TOD Master (Time of Day, NMEA)

Overview Key Features Offering Brief What's Included Ordering Information Documentation & Resources Markets

NetTimeLogic GmbH

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NetTimeLogic’s Time Of Day (TOD) Master Clock is a full hardware (FPGA) only implementation of a synchronization core able to synchronize a Time of Day sink via NMEA over UART. The whole message creation, algorithms and calculations are implemented in the core, no CPU is required. This allows running TOD synchronization completely independent and standalone from the user application.

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Key Features

Time of Day Master Clock
Built-in UART transmitter with configurable baud rate
NMEA message creator
Support for NMEA GPZDA and RMC messages for time distribution
Hardware time conversion from seconds since midnight 1.1.1970 (Linux, TAI, PTP) into Time of Day format (hh:mm:ss dd:mm:yyyy)
Sending at the local second overflow
Local time can be set via registers
AXI4 Light register set or static configuration

Offering Brief

Device Family	Arria® 10 SX SoC FPGA, Cyclone® IV GX FPGA, Agilex® 5 FPGAs and SoC FPGAs E-Series, MAX® 10 FPGA, Cyclone® V SX SoC FPGA, Arria® V GZ FPGA, Agilex® 9 FPGAs and SoC FPGAs Direct RF-Series, Agilex® 7 FPGAs and SoC FPGAs I-Series, Arria® V SX SoC FPGA, Stratix® 10 DX FPGA, Stratix® 10 SX SoC FPGA, Agilex® 7 FPGAs and SoC FPGAs M-Series, Cyclone® V GT FPGA, Arria® 10 GT FPGA, Arria® V ST SoC FPGA, Arria® 10 GX FPGA, Stratix® 10 TX FPGA, Cyclone® V SE SoC FPGA, Stratix® IV E FPGA, Stratix® IV GX FPGA, Arria® V GX FPGA, Cyclone® V E FPGA, Agilex® 3 FPGAs and SoC FPGAs C-Series, Cyclone® V GX FPGA, Stratix® V GS FPGA, Stratix® V GX FPGA, Cyclone® V ST SoC FPGA, Agilex® 5 FPGAs and SoC FPGAs D-Series, Stratix® 10 GX FPGA, Arria® V GT FPGA, Cyclone® 10 LP FPGA, Agilex® 7 FPGAs and SoC FPGAs F-Series, Cyclone® 10 GX FPGA, Cyclone® IV E FPGA, Stratix® 10 AX SoC FPGA
Offering Status	Production
Demo	No
Integrated Testbench	Yes
Evaluation License	Yes
Design Examples Available	Yes
Compliance	No
Intertop	ISPCS, IIC
Latest Quartus Version Supported	25.1.0
OS Support	Not required
Development Language	VHDL