PSOC5 GPIO奇怪行为

在我的项目中，我使用PSoC5FTK。
GPIO奇怪的行为已经被检测到。两个子系统，两个问题。第一个红外接收器，连接到P5〔1〕。在接收周期（RC6协议）中存在雪崩中断Req，1000和更多。GPIO设置（CMOS，TTL，上拉，下拉和其他）没有任何效果。脉冲清晰，无噪声，无抖动；前端也正常。只有外部施密特触发器（7AHC14）RC接收机正常工作。示波器上的脉冲图象（在施密特和之前）没有差别（只有一个-触发前端是直的）。
在第二子系统症状相似。正交编码器忽略脉冲。（1000 CPR编码器）。在100个完整的轴演化中，有700到800个丢失的脉冲。示波器画面很好，没有相移之间的通道，无抖动，无噪音，锋很清楚。良好的编码器。但它只能74ahc14通道信号预处理后。
我想，这psoc5是前超级敏感信号持续时间。有人能告诉我吗？



     以下为原文
  In my project I use PSOC5 FTK.
    GPIO strange behavior has been detected. Two subsystems, two problems.
First - IR receiver, connected to P5[1]. In receive cycle (RC6 protocol) there are avalanche interrupt req., 1000 and more. GPIO settings ( CMOS, TTL, pull-up, pull-down and others ) have no effect. Pulses are clear, no noise, no jitter; fronts normal too.
Only with external shmitt trigger (74AHC14) RC receiver work normally. Pulses picture on oscilloscope (after shmitt and before) doesn't differ (omly one - after trigger fronts are little straight).
    In second subsystem symptoms are similar. Quadrature encoder misses pulses. (1000 cpr encoder). On 100 full shaft evolutions there are 700 - 800 missed pulses. Oscilloscope picture is very good, no phase shift between channels, no jitter, no noise, fronts very clear. Good encoder. But it works only after 74AHC14 channels signal precondition.
    I think, that PSOC5 is super sensitive to signal front duration.  Can anyone tell something about it?