rocco -
The reason that there are no hardware emulators for the S08 is that the address and data bus signals are not available on external pins. In the HC08's, there were test modes that connected the internal address and data to the outside world.
- Rocky
Hello Rocky,
Rockyroad wrote:
The reason that there are no hardware emulators for the S08 is that the address and data bus signals are not available on external pins. In the HC08's, there were test modes that connected the internal address and data to the outside world.
This would seem unlikely for devices such as the HC08QT/QY series, with low pin count, yet hardware emulators do exist for them.
Regards,
Mac
Mac -
I was having the same reservations about my answer as I wrote it. So I asked around this morning after I saw your post. The answer for both of us is that the small pin count HC08's like the QT/QY are emulated using similar, but larger pin count devices. For the Freescale EM board for the MMDS and MMEVS, the QT/QY was originally emulated with a 908EY16.
- Rocky