Referring to the Comportable guideline for peripheral device functionality, the module ac_range_check 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
| Port Name | Package::Struct | Type | Act | Width | Description |
|---|
| range_check_overwrite | prim_mubi_pkg::mubi8 | uni | rcv | 1 | Overwrites all ranges and let all requests pass through. |
| ctn_tl_h2d | tlul_pkg::tl_h2d | uni | rcv | 1 | TL-UL input port (request part), synchronous |
| ctn_tl_d2h | tlul_pkg::tl_d2h | uni | req | 1 | TL-UL input port (response part), synchronous |
| ctn_filtered_tl_h2d | tlul_pkg::tl_h2d | uni | req | 1 | Filtered TL-UL output port (request part), synchronous |
| ctn_filtered_tl_d2h | tlul_pkg::tl_d2h | uni | rcv | 1 | Filtered TL-UL output port (response part), synchronous |
| racl_policies | top_racl_pkg::racl_policy_vec | uni | rcv | 1 | Incoming RACL policy vector from a racl_ctrl instance. The policy selection vector (parameter) selects the policy for each register. |
| racl_error | top_racl_pkg::racl_error_log | uni | req | 1 | RACL error log information of this module. |
| tl | tlul_pkg::tl | req_rsp | rsp | 1 | |
| Interrupt Name | Type | Description |
|---|
| deny_cnt_reached | Status | Deny counter has exceeded threshold. |
| Alert Name | Description |
|---|
| recov_ctrl_update_err | This recoverable alert is triggered upon detecting an update error in the shadowed Control Register. |
| fatal_fault | This fatal alert is triggered when a fatal TL-UL bus integrity fault is detected or the internal counter has an error. |
| Countermeasure ID | Description |
|---|
| AC_RANGE_CHECK.BUS.INTEGRITY | End-to-end bus integrity scheme. |
| AC_RANGE_CHECK.CTRL.REGWEN_MUBI | Registers are protected from writes with a multi-bit encoded signal. |
| AC_RANGE_CHECK.CTRL.MUBI | Registers have multi-bit encoded fields. |
| AC_RANGE_CHECK.INTERSIG.MUBI | Range overwrite singal to bypass the matching logic. |
| AC_RANGE_CHECK.CTR.REDUN | The log counter is protected by a second counter that counts in the opposite direction. |