1. 1. MCU Specification
2. 2. Reference ROM Specification
3. 1. 2.1. Device Ownership Transfer
4. 3. Runtime Specification
5. 1. 3.1. PLDM Package
   2. 3.2. Flash Layout
   3. 3.3. Flash Controller
   4. 3.4. Image Loading
   5. 3.5. MCTP
   6. 3.6. SPDM
   7. 1. 3.6.1. PCI DOE
      2. 3.6.2. IDE Key Management
      3. 3.6.3. TDISP
   8. 3.7. PLDM
   9. 3.8. Firmware Update
   10. 3.9. External Mailbox Commands
   11. 3.10. External MCTP VDM Commands
   12. 3.11. Unified External Command Handling
   13. 3.12. Logging
   14. 3.13. In-Field Fuse Programming
6. 4. Running with an FPGA
7. 5. Caliptra Utility Host Library