Skip to content

Commit

Permalink
Grammar changes from review
Browse files Browse the repository at this point in the history
  • Loading branch information
calebofearth committed Feb 2, 2024
1 parent c51200d commit aae28a6
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion docs/CaliptraIntegrationSpecification.md
Original file line number Diff line number Diff line change
Expand Up @@ -240,7 +240,7 @@ SoC must ensure that there are no SCAN cells on the flops that latch this key in

The interface signals GENERIC\_INPUT\_WIRES and GENERIC\_OUTPUT\_WIRES are placeholders on the SoC interface reserved for late binding features. This may include any feature that is required for correct operation of the design in the final integrated SoC and that may not be accommodated through existing interface signaling (such as the mailbox).

While these late binding interface pins are generic in nature until assigned a function, integrators must not define non-standard use cases for these pins. Defining standard use cases ensures that the security posture of Caliptra in the final implementation is not degraded relative to the consortium design intent. Any bits in GENERIC\_INPUT\_WIRES for which a function has not been defined (in the Caliptra version that is being integrated) must be tied to a 0-value. These undefined input bits shall not be connected to any flip flops (which would allow run time transitions on the value).
While these late binding interface pins are generic in nature until assigned a function, integrators must not define non-standard use cases for these pins. Defining standard use cases ensures that the security posture of Caliptra in the final implementation is not degraded relative to the consortium design intent. Bits in GENERIC\_INPUT\_WIRES that don't have a function defined in Caliptra must be tied to a 0-value. These undefined input bits shall not be connected to any flip flops (which would allow run-time transitions on the value).

Each wire connects to a register in the SoC Interface register bank through which communication to the internal microprocessor may be facilitated. Each signal is 64 bits in size.

Expand Down

0 comments on commit aae28a6

Please sign in to comment.