,0,0 0 0 1 255,255,255 0 | 15700,15700 200200,263700
W 51 6 0 213 16 BEZIER "Transitions" | 42388,154240 42522,148478 41966,137442 42502,133556\
                                       43038,129670 44914,125650 53423,124511 61932,123372\
                                       93489,123426 109569,123158
W 52 6 0 213 24 BEZIER "Transitions" | 42699,154238 43235,140704 42636,114126 43641,106354\
                                       44646,98582 47594,94562 55902,93624 64210,92686\
                                       94494,92954 102132,93021 109770,93088 110325,93078\
                                       110459,93078
W 53 6 0 213 33 BEZIER "Transitions" | 42645,154234 43047,131722 42770,88800 43976,77142\
                                       45182,65484 49202,63876 57711,63474 66220,63072\
                                       96236,63072 103807,63072 111378,63072 111758,63165\
                                       111892,63165
W 54 6 0 213 42 BEZIER "Transitions" | 42671,154227 43609,125551 43842,70308 45115,54764\
                                       46388,39220 49604,34396 58247,33391 66890,32386\
                                       97657,35973 113335,36375
C 55 51 0 TEXT "Conditions" | 46862,121215 1 0 0 "RXBitStMachCurrState == `IDLE_BIT_ST"
C 56 52 0 TEXT "Conditions" | 48456,87658 1 0 0 "RXBitStMachCurrState == `DATA_RECEIVE_BIT_ST"
C 57 53 0 TEXT "Conditions" | 50070,58068 1 0 0 "RXBitStMachCurrState == `WAIT_RESUME_ST"
C 58 54 0 TEXT "Conditions" | 37965,30092 1 0 0 "RXBitStMachCurrState == `RESUME_END_WAIT_ST"
L 62 63 0 TEXT "State Labels" | 113723,160148 1 0 0 "WAIT_BITS\n/2/"
S 63 6 24576 ELLIPSE "States" | 113456,158815 6500 6500
W 64 6 0 9 63 BEZIER "Transitions" | 48724,183047 60291,181433 96001,163180 107568,161566
W 65 6 0 63 213 BEZIER "Transitions" | 107011,157978 95175,155961 57808,160629 45972,158612
C 66 65 0 TEXT "Conditions" | 64836,155511 1 0 0 "processRxBitsWEn == 1'b1"
W 67 6 0 219 63 BEZIER "Transitions" | 168098,86660 172418,87740 183648,91372 185943,95422\
                                       188238,99472 188778,113512 186145,122422 183513,131332\
                                       167904,143587 159264,149864 150624,156142 133542,158851\
                                       125779,159931 118017,161011 123617,159646 119837,160051
W 68 6 0 16 219 BEZIER "Transitions" | 121312,119265 131167,111435 152206,96104 162061,88274
W 69 6 0 24 219 BEZIER "Transitions" | 123174,93221 132840,90845 152243,88111 161207,86437
W 71 6 0 33 219 BEZIER "Transitions" | 124072,67490 133252,71405 152285,80632 161465,84547
W 72 6 0 42 219 BEZIER "Transitions" | 124182,41625 133497,51750 153075,73168 162390,83293
A 73 18 4 TEXT "Actions" | 122746,145328 1 0 0 "processRxByteWEn <= 1'b0;\nRXBitStMachCurrState <= `DATA_RECEIVE_BIT_ST;\nRXSameBitCount <= 4'h1;                          \nRXBitCount <= 4'h1;\noldRXBits <= RxBits;\n//zero is always the first RZ data bit of a new packet\nRXByte <= 8'h00;"
L 74 75 0 TEXT "State Labels" | 77268,176778 1 0 0 "CHK_KBIT\n/3/"
S 75 17 28672 ELLIPSE "States" | 77268,176778 6500 6500
W 76 17 4096 241 18 BEZIER "Transitions" | 130017,172236 121274,163054 112530,153872 103787,144690
A 78 65 16 TEXT "Actions" | 57414,163918 1 0 0 "RxBits <= RxBitsIn;\nprocessRxBitRdy <= 1'b0;"
