Adaptec 1737100 Programmer Manual - Page 158

AIC-6915 Ethernet LAN Controller Programmer's Manual Table 7-109. MAC Statistic Register (Continued) Byte Addr Statistics Source Priority Bits Descriptions 6Ch Receive Packets 128 to 255 Bytes MAC (RX) RMON 32 Count the number of receive frames whose length is between 128 and 255 bytes. 70h Receive Packets 256 to 511 Bytes MAC (RX) RMON 32 Count the number of receive frames whose length is between 256 and 511 bytes. 74h Receive Packets 512 to 1023 Bytes MAC (RX) RMON 32 Count the number of receive frames whose length is between 512 and 1023 bytes. 78h Receive Packets 1024 MAC to 1518 Bytes (RX) RMON 32 Count the number of receive frames whose length is between 1024 and 1518 bytes. 7Ch Frames Lost Due to RX Internal Receive Errors. (Fifo Overflow Or No Descriptor.) R 32 Count the number of frame discarded by receive engine due to FIFO overflow or no descriptor. 80h Transmit Fifo TX Underflow Counts. O 16 Count the number of frames which encounter a FIFO underflow during transmission. Note: This counter is used for internal debugging purposes only and is not a real counter for Network Management. Note: Due to the limitation of the SRAM size, Receive Multicast, Broadcast, and VLAN packets are counted by software for RMON usage. 7-86