...
The ITkPixV1.1 Digital Quad is based on the V2.4 common Quad hybrid design with its schematics indicating that only two GTX output of each chip are physically connected to the module ZIF. The quad module ZIF interface and further connectivity details of the to the V1.0 Quad Readout Adaptor with 1 DP connector serving 1 line per FE (schematics) via straight-through module Q/C data flex is captured in the "ITkPixV1-Quad" tab of the RD53A Ring Connectivity Stanford Drive GoogleSheet. The Quad Readout Adaptor further down selects the data GTX channels to only keep one data GTX per FE to form the 4 channels on the single DP connector:
| Module | Readout adaptor | Alex*DP Lanes/Pins | |||||
|---|---|---|---|---|---|---|---|
| Chip | GTX | DP lane | DP pin | Schematics | PCB silkscreenDP Pin | ||
1 | 2 | 1 | 4,6 | 7,9 | |||
| 2 | 0 | 0 | 1,3 | 4,6 | |||
| 3 | 3 | 2 | 7,9 | 1,3 | |||
| 4 | 0 | 3 | 10,12 | 10,12 | |||
...