A 95 91 16 TEXT "Actions" | 81602,214284 1 0 0 "RxDataOut <= 8'h00;       //redundant data\nRxCtrlOut <= `DATA_STOP; //end of packet\nprocessRxByteWEn <= 1'b1;"
W 94 32 0 85 89 BEZIER "Transitions" | 41504,245373 45564,238486 43946,239209 48006,232322
W 91 32 4096 246 83 BEZIER "Transitions" | 118511,229192 108252,217383 97992,205574 87733,193765
L 90 89 0 TEXT "State Labels" | 51785,227035 1 0 0 "CHK_SE0\n/5/"
S 89 32 36864 ELLIPSE "States" | 51785,227035 6500 6500
A 88 83 4 TEXT "Actions" | 104179,197041 1 0 0 "processRxByteWEn <= 1'b0;\nRXBitStMachCurrState <= `IDLE_BIT_ST;"
I 86 32 0 Builtin Exit | 178157,29567
I 85 32 0 Builtin Entry | 37613,245373
L 84 83 0 TEXT "State Labels" | 82467,189957 1 0 0 "LAST_BIT\n/4/"
S 83 32 32768 ELLIPSE "States" | 82467,189957 6500 6500
W 82 17 8194 75 21 BEZIER "Transitions" | 74719,170800 71529,161085 64380,142085 64960,133312\
                                          65540,124540 74240,108880 82215,104385 90190,99890\
                                          113975,98130 125575,96970
W 81 17 0 20 75 BEZIER "Transitions" | 60627,212076 64687,205189 69782,189186 73842,182299
A 80 76 16 TEXT "Actions" | 98161,161647 1 0 0 "RxDataOut <= 8'h00;       //redundant data\nRxCtrlOut <= `DATA_START; //start of packet\nprocessRxByteWEn <= 1'b1;"
W 111 32 0 97 227 BEZIER "Transitions" | 66477,135648 66678,131226 66890,120750 67091,116328
W 108 101 0 102 106 BEZIER "Transitions" | 122599,92427 127505,85589 132688,76607 137595,69768
W 107 101 0 105 102 BEZIER "Transitions" | 101111,125648 105710,118844 110572,109896 115171,103091
I 106 101 0 Builtin Exit | 140400,69768
I 105 101 0 Builtin Entry | 97220,125648
L 103 102 0 TEXT "State Labels" | 118810,97708 1 0 0 "DESTUFF\n/6/"
S 102 101 45056 ELLIPSE "States" | 118810,97708 6500 6500
H 101 97 0 RECT 0,0,0 0 0 1 255,255,255 0 | 15700,15700 200200,263700
A 99 89 4 TEXT "Actions" | 56907,247297 1 0 0 "bitStuffError <= 1'b0;"
W 98 32 8194 89 97 BEZIER "Transitions" | 49942,220803 46756,202617 58189,166563 64651,148377
S 97 32 40964 ELLIPSE 0,0,0 0 0 1 0,255,255 1 | 66418,142124 6500 6500
L 96 97 0 TEXT "State Labels" | 66418,142124 1 0 0 "DATA"
H 122 113 0 RECT 0,0,0 0 0 1 255,255,255 0 | 15700,15700 200200,263700
C 121 118 0 TEXT "Conditions" | 90285,92809 1 0 0 "bitStuffError == 1'b1"
C 120 117 0 TEXT "Conditions" | 17125,90667 1 0 0 "RXBitCount == 4'h8 & bitStuffError == 1'b0"
W 119 32 8195 227 86 BEZIER "Transitions" | 70866,112476 88554,110332 126022,106808 138752,96624\
                                            151482,86440 167580,47791 175352,29567
W 118 32 8194 227 115 BEZIER "Transitions" | 69923,110435 79839,101323 101636,81685 111552,72573
W 117 32 8193 227 113 BEZIER "Transitions" | 65361,109992 60269,101550 49374,82448 44282,74006
W 116 32 0 83 86 BEZIER "Transitions" | 88704,188128 110546,183706 152420,173406 164480,164897\
                                        176540,156388 181096,131196 181431,113977 181766,96758\
                                        182570,51409 180962,29567
S 115 32 53252 ELLIPSE 0,0,0 0 0 1 0,255,255 1 | 116374,68216 6500 6500
L 114 115 0 TEXT "State Labels" | 116374,68216 1 0 0 "ERROR"
S 113 32 49156 ELLIPSE 0,0,0 0 0 1 0,255,255 1 | 41334,68216 6500 6500
L 112 113 0 TEXT "State Labels" | 41334,68216 1 0 0 "BYTE"
