发表于
2008-7-16 21:04:40
5.2.3 仿真
5.2.3.1 uni-direction Point-point 略。
5.2.3.2 bi-direction Point-point
(1)PCI: Freescale MPC8247的PCI interface与Broadcom BCM5645 PCI互联，2in走线，33MHz。HyperLynx.
A1不端接 MPC8247 to BCM5645
A2不端接 BCM5645 to MPC8247
B1 双向端接MPC8247 to BCM5645(39ohm)
B2 双向端接 BCM5645 to MPC8247(39ohm)
端接之后，信号质量有明显的改善。
(2)localbus: PLX9054 localbus 和AudioCodes AC491(DSP) localbus互联。5in，35MHz。
A1 不端接 PLX9054 to AC491
A2 不端接 AC491 to PLX9054
B1 端接 PLX9054 to AC491 (33ohm)
B2 端接 AC491 to PLX9054 (33ohm)
