AR# 61933

PG066 (v5.2) - Description of SYNC~ behavior in Figure 3-8 is incorrect


In (PG066), the JESD204 v5.2 LogiCORE IP Product Guide, Figure 3-8 describes Deterministic Latency across the JESD204B Link.

Figure 3-8 shows SYNC~ going high before the transmit device starts transmitting, while the text describing this states "SYNC~ signal going Low". 

Which is correct?


SYNC~ is an active low synchronization request signal, therefore it is deasserted by going high.

The text describing SYNC~ behavior on page 54 of (PG066) v5.2 should state:

"When the transmit device detects the SYNC~ signal going High, it waits until the next LMFC crossing and starts transmitting data."

(PG066) v6.0 includes this updated accurate description.



Answer Number 问答标题 问题版本 已解决问题的版本
54480 LogiCORE IP JESD204 - Release Notes and Known Issues for Vivado 2013.1 and newer tools N/A N/A
AR# 61933
日期 04/05/2019
状态 Active
Type 综合文章