1
Download Triple-Speed Ethernet MegaCore Function User Guide
Transcript
UG-01008 2015.06.15 Transmit and Receive Command Registers (Dword Offset 0x3A – 0x3B) Dword Name R/W 6-13 Description Offset 0x2F 0x30 0x31 0x32 0x33 0x34 0x35 0x36 0x37 0x38 0x39 etherStatsOversi zePkts etherStatsPkts64 Octets etherStatsPkts65 to127Octets etherStatsPkts12 8to255Octets etherStatsPkts25 6to511Octets etherStatsPkts51 2to1023Octets etherStatsPkts10 24to1518Octets etherStatsPkts15 19toXOctets etherStatsJabber s etherStatsFragme nts Reserved RO The number of frames received that are longer than the value configured in the frm_length register. This count does not include errored frames. RO The number of 64-byte frames received. This count includes good and errored frames. RO The number of received good and errored frames between the length of 65 and 127 bytes. RO The number of received good and errored frames between the length of 128 and 255 bytes. RO The number of received good and errored frames between the length of 256 and 511 bytes. RO The number of received good and errored frames between the length of 512 and 1023 bytes. RO The number of received good and errored frames between the length of 1024 and 1518 bytes. RO The number of received good and errored frames between the length of 1519 and the maximum frame length configured in the frm_length register. RO Too long frames with CRC error. RO Too short frames with CRC error. — Unused Extended Statistics Counters (0x3C – 0x3E) 0x3C 0x3D 0x3E msb_ aOctetsTransmitt edOK msb_ aOctetsReceivedO K msb_ etherStatsOctets RO RO RO Upper 32 bits of the respective statistics counters. By default all statistics counters are 32 bits wide. These statistics counters can be extended to 64 bits by turning on the Enable 64-bit byte counters parameter. To read the counter, read the lower 32 bits first, then followed by the extended statistic counter bits. Transmit and Receive Command Registers (Dword Offset 0x3A – 0x3B) Table 6-5 describes the registers that determine how the MAC function processes transmit and receive frames. A software reset does not change the values in these registers. Configuration Register Space Send Feedback Altera Corporation
