H-Tile Hard IP Ethernet Intel® FPGA IP User Guide: Stratix® 10 Devices

ID 683430
Date 4/09/2024
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

B.6.67. TX Statistics Counter Status

TX Statistics Counter Status

Reports the status of the TX Stats counters

Offset: 0x846

TX Statistics Counter Status Fields

Bit Name Description Access Reset
1 tx_shadow_on TX Shadow Request in progress
1: The CSRs for the TX Statistics are currently frozen, and holding the statistic values from the last time a shadow request was made
  • Shadow on is asserted for either a shadow request or a snapshot
RO 0x0
0 tx_parity_err TX Statistics parity error detected
1: A parity error was detected on at least one of the statistics counters since the last time this bit was cleared
  • Statistics counter values are stored periodically by EHIP for long term storage
  • Whenever a counter value is stored, a parity value is calculated for the new value
  • Whenever a stats value is updated, the parity value of the old value is calculated. If it doesn't match the stored value, the sticky parity error bit is asserted
  • If tx_parity_err is high, it means sometime in the past, a parity error was detected on the stats memory
RO 0x0