8.20. mqnic_ptp_perout

mqnic_ptp_perout implements the PTP period output functionality. It wraps ptp_perout and provides a register interface for control, see PTP period output register block.

8.20.1. Parameters

REG_ADDR_WIDTH

Register interface address width, default 6.

REG_DATA_WIDTH

Register interface data width, default 32.

REG_STRB_WIDTH

Register interface byte enable width, must be set to (REG_DATA_WIDTH/8).

RB_BASE_ADDR

Base address of control register block, default 0.

RB_NEXT_PTR

Address of next control register block, default 0.

8.20.2. Ports

clk

Logic clock.

Signal	Dir	Width	Description
clk	in	1	Logic clock

rst

Logic reset, active high

Signal	Dir	Width	Description
rst	in	1	Logic reset, active high

reg

Control register interface

Signal	Dir	Width	Description
reg_wr_addr	in	REG_ADDR_WIDTH	Write address
reg_wr_data	in	REG_DATA_WIDTH	Write data
reg_wr_strb	in	REG_STRB_WIDTH	Write byte enable
reg_wr_en	in	1	Write enable
reg_wr_wait	out	1	Write wait
reg_wr_ack	out	1	Write acknowledge
reg_rd_addr	in	REG_ADDR_WIDTH	Read address
reg_rd_en	in	1	Read enable
reg_rd_data	out	REG_DATA_WIDTH	Read data
reg_rd_wait	out	1	Read wait
reg_rd_ack	out	1	Read acknowledge

ptp

PTP signals

Signal	Dir	Width	Description
ptp_ts_96	in	96	PTP timestamp
ptp_ts_step	in	1	PTP timestamp step
ptp_perout_locked	out	1	Period output locked
ptp_perout_error	out	1	Period output error
ptp_perout_pulse	out	1	Period output pulse