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Hardware Interfaces

Referring to the Comportable guideline for peripheral device functionality, the module racl_ctrl has the following hardware interfaces defined

  • Primary Clock: clk_i
  • Other Clocks: none
  • Bus Device Interfaces (TL-UL): tl
  • Bus Host Interfaces (TL-UL): none
  • Peripheral Pins for Chip IO: none

Inter-Module Signals

Port Name Package::Struct Type Act Width Description
racl_policies top_racl_pkg::racl_policy_vec uni req 1 Policy vector distributed to the subscribing RACL IPs.
racl_error top_racl_pkg::racl_error_log uni rcv NumSubscribingIps Error log information from all IPs. Only one IP can raise an error at a time.
racl_error_external top_racl_pkg::racl_error_log uni rcv NumExternalSubscribingIps Error log information from all external IPs. Only one IP can raise an error at a time.
tl tlul_pkg::tl req_rsp rsp 1

Interrupts

Interrupt Name Type Description
racl_error Status RACL error has occurred.

Security Alerts

Alert Name Description
fatal_fault This fatal alert is triggered when a fatal TL-UL bus integrity fault is detected.
recov_ctrl_update_err This recoverable alert is triggered upon detecting an update error in the shadowed Control Register.

Security Countermeasures

Countermeasure ID Description
RACL_CTRL.BUS.INTEGRITY End-to-end bus integrity scheme.
RACL_CTRL.RACL_POLICY.CONFIG.SHADOW RACL policy registers are shadowed.