LM4F232H5BB 的IBIS 模型测试问题



以下是客户提供的一些反馈,有牛人能帮忙解决下么

1: Model GPIOHIB_PZ_3P3, the [Falling Waveform] with [R_fixture] = 50 Ohms and [V_fixture_min] = 0V has MIN column DC endpoints of 0.03V and 0.32V. But an equivalent load applied to the model’s I-V tables yields different voltages (0.00V and 0.32V).

2: Model GPIOHIB_PD_3P3, the [Rising Waveform] with [R_fixture] = 50 Ohms and [V_fixture_min] = 0V has MIN column DC endpoints of 0.00V and 0.27V. But an equivalent load applied to the model’s I-V tables yields different voltages (-0.00V and 0.31V).、

3: Model GPIOHIB_PD_3P3, the [Falling Waveform] with [R_fixture] = 50 Ohms and [V_fixture_min] = 0V has MIN column DC endpoints of 0.03V and 0.32V. But an equivalent load applied to the model’s I-V tables yields different voltages (-0.00V and 0.31V).