Entity: entropy_src

• File: entropy_src.sv

Diagram

Description

Generics

Generic name	Type	Value	Description
Stub	bit	1'b0
NumAlerts	logic [NumAlerts-1:0]	undefined
EsFifoDepth	int	4

Ports

Port name	Direction	Type	Description
clk_i	input
rst_ni	input
tl_i	input		Bus Interface
tl_o	output
otp_en_entropy_src_fw_read_i	input		OTP Interface
otp_en_entropy_src_fw_over_i	input
rng_fips_o	output		RNG Interface
entropy_src_hw_if_i	input	entropy_src_hw_if_req_t	Entropy Interface
entropy_src_hw_if_o	output	entropy_src_hw_if_rsp_t
entropy_src_rng_o	output	entropy_src_rng_req_t	RNG Interface
entropy_src_rng_i	input	entropy_src_rng_rsp_t
cs_aes_halt_o	output	cs_aes_halt_req_t	CSRNG Interface
cs_aes_halt_i	input	cs_aes_halt_rsp_t
entropy_src_xht_o	output	entropy_src_xht_req_t	External Health Test Interface
entropy_src_xht_i	input	entropy_src_xht_rsp_t
alert_rx_i	input	[NumAlerts-1:0]	Alerts
alert_tx_o	output	[NumAlerts-1:0]
intr_es_entropy_valid_o	output		Interrupts
intr_es_health_test_failed_o	output
intr_es_observe_fifo_ready_o	output
intr_es_fatal_err_o	output

Signals

Name	Type	Description
hw2reg	entropy_src_hw2reg_t	common signals
reg2hw	entropy_src_reg2hw_t
alert_test	logic [NumAlerts-1:0]
alert	logic [NumAlerts-1:0]
core_rst_n	logic	core signals
core_hw2reg	entropy_src_hw2reg_t
core_entropy_hw_if	entropy_src_hw_if_rsp_t
core_rng	entropy_src_rng_req_t
core_aes_halt	cs_aes_halt_req_t
core_xht	entropy_src_xht_req_t
core_intr_es_entropy_valid	logic
core_intr_es_health_test_failed	logic
core_intr_es_observe_fifo_ready	logic	TODO: add intrp logic core_intr_es_ebus_check_failed;
core_intr_es_fatal_err	logic
core_alert_test	logic [NumAlerts-1:0]
core_alert	logic [NumAlerts-1:0]
stub_hw2reg	entropy_src_hw2reg_t
stub_entropy_hw_if	entropy_src_hw_if_rsp_t
stub_es_valid	logic
stub_alert_test	logic [NumAlerts-1:0]
stub_alert	logic [NumAlerts-1:0]
stub_lfsr_value	logic [StubLfsrWidth-1:0]
intg_err_alert	logic [NumAlerts-1:0]	///////////////////////// core entropy operation /////////////////////////
efuse_es_sw_reg_en	logic
efuse_es_sw_ov_en	logic

Constants

Name	Type	Value	Description
StubLfsrWidth	int	64	stub signals
Copies	int	CSRNG_BUS_WIDTH / StubLfsrWidth

Instantiations

• u_reg: entropy_src_reg_top

• u_entropy_src_core: entropy_src_core