IP PortfolioPhysical IPtest structures and process monitors
of_ring_osc
Ring oscillator process monitor
Maturity plannedTargets ASIC (CMOS) onlyDifficulty MediumPriority 1
Ring oscillators of several cell types and Vt flavors with on-die divider and counter readout for speed binning and model correlation.
Planned. This block is specified in the catalog with its interfaces and targets. No implementation exists yet; the skeleton command below generates a lint-clean shell with its ports and registers.
Interfaces
| Port | Direction | Kind | Width | Notes |
|---|---|---|---|---|
| ctrl | in/out | APB control bus | 32 | Control and status registers, including ID, VERSION and STATUS |
| ro_out | out | clock | 1 |
Standards
No external standard applies.
More in test structures and process monitors
| ID | Block | Maturity |
|---|---|---|
| of_matching_arrays | Device matching test arrays | planned |
| of_pcm_si | Silicon process control monitor set | planned |
| of_rel_struct | Reliability test structures | planned |
| of_sram_yield | SRAM yield and bitmap test vehicle | planned |
| of_thermal_test | Thermal test structures | planned |
| of_crack_detect | Die crack and moisture detector | planned |