This is thought to be due to the fact that communication with the ICE is completely impossible.
Is the IE-70000-PC-IF-C driver correctly incorporated?
Also, have the settings been correctly performed?
If these have not yet been done, perform the settings according to the contents of the PC-IF_J.TXT file in the ID78K0 disk.
If the driver has already been incorporated and correctly set, incorrect settings of the ICE itself or improper contact are possible causes, so please check these points again.