Intel® 820E Chipset

R

Table 45. USB

134

Table 46. LAN Connect I/F

135

Table 47. AC’97

136

Table 48. ICH2 Decoupling

136

Table 49. CK-SKS Clocking

137

Table 50. RTC

137

Table 51. AGTL+ Parameters for Example Calculations1,2

143

Table 52. Example TFLT_MAX Calculations for 133 MHz Bus1

144

Table 53. Example TFLT_MIN Calculations1 (Frequency Independent)

145

Table 54. Trace Width Space Guidelines

148

Table 55. Intel® 820E Chipset Platform System Clocks

163

Table 56. Intel® 820E Chipset Platform Clock Skews

165

Table 57. Intel® 820E Chipset Platform System Clock Cross-Reference

167

Table 58. Placement Guidelines for Motherboard Routing Lengths (Direct RDRAM*

 

Clock Routing Length Guidelines)

170

Table 59. External DRCG Component Values

172

Table 60. Unused Output Termination

174

Table 61. 28 Stack-Up Examples

179

Table 62. 3D Field Solver vs. ZCALC

180

Table 63. Intel® 820E Chipset Component Thermal Design Power

193

Table 64. Glue Chip Vendors

194

Design Guide

11

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Intel 820E manual 135