L 143 142 0 TEXT "State Labels" | 68810,217727 1 0 0 "WAIT_RDY\n/8/"
S 142 122 61440 ELLIPSE "States" | 68810,217727 6500 6500
A 141 136 4 TEXT "Actions" | 98360,168539 1 0 0 "processRxByteWEn <= 1'b0;"
W 140 122 0 136 139 BEZIER "Transitions" | 87355,157633 92394,150615 96149,127199 101189,120181
I 139 122 0 Builtin Exit | 103994,120181
I 138 122 0 Builtin Entry | 32350,235287
L 137 136 0 TEXT "State Labels" | 83564,162911 1 0 0 "SEND2\n/7/"
S 136 122 57344 ELLIPSE "States" | 83564,162911 6500 6500
H 129 115 0 RECT 0,0,0 0 0 1 255,255,255 0 | 15700,15700 200200,263700
W 159 129 0 155 251 BEZIER "Transitions" | 47328,237621 58765,237907 69242,234957 80679,235243
L 156 151 0 TEXT "State Labels" | 70001,162635 1 0 0 "CHK_RES\n/10/"
I 155 129 0 Builtin Entry | 43437,237621
I 154 129 0 Builtin Exit | 115081,122515
W 153 129 0 151 154 BEZIER "Transitions" | 75624,159375 80663,152357 107236,129533 112276,122515
A 152 151 4 TEXT "Actions" | 94367,174643 1 0 0 "processRxByteWEn <= 1'b0;\nif (RxBits == JBit)                           //if current bit is a JBit, then\n  RXBitStMachCurrState <= `IDLE_BIT_ST;       //next state is idle\nelse                                          //else\nbegin\n  RXBitStMachCurrState <= `WAIT_RESUME_ST;    //check for resume\n  resumeWaitCnt <= 0;                          \nend"
S 151 129 65536 ELLIPSE "States" | 70001,162635 6500 6500
A 148 144 16 TEXT "Actions" | 66554,198501 1 0 0 "RXBitCount <= 4'h0;\nRxDataOut <= RXByte;       \nRxCtrlOut <= `DATA_STREAM; \nprocessRxByteWEn <= 1'b1;"
W 147 122 0 138 142 BEZIER "Transitions" | 36241,235287 40301,228400 58702,226995 62762,220108
W 144 122 4096 142 136 BEZIER "Transitions" | 70118,211361 75926,204431 73609,174845 79417,167915
I 175 0 2 Builtin OutPort | 78804,245816 "" ""
L 174 175 0 TEXT "Labels" | 84804,245816 1 0 0 "RxCtrlOut[7:0]"
I 173 0 2 Builtin OutPort | 79602,240762 "" ""
L 172 173 0 TEXT "Labels" | 85602,240762 1 0 0 "RxDataOut[7:0]"
I 171 0 2 Builtin OutPort | 78239,230321 "" ""
L 170 171 0 TEXT "Labels" | 84239,230321 1 0 0 "resumeDetected"
A 169 167 4 TEXT "Actions" | 55436,189333 1 0 0 "if (RxBits != KBit)  //line must leave KBit state for the end of resume\nbegin\n  RXBitStMachCurrState <= `IDLE_BIT_ST;\n  resumeDetected <= 1'b0;   //clear resume detected flag\nend"
L 168 167 0 TEXT "State Labels" | 117624,117720 1 0 0 "CHK1\n/11/"
S 167 50 69632 ELLIPSE "States" | 117624,117720 6500 6500
I 166 50 0 Builtin Entry | 96034,145660
I 165 50 0 Builtin Exit | 139214,89780
W 164 50 0 166 167 BEZIER "Transitions" | 99925,145660 104656,138676 109248,130084 113979,123100
W 163 50 0 167 165 BEZIER "Transitions" | 121415,112442 126454,105424 131369,96798 136409,89780
A 162 40 4 TEXT "Actions" | 29424,246323 1 0 0 "if (RxBits != KBit)  //can only be a resume if line remains in Kbit state\n  RXBitStMachCurrState <= `IDLE_BIT_ST;\nelse \nbegin\n  resumeWaitCnt <= resumeWaitCnt + 1'b1; \n  //if we've waited long enough, then\n  if (resumeWaitCnt == `RESUME_WAIT_TIME_MINUS1)\n  begin   \n    RXBitStMachCurrState <= `RESUME_END_WAIT_ST; \n    resumeDetected <= 1'b1;  //report resume detected\n  end\nend"
W 161 32 0 113 86 BEZIER "Transitions" | 45583,63298 57777,53382 79524,32408 93292,27115\
                                         107061,21822 137747,20482 148467,20415 159187,20348\
