3. RapidIO Lanes > Port and Lane Initialization Sequence
CPS-1848 User Manual
81
June 2, 2014
Formal Status
This document is confidential and is subject to an NDA.
Integrated Device Technology
3.4.1.3
Bit Error Rate Measurement for RapidIO Compliant Data
Bit error rate testing is facilitated by use of the Error Management Extensions registers. The physical layer error management
extensions registers can be used to count the number of received bit errors on the link. To configure a port to count bit errors,
perform the steps outlined in the following table.
Once the above steps are completed for a port, the
.ERR_RATE_CNTR field can be read to
determine the number of errors seen since the counter was last cleared to 0.
The above algorithm reports all detectable errors for a port. If a port has multiple lanes, it is not possible to attribute the errors
to a particular lane. To monitor errors on an lane-by-lane basis, use the ERR_8B10B field of the
.
Table 24: Configuring Bit Error Measurement
Step
Offset
Value
Enable all Rx error events
0x1044 (Port 0)
Port {0..17} Error Rate Enable
0x004E8015
Clear counter to 0, allow
counter to reach 0xFF
0x1068 (Port 0)
0x00030000
Disable event notification
0x106C (Port 0)
0x00000000