SPRUJD4A December 2024 – November 2025 AM62D-Q1
The following sequence will occur for each VBUSP write to the doorbell register (RINGRT[a]_RT_DB) for a ring:
RINGACC extracts ring number from config address
RINGACC looks up ring state using ring number
RINGACC adds doorbell ring value to both HW and SW occupancies for ring
RINGACC re-evaluates pending bit for ring