Texas Instruments THUNDER TNETX3270 User Manual
Page 25
TNETX3270
ThunderSWITCH
24/3 ETHERNET
SWITCH
WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS
SPWS043B – NOVEMBER 1997 – REVISED APRIL 1999
25
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
Table 5. Source-Port Pretag Encoding
MxxTXER
MxxTXD3–
MxxTXD0
SOURCE PORT
0
0000
Port 00
0
0001
Port 01
0
0010
Port 02
0
0011
Port 03
0
0100
Port 04
0
0101
Port 05
0
0110
Port 06
0
0111
Port 07
0
1000
Port 08
0
1001
Port 09
0
1010
Port 10
0
1011
Port 11
0
1100
Port 12
0
1101
Port 13
0
1110
Port 14
0
1111
Port 15
1
0000
Port 16
1
0001
Port 17
1
0010
Port 18
1
0011
Port 19
1
0100
Port 20
1
0101
Port 21
1
0110
Port 22
1
0111
Port 23
1
1000
Port 24
1
1001
Port 25
1
1010
Port 26
1
1011
Port 27 (NM port)
1
11xx
Reserved