F.3. TCK frequencies

Table F.3 gives the values that must be entered into the TCK fields on the JTAG settings dialog for a particular TCK frequency. For example, for a 3.33MHz TCK rate, use a value of 2 for TCK HIGH and TCK LOW.

Table F.3. TCK frequencies

Frequency (kHz)

Half- period (ns)

Value

Frequency (kHz)

Half- period (ns)

Value

10000.00

50

0

454.55

1100

21

5000.00

100

1

434.78

1150

22

3333.33

150

2

416.67

1200

23

2500.00

200

3

400.00

1250

24

2000.00

250

4

384.62

1300

25

1666.67

300

5

370.37

1350

26

1428.57

350

6

357.14

1400

27

1250.00

400

7

344.83

1450

28

1111.11

450

8

333.33

1500

29

1000.00

500

9

322.58

1550

30

909.09

550

10

312.50

1600

31

833.33

600

11

294.12

1700

48

769.23

650

12

277.78

1800

49

714.29

700

13

263.16

1900

50

666.67

750

14

250.00

2000

51

625.00

800

15

238.10

2100

52

588.24

850

16

227.27

2200

53

555.56

900

17

217.39

2300

54

526.32

950

18

208.33

2400

55

500.00

1000

19

200.00

2500

56

476.19

1050

20

192.31

2600

57

185.19

2700

58

59.52

8400

116

178.57

2800

59

56.82

8800

117

172.41

2900

60

54.35

9200

118

166.67

3000

61

52.08

9600

119

147.06

3400

80

50.00

10000

120

138.89

3600

81

48.08

10400

121

131.58

3800

82

46.30

10800

122

125.00

4000

83

44.64

11200

123

119.05

4200

84

43.10

11600

124

113.64

4400

85

41.67

12000

125

108.70

4600

86

40.32

12400

126

104.17

4800

87

39.06

12800

127

100.00

5000

88

36.76

13600

144

96.15

5200

89

34.72

14400

145

92.59

5400

90

32.89

15200

146

89.29

5600

91

31.25

16000

147

86.21

5800

92

29.76

16800

148

83.33

6000

93

28.41

17600

149

80.65

6200

94

27.17

18400

150

78.13

6400

95

26.04

19200

151

73.53

6800

112

25.00

20000

152

69.44

7200

113

24.04

20800

153

65.79

7600

114

23.15

21600

154

62.50

8000

115

22.32

22400

155

21.55

23200

156

7.44

67200

212

20.83

24000

157

7.10

70400

213

20.16

24800

158

6.79

73600

214

19.53

25600

159

6.51

76800

215

18.38

27200

176

6.25

80000

216

17.36

28800

177

6.01

83200

217

16.45

30400

178

5.79

86400

218

15.63

32000

179

5.58

89600

219

14.88

33600

180

5.39

92800

220

14.20

35200

181

5.21

96000

221

13.59

36800

182

5.04

99200

222

13.02

38400

183

4.88

102400

223

12.50

40000

184

4.60

108800

240

12.02

41600

185

4.34

115200

241

11.57

43200

186

4.11

121600

242

11.16

44800

187

3.91

128000

243

10.78

46400

188

3.72

134400

244

10.42

48000

189

3.55

140800

245

10.08

49600

190

3.40

147200

246

9.77

51200

191

3.26

153600

247

9.19

54400

208

3.13

160000

248

8.68

57600

209

3.00

166400

249

8.22

60800

210

2.89

172800

250

7.81

64000

211

2.79

179200

251

2.69

185600

252

2.52

198400

254

2.60

192000

253

2.44

204800

255

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