External ToD Bus Interface - 3.3 English

10G/25G High Speed Ethernet Subsystem Product Guide (PG210)
Document ID
PG210
Release Date
2020-12-16
Version
3.3 English
Table 1. External ToD Bus Interface
Signal Direction Clock Domain Description
tod_1pps_in IN N/A External bus 1-PPS input
tod_sec_clk_in IN N/A External bus clock, used for tod_sec_in
tod_sec_in IN tod_sec_clk_in External bus seconds serial data
tod_1pps_out Output ts_clk

1-PPS output

Asserted when the system timer’s nano-second field rolls over
tod_sec_clk_out IN N/A Echo of external bus clock
tod_sec_out IN tod_sec_clk_in Serial output of internal ToD seconds