AR# 51824

14.2 Zynq IP - What are the units used in the UART receiver timeout error interrupt status?

Description

On page 463 of the Zynq TRM (UG585) it states, "TIMEOUT: Receiver Timeout Error interrupt status. This event is triggered whenever the receiver timeout counter has expired due to a long idle condition".

However, what are the units of this timeout? Is this based on the baud_clock/bit_clock or the baud_sample?

Solution

The receiver timeout counter is based on baud_clock/bit_clock and not on baud_sample. This is shown in the diagram below:

uart_baud.png
AR# 51824
Date 09/14/2012
Status Active
Type General Article
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