fcs_errors (GEM) Register Description
Register Name | fcs_errors |
---|---|
Offset Address | 0x0000000190 |
Absolute Address |
0x00FF0B0190 (GEM0) 0x00FF0C0190 (GEM1) 0x00FF0D0190 (GEM2) 0x00FF0E0190 (GEM3) |
Width | 32 |
Type | mixedMixed types. See bit-field details. |
Reset Value | 0x00000000 |
Description | Frame Check Sequence Errors |
fcs_errors (GEM) Register Bit-Field Summary
Field Name | Bits | Type | Reset Value | Description |
---|---|---|---|---|
Reserved | 31:10 | roRead-only | 0x0 | Reserved, read as 0, ignored on write. |
count | 9:0 | rwNormal read/write | 0x0 | Frame 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. |