                                         171381,21420 174463,22458 177545,23497 178090,26035\
                                         178157,27576
W 160 32 0 115 86 BEZIER "Transitions" | 119806,62698 125032,57070 133928,45540 139522,41252\
                                         145117,36964 157043,31068 161599,29627 166155,28187\
                                         172203,29500 175352,29567
A 191 9 4 TEXT "Actions" | 134636,218473 1 0 0 "processRxByteWEn <= 1'b0;\nRxCtrlOut <= 8'h00;\nRxDataOut <= 8'h00;\nresumeDetected <= 1'b0;\nRXBitStMachCurrState <= `IDLE_BIT_ST;\nRxBits <= 2'b00;\nRXSameBitCount <= 4'h0;\nRXBitCount <= 4'h0;\noldRXBits <= 2'b00;\nRXByte <= 8'h00;\nbitStuffError <= 1'b0;\nresumeWaitCnt <= 4'h0;\nprocessRxBitRdy <= 1'b1;"
C 188 13 0 TEXT "Conditions" | 26243,187081 1 0 0 "rst"
I 187 0 2 Builtin InPort | 183608,259648 "" ""
L 186 187 0 TEXT "Labels" | 189608,259648 1 0 0 "rst"
I 185 0 3 Builtin InPort | 183608,264702 "" ""
L 184 185 0 TEXT "Labels" | 189608,264702 1 0 0 "clk"
I 183 0 2 Builtin InPort | 152486,239964 "" ""
L 182 183 0 TEXT "Labels" | 158486,239964 1 0 0 "KBit[1:0]"
I 181 0 2 Builtin InPort | 152486,249540 "" ""
L 180 181 0 TEXT "Labels" | 158486,249540 1 0 0 "processRxBitsWEn"
I 179 0 2 Builtin InPort | 152752,245018 "" ""
L 178 179 0 TEXT "Labels" | 158752,245018 1 0 0 "RxBitsIn[1:0]"
I 177 0 2 Builtin OutPort | 78272,250604 "" ""
L 176 177 0 TEXT "Labels" | 84272,250604 1 0 0 "processRxByteWEn"
I 207 0 2 Builtin Signal | 18806,227486 "" ""
L 206 207 0 TEXT "Labels" | 21806,227486 1 0 0 "bitStuffError"
I 205 0 2 Builtin Signal | 18834,232706 "" ""
L 204 205 0 TEXT "Labels" | 21834,232706 1 0 0 "RXByte[7:0]"
I 203 0 2 Builtin Signal | 18561,238021 "" ""
L 202 203 0 TEXT "Labels" | 21561,238021 1 0 0 "oldRXBits[1:0]"
I 201 0 2 Builtin Signal | 19264,243362 "" ""
L 200 201 0 TEXT "Labels" | 22264,243362 1 0 0 "RXBitCount[3:0]"
I 199 0 2 Builtin Signal | 18422,248742 "" ""
L 198 199 0 TEXT "Labels" | 21422,248742 1 0 0 "RXSameBitCount[3:0]"
I 197 0 2 Builtin Signal | 18422,253264 "" ""
L 196 197 0 TEXT "Labels" | 21422,253264 1 0 0 "RxBits[1:0]"
I 193 0 2 Builtin Signal | 18954,263638 "" ""
L 192 193 0 TEXT "Labels" | 21954,263638 1 0 0 "RXBitStMachCurrState[1:0]"
I 211 0 2 Builtin Signal | 78080,259259 "" ""
L 210 211 0 TEXT "Labels" | 81080,259259 1 0 0 "resumeWaitCnt[3:0]"
L 209 208 0 TEXT "Labels" | 158667,234292 1 0 0 "JBit[1:0]"
I 208 0 2 Builtin InPort | 152667,234292 "" ""
L 212 213 0 TEXT "State Labels" | 42588,157720 1 0 0 "J1"
S 213 6 73748 ELLIPSE "Junction" | 42588,157720 3500 3500
H 214 213 0 RECT 0,0,0 0 0 1 255,255,255 0 | 15700,15700 200200,263700
I 215 214 0 Builtin Entry | 86360,167640
I 216 214 0 Builtin Exit | 129540,111760
W 217 214 0 215 216 BEZIER "Transitions" | 90251,167640 102382,150340 114603,129061 126735,111760
L 218 219 0 TEXT "State Labels" | 164672,85946 1 0 0 "J2"
S 219 6 77844 ELLIPSE "Junction" | 164672,85946 3500 3500
H 220 219 0 RECT 0,0,0 0 0 1 255,255,255 0 | 15700,15700 200200,263700
I 221 220 0 Builtin Entry | 86360,167640
I 222 220 0 Builtin Exit | 129540,111760
W 223 220 0 221 222 BEZIER "Transitions" | 90251,167640 102382,150340 114603,129061 126735,111760
L 226 227 0 TEXT "State Labels" | 67386,112844 1 0 0 "J3"
