Bus training with interconnected dice
US12235784B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2022 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Jan 15, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/1678
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described apparatuses and methods facilitate bus training with multiple dice, such as multiple memory dice. A controller can communicate with multiple dice to perform bus training by sending a test pattern and receiving in return a feedback pattern indicative of the bits detected by the dice. Because suitable signal timing can differ between dice, even those using the same bus, a controller may train each die separately from the others. In some situations, however, individualized training may be infeasible. To accommodate such situations, logic associated with two or more dice can combine, using at least one logical operation, bits as detected from the test pattern into a combined feedback pattern. A timing parameter that is jointly suitable for multiple dice can be determined, and the bus training may be concluded, responsive to the combined feedback pattern matching the test pattern. The multiple dice may be stacked or linked.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.