fcs_errors (GEM) Register

Zynq UltraScale+ Devices Register Reference (UG1087)

Document ID
UG1087
Release Date
2024-03-13
Revision
1.10

fcs_errors (GEM) Register Description

Register Namefcs_errors
Offset Address0x0000000190
Absolute Address 0x00FF0B0190 (GEM0)
0x00FF0C0190 (GEM1)
0x00FF0D0190 (GEM2)
0x00FF0E0190 (GEM3)
Width32
TypemixedMixed types. See bit-field details.
Reset Value0x00000000
DescriptionFrame Check Sequence Errors

fcs_errors (GEM) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
Reserved31:10roRead-only0x0Reserved, read as 0, ignored on write.
count 9:0rwNormal read/write0x0Frame check sequence errors - a 10 bit register counting frames that are an integral number of bytes, have bad CRC and are between 64 and 1518 bytes in length (1536 if bit 8 set in network configuration register, 10,240 bytes if bit 3 is set in the network configuration register). 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 being enabled in bit 26 of the network configuration register.