Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

IPL outputs of Paula should be open drain #16

Closed
nretro opened this issue Jul 21, 2023 · 0 comments
Closed

IPL outputs of Paula should be open drain #16

nretro opened this issue Jul 21, 2023 · 0 comments

Comments

@nretro
Copy link

nretro commented Jul 21, 2023 •
edited
Loading

I've seen die shots, that suggest, that in a real paula those outputs are open drain. If they where push-pull, the ususal NMI switch (pulling IPL2-IPL0 straight to GND) could kill the IC.

Therefore only 0 or Z should be assigned to ipl_n in Paula.v
nonarkitten added a commit that referenced this issue Aug 8, 2023
@nonarkitten
Update Paula.v
692dff7 
Fixes issue #16 IPL outputs are now Z in place of high.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
2 participants
@nonarkitten @nretro