Conditions = TX and RX ATmega328 @ 16 MHz
             CE and CSN on same pins
             
250KBPS bitrate
  Starting sync
Polling
  Received 1
  Received 2
  Received 3
  Received 4
Interrupts
  Received 5
  Received 6
  Received 7
  Received 8
ACK payloads
  Received 9
    Add ACK B 255
  Received 10
    Add ACK B 254
  Received 11
  Received 12
    Add ACK B 253
Polling bitrate
  112 packets 28672 bps
  124 packets 31744 bps
  124 packets 31744 bps
  125 packets 32000 bps
Interrupts bitrate
  291 packets 74496 bps
  318 packets 81408 bps
  321 packets 82093 bps
  317 packets 81152 bps
Polling bitrate NO_ACK
  114 packets 29184 bps
  124 packets 31744 bps
  124 packets 31744 bps
  125 packets 32000 bps
Interrupts bitrate NO_ACK
  313 packets 80128 bps
  350 packets 89600 bps
  347 packets 88832 bps
  350 packets 89600 bps
Polling bitrate ACK payload
  111 packets A76 B35 28416 bps
  123 packets A76 B47 31456 bps
  124 packets A93 B31 31744 bps
  125 packets A92 B33 32000 bps
Interrupts bitrate ACK payload
  205 packets A133 B72 52480 bps
  242 packets A167 B75 61952 bps
  238 packets A152 B86 60928 bps
  250 packets A153 B97 64000 bps
Polling bitrate all packet sizes
  Size 1 357 packets 952 bps
  Size 2 319 packets 1701 bps
  Size 3 319 packets 2551 bps
  Size 4 319 packets 3402 bps
  Size 5 318 packets 4240 bps
  Size 6 318 packets 5088 bps
  Size 7 317 packets 5917 bps
  Size 8 316 packets 6741 bps
  Size 9 313 packets 7512 bps
  Size 10 312 packets 8320 bps
  Size 11 311 packets 9122 bps
  Size 12 308 packets 9856 bps
  Size 13 308 packets 10677 bps
  Size 14 308 packets 11498 bps
  Size 15 308 packets 12320 bps
  Size 16 307 packets 13098 bps
  Size 17 308 packets 13962 bps
  Size 18 308 packets 14784 bps
  Size 19 308 packets 15605 bps
  Size 20 308 packets 16426 bps
  Size 21 307 packets 17192 bps
  Size 22 307 packets 18010 bps
  Size 23 307 packets 18829 bps
  Size 24 308 packets 19712 bps
  Size 25 308 packets 20533 bps
  Size 26 308 packets 21354 bps
  Size 27 308 packets 22176 bps
  Size 28 308 packets 22997 bps
  Size 29 308 packets 23818 bps
  Size 30 308 packets 24640 bps
  Size 31 308 packets 25461 bps
  Size 32 309 packets 26368 bps
Polling bitrate all ACK sizes
  ACK Size 1 339 packets 28928 bps
  ACK Size 2 308 packets 26282 bps
  ACK Size 3 308 packets 26282 bps
  ACK Size 4 308 packets 26282 bps
  ACK Size 5 308 packets 26282 bps
  ACK Size 6 308 packets 26282 bps
  ACK Size 7 308 packets 26282 bps
  ACK Size 8 308 packets 26282 bps
  ACK Size 9 308 packets 26282 bps
  ACK Size 10 307 packets 26197 bps
  ACK Size 11 307 packets 26197 bps
  ACK Size 12 308 packets 26282 bps
  ACK Size 13 308 packets 26273 bps
  ACK Size 14 308 packets 26282 bps
  ACK Size 15 308 packets 26282 bps
  ACK Size 16 308 packets 26282 bps
  ACK Size 17 308 packets 26282 bps
  ACK Size 18 308 packets 26282 bps
  ACK Size 19 308 packets 26282 bps
  ACK Size 20 308 packets 26282 bps
  ACK Size 21 308 packets 26282 bps
  ACK Size 22 307 packets 26197 bps
  ACK Size 23 307 packets 26197 bps
  ACK Size 24 307 packets 26197 bps
  ACK Size 25 306 packets 26112 bps
  ACK Size 26 308 packets 26282 bps
  ACK Size 27 308 packets 26282 bps
  ACK Size 28 308 packets 26282 bps
  ACK Size 29 308 packets 26282 bps
  ACK Size 30 307 packets 26197 bps
  ACK Size 31 308 packets 26282 bps
  ACK Size 32 26 packets 2218 bps

