File size: 2,335 Bytes
caddd62
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
## Background

This is level 3 of 5 and continues the work of the earlier levels. The new files for this level are in `workspace/t3/`. The records from the start are in `workspace/t1/`, and the earlier results are in `workspace/t1/results/` to `workspace/t2/results/`.

## Task

Subject: IHP main before the freeze

Hello,

A colleague sent me a note about IHP's SRAM update, forwarded in tapeout-2026/mail. Jonas fetched main as IHP-Open-PDK; the snapshot is 5e6d592e4002946a4616f798c357f0f3c06cf3b6. Before the flow freeze I want a reviewable re-pin to that commit, together with your recommendation on taking it. Please keep to your memory recommendation and the sign-off coverage from your IO review. The review minutes are in tapeout-2026.

Please prepare the manifest for ihp13/pdk as you would commit it, and any corresponding change to our own Croc tree as a patch against croc/. We need the library set to support the memory configuration you recommended and to remain usable by the simulation and implementation flows. Explain what changes for us, demonstrate that the delivered configuration preserves memory operation through startup, control-register writes, word and byte accesses and idle requests, and any issue that should stay open.

Qualify the mapped memory implementation with the refreshed views at the corners you established. How much of the read cycle remains for downstream logic, and how does that compare with your architecture budget? Include the basis and limits of that timing result in the update note so we can judge the re-pin's implementation consequences.

Put these in workspace/t3/results/pdk_manifest.csv, workspace/t3/results/croc.patch.txt and workspace/t3/results/upgrade_note.txt. I want the concrete update and a short note I can read alongside it before deciding.

Best,
Anke

## Input

- `workspace/t1/`: the records supplied with the work (`croc/`, `tapeout-2026/`).
- `workspace/t2/`: the files that came with level t2 (`tapeout-2026/`, `tapeout-archive/`).
- `workspace/t3/`: the files that came with level t3 (`IHP-Open-PDK/`, `tapeout-2026/`).
- `workspace/t1/results/`: the results of level t1.
- `workspace/t2/results/`: the results of level t2.

## Output

- `workspace/t3/results/pdk_manifest.csv`
- `workspace/t3/results/croc.patch.txt`
- `workspace/t3/results/upgrade_note.txt`