Entity: otp_ctrl_lci

• File: otp_ctrl_lci.sv

Diagram

Description

Generics

Generic name	Type	Value	Description
Info	part_info_t	PartInfoDefault	Lifecycle partition information

Ports

Port name	Direction	Type	Description
clk_i	input
rst_ni	input
lci_en_i	input
escalate_en_i	input		Escalation input. This moves the FSM into a terminal state and locks down the partition.
lc_req_i	input		Life cycle transition request. In order to perform a state transition, the LC controller signals the new count and state. The OTP wrapper then only programs bits that have not been programmed before. Note that a transition request will fail if the request attempts to clear already programmed bits within OTP.
lc_data_i	input	[Info.size*8-1:0]
lc_ack_o	output
lc_err_o	output
error_o	output	otp_err_e	Output error state of partition, to be consumed by OTP error/alert logic. Note that most errors are not recoverable and move the partition FSM into a terminal error state.
lci_prog_idle_o	output
otp_req_o	output		OTP interface
otp_cmd_o	output
otp_size_o	output	[OtpSizeWidth-1:0]
otp_wdata_o	output	[OtpIfWidth-1:0]
otp_addr_o	output	[OtpAddrWidth-1:0]
otp_gnt_i	input
otp_rvalid_i	input
otp_rdata_i	input	[ScrmblBlockWidth-1:0]
otp_err_i	input

Signals

Name	Type	Description
cnt_clr	logic
cnt_en	logic
cnt_d	logic [CntWidth-1:0]
cnt_q	logic [CntWidth-1:0]
error_d	otp_err_e
error_q	otp_err_e
state_d	state_e
state_q	state_e
cnt_q	[OtpByteAddrWidth-1:OtpAddrShift]
data	logic [NumLcOtpWords-1:0][OtpWidth-1:0]
unused_rdata	logic
state_raw_q	logic [StateWidth-1:0]	///////////// Registers // ///////////// This primitive is used to place a size-only constraint on the flops in order to prevent FSM state encoding optimizations.

Constants

Name	Type	Value	Description
NumLcOtpWords	int	int'(Info.size) >> OtpAddrShift
CntWidth	int	vbits(NumLcOtpWords)
LastLcOtpWordInt	int unsigned	NumLcOtpWords - 1
LastLcOtpWord	bit [CntWidth-1:0]	undefined
StateWidth	int	9	////////////////// Controller FSM // ////////////////// Encoding generated with ./sparse-fsm-encode.py -d 5 -m 5 -n 9 -s 558234734 Hamming distance histogram: 0: -- 1: -- 2: -- 3: -- 4: -- 5:

Types

Name	Type	Description
state_e	enum logic [StateWidth-1:0] { ResetSt = 9'b010110111, IdleSt = 9'b101010010, WriteSt = 9'b111101110, WriteWaitSt = 9'b100011101, ErrorSt = 9'b010000000 }

Processes

• p_fsm: ( )

• p_regs: ( @(posedge clk_i or negedge rst_ni) )

Instantiations

• u_state_regs: prim_flop