1MBPS bitrate
  Starting sync
Polling
  Received 13
  Received 14
  Received 15
  Received 16
Interrupts
  Received 17
  Received 18
  Received 19
  Received 20
ACK payloads
  Received 21
    Add ACK B 252
  Received 22
    Add ACK B 251
  Received 23
  Received 24
    Add ACK B 250
Polling bitrate
  553 packets 141568 bps
  605 packets 154880 bps
  589 packets 150784 bps
  558 packets 142848 bps
Interrupts bitrate
  527 packets 134912 bps
  586 packets 150016 bps
  591 packets 151296 bps
  580 packets 148480 bps
Polling bitrate NO_ACK
  325 packets 83200 bps
  360 packets 92160 bps
  361 packets 92416 bps
  360 packets 92160 bps
Interrupts bitrate NO_ACK
  884 packets 226304 bps
  973 packets 249088 bps
  975 packets 249600 bps
  959 packets 245504 bps
Polling bitrate ACK payload
  172 packets A106 B66 44032 bps
  187 packets A121 B66 47872 bps
  171 packets A122 B49 43776 bps
  174 packets A123 B51 44544 bps
Interrupts bitrate ACK payload
  295 packets A219 B76 75520 bps
  314 packets A214 B100 80384 bps
  311 packets A191 B120 79360 bps
  305 packets A209 B96 78002 bps
Polling bitrate all packet sizes
  Size 1 2015 packets 5373 bps
  Size 2 1797 packets 9584 bps
  Size 3 1755 packets 14040 bps
  Size 4 1792 packets 19114 bps
  Size 5 1773 packets 23640 bps
  Size 6 1807 packets 28912 bps
  Size 7 1787 packets 33357 bps
  Size 8 1839 packets 39232 bps
  Size 9 1806 packets 43344 bps
  Size 10 1813 packets 48346 bps
  Size 11 1783 packets 52301 bps
  Size 12 1777 packets 56864 bps
  Size 13 1797 packets 62296 bps
  Size 14 1703 packets 63578 bps
  Size 15 1750 packets 70000 bps
  Size 16 1714 packets 73130 bps
  Size 17 1714 packets 77701 bps
  Size 18 1675 packets 80400 bps
  Size 19 1639 packets 83042 bps
  Size 20 1733 packets 92426 bps
  Size 21 1647 packets 92232 bps
  Size 22 1598 packets 93749 bps
  Size 23 1554 packets 95312 bps
  Size 24 1505 packets 96320 bps
  Size 25 1512 packets 100800 bps
  Size 26 1502 packets 104138 bps
  Size 27 1472 packets 105984 bps
  Size 28 1470 packets 109760 bps
  Size 29 1457 packets 112674 bps
  Size 30 1508 packets 120640 bps
  Size 31 1505 packets 124413 bps
  Size 32 1475 packets 125866 bps
Polling bitrate all ACK sizes
  ACK Size 1 1164 packets 99328 bps
  ACK Size 2 1009 packets 86101 bps
  ACK Size 3 990 packets 84480 bps
  ACK Size 4 966 packets 82432 bps
  ACK Size 5 959 packets 81834 bps
  ACK Size 6 916 packets 78165 bps
  ACK Size 7 895 packets 76373 bps
  ACK Size 8 856 packets 73045 bps
  ACK Size 9 834 packets 71168 bps
  ACK Size 10 793 packets 67669 bps
  ACK Size 11 804 packets 68608 bps
  ACK Size 12 752 packets 64170 bps
  ACK Size 13 736 packets 62805 bps
  ACK Size 14 765 packets 65280 bps
  ACK Size 15 665 packets 56746 bps
  ACK Size 16 625 packets 53333 bps
  ACK Size 17 597 packets 50944 bps
  ACK Size 18 561 packets 47872 bps
  ACK Size 19 553 packets 47189 bps
  ACK Size 20 570 packets 48640 bps
  ACK Size 21 555 packets 47360 bps
  ACK Size 22 511 packets 43605 bps
  ACK Size 23 505 packets 43093 bps
  ACK Size 24 497 packets 42410 bps
  ACK Size 25 479 packets 40874 bps
  ACK Size 26 450 packets 38400 bps
  ACK Size 27 455 packets 38826 bps
  ACK Size 28 445 packets 37973 bps
  ACK Size 29 446 packets 38058 bps
  ACK Size 30 421 packets 35925 bps
  ACK Size 31 422 packets 36010 bps
  ACK Size 32 20 packets 1706 bps

2MBPS bitrate
  Starting sync
