XSemNpiStatus - 2022.1 English

Xilinx Standalone Library Documentation: BSP and Libraries Document Collection (UG643)
Document ID
UG643
Release Date
2022-04-21
Version
2022.1 English

XSemNpiStatus - NPI Status structure to store the data read from PMC RAM registers. This structure provides:

  • NPI scan status information
  • NPI descriptor slave skip counter value if arbitration fails
  • NPI scan counter value
  • NPI heartbeat counter value
  • NPI scan error information if SHA mismatch is detected

Declaration 

typedef struct
{
  u32 Status,
  u32 SlvSkipCnt[MAX_NPI_SLV_SKIP_CNT],
  u32 ScanCnt,
  u32 HbCnt,
  u32 ErrInfo[MAX_NPI_ERR_INFO_CNT]
} XSemNpiStatus;
Table 1. Structure XSemNpiStatus Member Description
Member Description
Status

NPI Status

SlvSkipCnt

Slave Skip Count

ScanCnt

Scan Count

HbCnt

Heart Beat Count

ErrInfo
Error Information when SHA mismatch occurs error details in case of SHA mismatch failure. -
  • ErrInfo[0]:Calculated SHA value of the descriptor for which mismatch is observed.
  • ErrInfo[1]:
    • Bit[31:16] Reserved.
    • Bit[15:8] The descriptor index number for which the SHA failure is observed.
    • Bit[7:0] The skip count index of the descriptor where SHA failure is observed (This value is zero if arbitration is not applicable for the descriptor).