S 227 32 81940 ELLIPSE "Junction" | 67386,112844 3500 3500
H 228 227 0 RECT 0,0,0 0 0 1 255,255,255 0 | 15700,15700 200200,263700
I 229 228 0 Builtin Entry | 86360,167640
I 230 228 0 Builtin Exit | 129540,111760
W 231 228 0 229 230 BEZIER "Transitions" | 90251,167640 102488,150092 114497,129309 126735,111760
L 232 233 0 TEXT "Labels" | 156002,229172 1 0 0 "processRxBitRdy"
I 233 0 2 Builtin OutPort | 150002,229172 "" ""
A 234 67 16 TEXT "Actions" | 139445,159206 1 0 0 "processRxBitRdy <= 1'b1;"
A 237 102 2 TEXT "Actions" | 35548,248222 1 0 0 "if (RxBits == oldRXBits)                 //if the current 'RxBits' are the same as the old 'RxBits', then\nbegin\n  RXSameBitCount <= RXSameBitCount + 1'b1;  //inc 'RXSameBitCount'\n  if (RXSameBitCount == `MAX_CONSEC_SAME_BITS) //if 'RXSameBitCount' == 7 there has been a bit stuff error\n    bitStuffError <= 1'b1;                         //flag 'bitStuffError'\n  else                                          //else no bit stuffing error\n  begin\n    RXBitCount <= RXBitCount + 1'b1;\n    if (RXBitCount != 4'h7) begin\n      processRxBitRdy <= 1'b1;                   //early indication of ready\n    end\n    RXByte <= { 1'b1, RXByte[7:1]};              //RZ bit = 1 (ie no change in 'RxBits')\n  end\nend\nelse                                            //else current 'RxBits' are different from old 'RxBits'\nbegin\n  if (RXSameBitCount != `MAX_CONSEC_SAME_BITS)  //if this is not the RZ 0 bit after 6 consecutive RZ 1s, then\n  begin\n    RXBitCount <= RXBitCount + 1'b1;\n    if (RXBitCount != 4'h7) begin\n      processRxBitRdy <= 1'b1;                       //early indication of ready\n    end\n    RXByte <= {1'b0, RXByte[7:1]};             //RZ bit = 0 (ie current'RxBits' is different than old 'RxBits')\n  end\n  RXSameBitCount <= 4'h1;                      //reset 'RXSameBitCount'\nend\noldRXBits <= RxBits;"
L 238 239 0 TEXT "Labels" | 158372,254090 1 0 0 "processRxByteRdy"
I 239 0 2 Builtin InPort | 152372,254090 "" ""
L 240 241 0 TEXT "State Labels" | 127967,178402 1 0 0 "WAIT_PRB_RDY\n/12/"
S 241 17 86016 ELLIPSE "States" | 127967,178402 6500 6500
W 242 17 8193 75 241 BEZIER "Transitions" | 83767,176813 93495,176723 111780,177768 121508,177678
C 243 242 0 TEXT "Conditions" | 86880,174058 1 0 0 "RxBits == KBit"
C 244 76 0 TEXT "Conditions" | 125584,169201 1 0 0 "processRxByteRdy == 1'b1"
L 245 246 0 TEXT "State Labels" | 123442,233426 1 0 0 "WAIT_PRB_RDY\n/13/"
S 246 32 90112 ELLIPSE "States" | 123442,233426 6500 6500
W 247 32 8193 89 246 BEZIER "Transitions" | 58283,227149 73079,228913 102192,230896 116988,232660
C 248 247 0 TEXT "Conditions" | 63893,236141 1 0 0 "RxBits == `SE0"
C 249 91 0 TEXT "Conditions" | 115810,224225 1 0 0 "processRxByteRdy == 1'b1"
L 250 251 0 TEXT "State Labels" | 87178,235174 1 0 0 "WAIT_RDY\n/14/"
S 251 129 94208 ELLIPSE "States" | 87178,235174 6500 6500
W 252 129 0 251 151 BEZIER "Transitions" | 86179,228754 82949,208010 75931,189290 72701,168546
C 253 252 0 TEXT "Conditions" | 86956,225452 1 0 0 "processRxByteRdy == 1'b1"
A 254 252 16 TEXT "Actions" | 67337,205212 1 0 0 "RxDataOut <= 8'h00;       //redundant data\nRxCtrlOut <= `DATA_BIT_STUFF_ERROR; \nprocessRxByteWEn <= 1'b1;"
C 255 144 0 TEXT "Conditions" | 72542,211451 1 0 0 "processRxByteRdy == 1'b1"
END