modelsim inversion

Hi Pete - thanks for replying. I tried to attach a jpg, but unless it is a web-based image or a smilie I cannot see how to get it put up here. Here's the story so far: I am using pin 80 for serial data input, clocked in at around 5MHz. Modelsim shows the test data pattern on pin 80, 0xA535. This is linked using a wire in the schematic to the D input of a D-type flip flop (DFF). Modelsim shows this D-input (inst99/dffin) having inverted data 0x5ACA! I am fully expecting problems with clocking and garbled results from the Q output, but I really hoped that the signal would get to the D-input intact first. On the schematic the DFF can be right-clicked to give a properties box. In there it shows (albeit greyed out) that all ports have no additional inversion. The preset and clear are active low but this is not mentioned. Is there an easy way to get an attachment added to explain further? :confused: Ray