11# WS2812B Nominal Timing Register Values
22
3- WS2812 Nominal High+Low Timing: 1.25us +/- 600ns
3+ WS2812 (v3) Nominal High+Low Timing: 1.25us +/- 600ns
44
55
66### Logic 0 Timing
77
88Logic 0 | Nominal (ns) | Tolerance (ns)
99------- | ------------ | --------------
10- TOH | 350 | 150
11- TOL | 800 | 150
12- TOH+TOL | 1150 | 600
10+ TOH | 400 | 150
11+ TOL | 850 | 150
12+ TOH+TOL | 1250 | 600
1313
1414
1515### Logic 1 Timing
1616
1717Logic 1 | Nominal (ns) | Tolerance (ns)
1818------- | ------------ | --------------
19- T1H | 700 | 150
20- T1L | 600 | 150
21- T1H+T1L | 1300 | 600
19+ T1H | 850 | 150
20+ T1L | 400 | 150
21+ T1H+T1L | 1250 | 600
2222
2323
2424### Reset Code
2525
2626Operation | Minimum (ns) | Tolerance (ns)
2727---------- | ------------ | --------------
28- Reset Code | 280000 | -
28+ Reset Code | 50000 | -
2929
3030
3131### Oscillator
@@ -37,27 +37,27 @@ OSCH | 44.33 | 22.5581
3737
3838### Logic 0 Register Values
3939
40- Logic 0 | Divisor | Register Value | FPGA Timing (ns)
41- ------- | -------- | -------------- | ----------------
42- TOH | 15.5155 | 16 | 360.93
43- TOL | 35.464 | 36 | 812.09
44- TOH+TOL | 50.9795 | 52 | 1173.02
40+ Logic 0 | Divisor | Register Value | FPGA Timing (ns)
41+ ------- | ------- | -------------- | ----------------
42+ TOH | 17.732 | 18 | 406.05
43+ TOL | 37.6805 | 38 | 857.21
44+ TOH+TOL | 55.4125 | 56 | 1263.25
4545
4646
4747### Logic 1 Register Values
4848
49- Logic 1 | Divisor | Register Value | FPGA Timing (ns)
50- ------- | ------- | -------------- | ----------------
51- T1H | 31.031 | 32 | 721.86
52- T1L | 26.598 | 27 | 609.07
53- T1H+T1L | 57.629 | 59 | 1330.93
49+ Logic 1 | Divisor | Register Value | FPGA Timing (ns)
50+ ------- | ------- | --------------- | ----------------
51+ T1H | 37.6805 | 38 | 857.21
52+ T1L | 17.732 | 18 | 406.05
53+ T1H+T1L | 55.4125 | 56 | 1263.25
5454
5555
5656### Reset Code Register Value
5757
5858Operation | Divisor | Register Value | FPGA Timing (ns)
5959---------- | -------- | -------------- | ----------------
60- Reset Code | 48.48593 | 49 | 282968.64
60+ Reset Code | 8.658203 | 9 | 51973.83
6161
6262```
6363Notes:
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