32.8.78 GMAC Frame Check Sequence Errors Register

Table 32-93. Register Bit Attribute Legend
SymbolDescriptionSymbolDescriptionSymbolDescription
RReadable bitHCCleared by Hardware(Grey cell)Unimplemented
WWritable bitHSSet by HardwareXBit is unknown at Reset
KWrite to clearSSoftware settable bit
Name: FCSE
Offset: 0x1190
Reset: 0x00000000
Property: Read-only

Bit 3130292827262524 
          
Access  
Reset  
Bit 2322212019181716 
          
Access  
Reset  
Bit 15141312111098 
       FCKR[9:8] 
Access RR 
Reset 00 
Bit 76543210 
 FCKR[7:0] 
Access RRRRRRRR 
Reset 00000000 

Bits 9:0 – FCKR[9:0] Frame Check Sequence Errors

The register counts frames that are an integral number of bytes, have bad CRC and are between 64 and 1518 bytes in length (1536 Bytes if NCFGR.MAXFS is written to '1'). This register is also incremented if a symbol error is detected and the frame is of valid length and has an integral number of bytes.

This register is incremented for a frame with bad FCS, regardless of whether it is copied to memory due to ignore FCS mode (enabled by writing NCFGR.IRXFCS=1).