Instruction Manual

TNETX4090
ThunderSWITCH II

9-PORT 100-/1000-MBIT/S ETHERNET

SWITCH
SPWS044E – DECEMBER 1997 – REVISED AUGUST 1999
24
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
DIO interface description (continued)
Table 3 and Table 4 list the least significant byte address for the port-specific statistics. Each statistic is four bytes
long. To determine the address of a particular statistic, replace the xx in the head column with the characters
from the tail address. Table 3 has two tail columns: one for even-numbered ports and the other for
odd-numbered ports. See the
TNETX4090 Programmer’s Reference Guide, literature number SPAU003, for
a detailed description of the statistic registers.
Example:
Port 7 head = 0x83xx
64-octet frames tail = A8 (odd-numbered port)
Port 7 octet frames statistic = 0x83A8