Polling
  Received 25
  Received 26
  Received 27
  Received 28
Interrupts
  Received 29
  Received 30
  Received 31
  Received 32
ACK payloads
  Received 33
    Add ACK B 249
  Received 34
    Add ACK A 1
  Received 35
  Received 36
    Add ACK B 248
Polling bitrate
  458 packets 117248 bps
  497 packets 127232 bps
  511 packets 130815 bps
  508 packets 130048 bps
Interrupts bitrate
  780 packets 199680 bps
  869 packets 222464 bps
  870 packets 222720 bps
  868 packets 222208 bps
Polling bitrate NO_ACK
  504 packets 129024 bps
  560 packets 143360 bps
  568 packets 145408 bps
  576 packets 147456 bps
Interrupts bitrate NO_ACK
  1144 packets 292864 bps
  1252 packets 320512 bps
  1255 packets 321024 bps
  1253 packets 320768 bps
Polling bitrate ACK payload
  644 packets A418 B226 164864 bps
  722 packets A498 B224 184832 bps
  711 packets A469 B242 181834 bps
  726 packets A473 B253 185856 bps
Interrupts bitrate ACK payload
  655 packets A435 B220 167680 bps
  736 packets A490 B247 188416 bps
  740 packets A503 B237 189440 bps
  739 packets A520 B219 188928 bps
Polling bitrate all packet sizes
  Size 1 2178 packets 5808 bps
  Size 2 2006 packets 10698 bps
  Size 3 2059 packets 16472 bps
  Size 4 2073 packets 22112 bps
  Size 5 2057 packets 27426 bps
  Size 6 1995 packets 31920 bps
  Size 7 1952 packets 36437 bps
  Size 8 1836 packets 39168 bps
  Size 9 1834 packets 44016 bps
  Size 10 1537 packets 40986 bps
  Size 11 1577 packets 46258 bps
  Size 12 1570 packets 50240 bps
  Size 13 1571 packets 54461 bps
  Size 14 1585 packets 59153 bps
  Size 15 1547 packets 61880 bps
  Size 16 1549 packets 66090 bps
  Size 17 1554 packets 70448 bps
  Size 18 1570 packets 75360 bps
  Size 19 1543 packets 78178 bps
  Size 20 1531 packets 81653 bps
  Size 21 1412 packets 79072 bps
  Size 22 1367 packets 80197 bps
  Size 23 1364 packets 83658 bps
  Size 24 1321 packets 84544 bps
  Size 25 1201 packets 80066 bps
  Size 26 1212 packets 84032 bps
  Size 27 1240 packets 89280 bps
  Size 28 1261 packets 94154 bps
  Size 29 1274 packets 98522 bps
  Size 30 1299 packets 103920 bps
  Size 31 1303 packets 107714 bps
  Size 32 1321 packets 112725 bps
Polling bitrate all ACK sizes
  ACK Size 1 1165 packets 99413 bps
  ACK Size 2 1030 packets 87893 bps
  ACK Size 3 1034 packets 88234 bps
  ACK Size 4 1031 packets 87978 bps
  ACK Size 5 1032 packets 88064 bps
  ACK Size 6 1035 packets 88320 bps
  ACK Size 7 1031 packets 87978 bps
  ACK Size 8 1028 packets 87722 bps
  ACK Size 9 1025 packets 87466 bps
  ACK Size 10 1055 packets 90026 bps
  ACK Size 11 1044 packets 89088 bps
  ACK Size 12 1063 packets 90709 bps
  ACK Size 13 1077 packets 91904 bps
  ACK Size 14 1087 packets 92757 bps
  ACK Size 15 1093 packets 93269 bps
  ACK Size 16 1090 packets 93013 bps
  ACK Size 17 1092 packets 93184 bps
  ACK Size 18 1072 packets 91477 bps
  ACK Size 19 1096 packets 93525 bps
  ACK Size 20 1089 packets 92928 bps
  ACK Size 21 1077 packets 91904 bps
  ACK Size 22 1084 packets 92501 bps
  ACK Size 23 1107 packets 94464 bps
  ACK Size 24 1719 packets 146688 bps
  ACK Size 25 1753 packets 149589 bps
  ACK Size 26 1829 packets 156074 bps
  ACK Size 27 1719 packets 146688 bps
  ACK Size 28 1761 packets 150272 bps
  ACK Size 29 1654 packets 141141 bps
  ACK Size 30 1638 packets 139776 bps
  ACK Size 31 1692 packets 144384 bps
  ACK Size 32 22 packets 1877 bps