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

ID 683430
Date 1/18/2024
Public
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B.7.69. RX Statistics Counter Status

RX Statistics Counter Status

Reports the status of the RX Stats counters

Offset: 0x946

RX Statistics Counter Status Fields

Bit Name Description Access Reset
1 rx_shadow_on RX Shadow Request in progress
1: The CSRs for the RX Statistics are currently frozen, and holding the Stats 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 rx_parity_err RX 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 rx_parity_err is high, it means sometime in the past, a parity error was detected on the stats memory
RO 0x0